5th nagoya biomimetics international symposium (nabis) · 8. in 2014 won thomson reuters china...

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5th Nagoya Biomimetics International Symposium (NaBIS)

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October 20th (Thu.)-21th (Fri.), 2016

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Nagoya institute of Technology (NITech)

Main Hall, First Floor, No. 4 Building

Gokiso, Showa-ku, Nagoya 466-8555, Japan

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Organized by Nagoya Institute of Technology National Institute of Advanced Industrial Science and Technology 主催：名古屋工業大学、国立研究開発法人産業技術総合研究所 Co-organized by Innovative Materials Engineering Based on Biological Diversity, Ministry of Education, Culture, Sports, Science and Technology (MEXT, Japan) 共催：文部科学省科学技術研究費補助金（新学術領域）「生物規範工学」 Cooperation by Research Group on Biomimetics of The Society of Polymer Science (Japan) NBCI at a glance 協賛：高分子学会バイオミメティクス研究会、NBCIバイオミメティクス分科会

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エンジニアリングネオバイオミメティクスを指向した表面・界面，材料に関する最先端の研究を展開している国内外の第一線の研究者を招き講演会を開催する。また、産学官をはじめ、異分野領域に所属する研究者、技術者の交流の場として広く開放する。 Since 2012, Grant�in�Aid for Scientific Research on Innovative Areas (Leader: Prof. Masatsugu Shimomura (Chitose Institute of Science and Technology)) has organized Nagoya Biomimetics International Symposium (NaBIS) to provide the world community with opportunities to meet and discuss most updated topics, in particular, surface/interface and materials, in engineering neo-biomimetics. We have pleasure in announcing that the 5th NaBIS will be held in Nagoya from October 20th through 21th, 2016. We look forward to having the pleasure welcoming you to the 5th NaBIS.

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PROGRAM

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October 20th (Thu)

11:00-11:05 Opening Remarks Prof. Masatsugu Shimomura (Chitose Institute of Science and Technology, Japan)

＜Chair： Dr. Atsushi Hozumi＞ 11:05-12:05 Plenary Talk 1 Prof. Lei Jiang (Chinese Academy of Sciences, China) ······················································· 20 Smart Interfacial Materials from Super-Wettability to Binary Cooperative Complementary Systems

12:05-13:00 Lunch

＜Chair：Dr. Chihiro Urata＞ 13:00-13:30 Invite Talk 1 Prof. Raju Gupta (IIT Kanpur, India) ····················································································· 22 Biomass Waste-Derived Carbon Nanostructures and Their Metal Oxide Composites for Waste Water Treatment Applications

13:30-14:00 Invite Talk 2 Prof. Michinari Kohri (Chiba Univ., Japan) ·········································································· 24 Biomimetic Structural Colors Inspired by Bird Feathers

14:00-14:30 Invite Talk 3 Prof. Hyuneui Lim (KIMM, South Korea) ············································································· 26 Nature inspired nanosurfaces and beyond

14:30-15:00 Invite Talk 4 Dr. Chihiro Urata (AIST, Japan) ··························································································· 28 Anti-sticking properties of self-lubricating organogels (SLUGs) inspired by slug's skin

15:00-15:15 Break

＜Chair：Dr. Matt W. England＞ 15:15-15:45 Invite Talk 5 Prof. Animangsu Ghatak (IIT, Kanpur, India) ······································································ 30 Bio-inspired Adhesion and Locomotion of Soft Objects

15:45-16:15 Invite Talk 6 Dr. Takuya Ohzono (AIST, Japan) ······················································································· 32 Sliding Friction on Shape-Tunable Wrinkles

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16:15-16:45 Invite Talk 7 Mr. Takashi Kushibiki (Shimadzu Corporation, Japan) ······················································ 34 X-ray CT Observation of Living Things

16:45-18:00 Poster session

18:30 Banquet

October 21th (Fri)

＜Chair：Dr. Atsushi Hozumi＞ 10:00-11:00 Plenary Talk 2 Prof. Thomas J. McCarthy (UMass, Amherst, USA) ························································ 35 Water and its Affinity to Hydrophobic Surfaces

＜Chair：Dr. Tomoya Sato＞ 11:00-11:30 Invite Talk 8 Prof. Yuji Hirai （Chitose Institute of Science and Technology, Japan） ·························· 37 AFM friction measurements of the insect scale surface

11:30-12:00 Invite Talk 9 Prof. Krishnacharya （IIT, Kanpur, India） ········································································· 39 Mechanically Tunable Adhesion/Friction of PDMS wrinkles

12:00-13:00 Lunch

＜Chair：Dr. Liming Wang＞ 13:00-13:30 Invite Talk 10 Prof. Syuji Fujii （Osaka Institute of Technology, Japan） ················································ 41 Particle stabilized soft dispersed systems as a platform towards adhesive materials

13:30-14:00 Invite Talk 11 Prof. Takayuki Kurokawa （Hokkaido Univ., Japan） ······················································· 43 Effect of Fibrous Skeleton at Clingfish Suction Pad

14:00-14:30 Invite Talk 12 Prof. Hirotaka Maeda （NITech, Japan） ·········································································· 45 Thermal Management using Diatom Shells

14:30-14:50 Break

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＜Chair： Prof. Syuji Fujii＞ 14:50-15:20 Invite Talk 13 Prof. Daisuke Ishii (NITech, Japan) ······················································································ 47 Biomimetic Liquid Manipulation on structured surfaces

15:20-15:50 Invite Talk 14 Prof. Haeshin Lee （KAIST, Korea） ·················································································· 49 CATECHOL Batteires: Improvement of Battery Performances by Catechol and its Deriveative Adhesive Molecules

15:50-16:00 Closing remarks Dr. Atsushi Hozumi (AIST, Japan)

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Poster Session ***************************************************************************

October 20th (Thu) 16:45-18:00 1. Building of a Database Promoting Conceptions on Biomimetics

Based on SEM Images of Insects ···························································································· 52 S. Nomuraa, T. Ogawab, M. Haseyamab and K. Kozakic (a National Museum of Nature and Science, bHokkaido University, c Osaka University)

2. X-ray micro CT Observation for Internal Structure of Insects ·············································· 53 Y. Nakase*a, S. Nomuraa, M. Edahirob and T. Kuchibikib (a National Museum of Nature and Science, b Shimadzu Corporation)

3. The origin of colour of a petal: subcellular structural change during the flowering from buds in a buttercup ······················ 54 Y. Yamahamaa, T. Shimozawab, S. Yoshiokac, D. Ishiid, H. Fudouzi e, H. Kubob, M. Shimomuraf, Y. Takakua, K.-i. Kimurag, Y. Uozuh, and T. Hariyama*a (aHamamatsu Universtiy School of Medicine, bHokkaido University, cTokyo University of Science, dNagoya Institute of Technology, eNational Institute of Materials Science, fChitose Institute of Science and Technology, gHokkaido University of Education, hDaikoku-cho, Tsurumi-ku, Yokohama)

4. Wettability of Snail’s Shells with Hydrophilic Treatment ························································ 55 R. Yamagishia, H. Maeda*a, T. Yokotaa, Y. Matsuo b, T. Kasugaa (a Nagoya Institute of Technology, b Hokkaido University)

5. Peripheral coding of sex-pheromone blend by male-specific odorant receptors in moth ················································································ 56 H. Mitsuno, T. Sakurai, R. Kanzaki (The University of Tokyo)

6. Inducible de novo biosynthesis of isoflavonoids in soybean leaves by Spodoptera litura (Lepidoptera: Noctuidae) derived elicitors: Tracer techniques aided by high resolution LCMS. ··················································································································································· 57 R. Nakata, N. Yoshinaga, M. Teraishi, Y. Okumoto, N. Mori* (Graduate School of Agriculture, Kyoto University)

7. Cellular Active Touch Sensing of Substrate Rigidity ······························································ 58 T. Kobayashi*a and M. Sokabeb (a Dep. Integrative Physiol., Nagoya University Grad. Sch. Med.)

8. Serendipity-Oriented Bio-TRIZ Database ················································································ 59 Y. Isonoa, T. Yamauchib, H. Kobayashic and T. Kobayashia （a Nagasaki University, b Niigata University, c Osaka University）

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9. Non-iridescent structural coloration of the inner feathers of Japanese blue-colored species ··································································································· 60 G. Morimoto (Yamashina Institute for Ornithology)

10. Development of self-assembled antifouling surfaces against barnacles ·································· 61

T. Murosaki*a, Y. Nogatab, Y. Hiraic, M. Shimomurac (a Asahikawa Medical University, b Central Research Institute of Electric Power Industry, c Chitose Institute of Science and Technology)

11. Functional analysis and surface modification of hierarchical

microstructures of diatom silica cell walls ·················································································· 62 Y. Maedaa, Y Niwaa, D. Kisailusb, T. Yoshino and T. Tanaka*a (aTokyo University of Agriculture and Technology, bUniversity of California)

12. The NanoSuit® method to observe the living mammalian tissue and cell ·································· 63

Y. Takaku*a, M. Shimomurab, T. Hariyamaa (aHamamatsu University School of Medicine, bChitose Institute of Science and Technology)

13. Sponge as a Potential Model of Biomimetics: New perspective ··············································· 64

R. Tsubaki (Japan Agency for Marine-Earth Science and Technology)

14. Analysis on social implementation of biomimetics technology in

Japan in the global perspective ··································································································· 65 R. Kohsaka*a, Y. Uchiyamaa, Y. Fujihirab (aTohoku University, bMuroran Institute of Technology)

15. Superhydrophobic Coatings Showing Excellent Durability to

Harsh Environmental Conditions ································································································· 66 L. Wang, C. Urata, T. Sato, M. W. England and A. Hozumi* (AIST)

16. Key Materials for Biomimetic Surfaces:

Potential of Functionalized Synthetic Janus Clay Nanoplatelets ·············································· 67 M. W. England, T. Sato, L. Wang, C. Urata, and A. Hozumi* (AIST)

17. Ionic Liquids-Infused Transparent Organogels:

Their Unique Optical and Chemical Properties ·········································································· 68 T. Sato, L. Wang, C. Urata, M. W. England, A. Hozumi* (AIST)

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Dr. Lei Jiang, Prof.

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemistry and Environment, Beihang University, Beijing 100191, China

E-mail: [email protected]

• Address: Zhongguancun East Road 29#, 100190 Beijing, P.R. China • Telephone: +86-10-82621396

Education & Professional Experience

1983-1987 Solid state physics, Jilin University, China, B.S. Major: Physics 1987-1990, Jilin University, China, M.S. Major: Physical chemistry 1990-1994, Jilin University,China & The University of Tokyo, Japan, Ph. D. Major: Physical chemistry 1994-1996, Akira Fujishima’s group in The University of Tokyo 1996-1999, Hashimoto’s project, Kanagawa Academy of Sciences and Technology 1999-2015, Institute of Chemistry, Chinese Academy of Science 2008-Present, School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics 2015-Present, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

AWARDS AND HONORS

1. In 2001 won the “Excellent Youth Funds” of National Natural Science Funding Committee. 2. In 2003 won the “Prize for the Excellent Supervisor of Ph. D. Students in CAS”. 3. In 2003 won the “Youth Innovation Prize of BSF” 4. In 2005 won the second-class prize of the “State Natural Science Award”. 5. In 2011 won the “TWAS Prize in Chemistry”.(The Academy of Sciences for the developing world) 6. In 2013 won the Advanced Science and Technology Award of "THE HO LEUNG HO LEE FUNDATION" 7. In 2014 won The MRS Mid-Career Researcher Award (Materials Research Society, USA�t) 8. In 2014 won Thomson Reuters China Citation Laureates, Highly Cited Researcher Award (Chemistry) , Highly

Cited Researcher Award ( Material Science), International Citation Impact Award. 9. In 2016 won UNESCO Medal "For Contribution to the Development of Nanoscience and Nanotechnologies" 10. In 2016 won Nikkei Asia Prize.

Selected Publications

• Gao, X. F.; Jiang, L. Water-repellent legs of water striders. Nature 2004, 432, 36-36. • Zheng, Y. M.; Bai, H.; Huang, Z. B.; Tian, X. L.; Nie, F. Q.; Zhao, Y.; Zhai, J.; Jiang, L. Directional water

collection on wetted spider silk. Nature 2010, 463, 640-643. • Chen, H.; Zhang, P.; Zhang, L.; Liu, H.; Jiang, Y.; Zhang, D.; Han, Z.; Jiang, L. Continuous directional water

transport on the peristome surface of Nepenthes alata. Nature 2016, 532, 85-89. • Ju, J.; Bai, H.; Zheng, Y.; Zhao, T.; Fang, R.; Jiang, L. A multi-structural and multi-functional integrated fog

collection system in cactus. Nat. Commun. 2012, 3, 1247. • Li, K.; Ju, J.; Xue, Z.; Ma, J.; Feng, L.; Gao, S.; Jiang, L. Structured cone arrays for continuous and effective

collection of micron-sized oil droplets from water. Nat. Commun. 2013, 4, 2276.

• Feng, L.; Li, S. H.; Li, Y. S.; Li, H. J.; Zhang, L. J.; Zhai, J.; Song, Y. L.; Liu, B. Q.; Jiang, L.; Zhu, D. B. Super-hydrophobic surfaces: From natural to artificial. Adv. Mater. 2002, 14, 1857-1860.

• Tian, Y.; Su, B.; Jiang, L. Interfacial Material System Exhibiting Superwettability. Adv. Mater. 2014, 26, 6872-6897.

• Sun, T. L.; Wang, G. J.; Feng, L.; Liu, B. Q.; Ma, Y. M.; Jiang, L.; Zhu, D. B. Reversible switching between superhydrophilicity and superhydrophobicity. Angew. Chem. Int. Ed. 2004, 43, 357-360.

• Feng, X. J.; Feng, L.; Jin, M. H.; Zhai, J.; Jiang, L.; Zhu, D. B. Reversible super-hydrophobicity to super-hydrophilicity transition of aligned ZnO nanorod films. J. Am. Chem. Soc. 2004, 126, 62-63.

• Su, B.; Tian, Y.; Jiang, L. Bioinspired Interfaces with Superwettability: From Materials to Chemistry. J. Am. Chem. Soc. 2016, 138, 1727-1748.

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Smart Interfacial Materials from Super-Wettability to Binary Cooperative Complementary Systems

Lei Jiang*a,b

aTechnical Institute of Physics and Chemistry, Chinese Academy of Sciences,

Beijing 100190, China bSchool of Chemistry and Environment, Beihang University, Beijing 100191,

China * E-mail: [email protected]

Learning from nature and based on lotus leaves and fish scale, we developed super-wettability system: superhydrophobic, superoleophobic, superhydrophilic, superoleophilic surfaces in air and superoleophobic, superareophobic, superoleophilic, superareophilic surfaces under water [1]. Further, we fabricated artificial materials with smart switchable super-wettability [2], i.e., nature-inspired binary cooperative complementary nanomaterials (BCCNMs) that consisting of two components with entirely opposite physiochemical properties at the nanoscale, are presented as a novel concept for the building of promising materials [3-4]. The smart super-wettability system has great applications in various fields, such as self-cleaning glasses, water/oil separation, anti-biofouling interfaces, and water collection system [5]. The concept of BCCNMs was further extended into 1D system. Energy conversion systems that based on artificial ion channels have been fabricated [6]. Also, we discovered the spider silk’s and cactus's amazing water collection and transportation capability [7], and based on these nature systems, artificial water collection fibers and oil/water separation system have been designed successfully [8]. Learning from nature, the constructed smart multiscale interfacial materials system not only has new applications, but also presents new knowledge: Super wettability based chemistry including basic chemical reactions, crystallization, nanofabrication arrays such as small molecule, polymer, nanoparticles, and so on [9]. Reference: 1. (a) Adv. Mater. 2014, 26, 6872-6897.. (b) J. Am. Chem. Soc. 2016, 138, 1727-1748. 2. Adv. Mater. 2008, 20 (15), 2842-2858. 3. Pure Appl. Chem. 2000, 72 (1-2), 73-81. 4. Small. 2015, 11, 1071-1096. 5. Adv. Mater. 2011, 23 (6), 719-734. 6. (a)Chem. Soc. Rev. 2011, 40 (5), 2385-2401; (b) Acc. Chem. Res. 2013, 46 (12), 2834-2846; (c) Adv. Mater. 2010, 22 (9), 1021-1024. (d) ACS

Nano 2009, 3 (11), 3339-3342; (e) Angew. Chem. Int. Ed. 2012, 51 (22), 5296-5307; 7. (a) Nature 2010, 463 (7281), 640-643; (b) Nat Commun 2012, 3, 1247. 8. (a) Nat Commun 2013, 4, 2276; (b) Adv. Mater. 2010, 22 (48), 5521-5525. 9. (a) Chem. Soc. Rev. 2012, 41 (23), 7832-7856; (b) Nat. Commun. 2015, 6, 6737. (c) Adv. Funct. Mater. 2011, 21 (17), 3297-3307; (d) Adv. Mater.

2012, 24 (4), 559-564; (e) Nano Research 2011, 4 (3), 266-273; (f) Soft Matter 2011, 7 (11), 5144-5149; (g Soft Matter 2012, 8 (3), 631-635; (h) Adv. Mater. 2012, 24 (20), 2780-2785; (i) Adv. Mater. 2013, 25 (29), 3968-3972; (j) J. Mater. Chem. A 2013, 1 (30), 8581-8586; (k) Adv. Mater. 2013, 25 (45), 6526-6533

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Dr. Raju Kumar GUPTA,

Department of Chemical Engineering,

Center for Nanosciences and Center for Environmental

Science and Engineering,

Indian Institute of Technology Kanpur, India


• Telephone: +91-5122596972 • Fax: +91-5122590104 • Website: http://www.iitk.ac.in/che/rkg.htm • Address: Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, U.P., India

Education & Academic Background

2001-2005 B.Tech, Department of Chemical Engineering, Indian Institute of Technology Roorkee, India 2006-2010 PhD, Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 2010-2011 Research Fellow, School of Materials Science and Engineering, Nanyang Technological University, Singapore 2015 Guest Researcher, National Institute of Advanced Industrial Science and Technology (AIST), Nagoya, Japan 2012-present Assistant Professor, Department of Chemical Engineering, Indian Institute of Technology Kanpur, India Awards: INSPIRE faculty award 2013 by DST, India; IEI Young Engineer Award 2014 by The Institution of Engineers, India; IAAM Young Scientist Award 2014 at International Smart Materials and Surfaces Conference, Bangkok, Thailand Recent Publications

• A. Tyagi, K. M. Tripathi, N. Singh, S. Choudhary and R. K. Gupta, “Green synthesis of carbon quantum dots from lemon peel waste: Applications in sensing and photocatalysis” RSC Advances, 6, 72423-72432, 2016.

• N. Singh, K. Mondal, M. Misra, A. Sharma and R. K. Gupta, “Quantum dot sensitized electrospun

mesoporous titanium dioxide hollow nanofibers for photocatalytic applications” RSC Advances, 6, 48109 - 48119, 2016.

• Prateek, V. K. Thakur and R. K. Gupta, “Recent progress on ferroelectric polymer based nanocomposites for

high energy density capacitors: Synthesis, dielectric properties and future aspects” Chemical Reviews, 116, 4260 - 4317, 2016.

• K. M. Tripathi, A. Tyagi, M. Ashfaq and R. K. Gupta, “Temperature dependent, shape variant synthesis of

photoluminescent and biocompatible carbon nanostructures from almond husk for applications in dye removal” RSC Advances, 6, 29545 - 29553, 2016.

• A. Tyagi, K. M. Tripathi and R. K. Gupta, “Recent progress on micro-scale energy storage devices and future

aspects”, Journal of Materials Chemistry A, 3, 22507-22541, 2015. • V. K. Thakur, M. K. Thakur and R. K. Gupta, “Graft copolymers of Natural Fibers for Green Composites”,

Carbohydrate Polymers, 104, 87-93, 2014. • V. K. Thakur, M. K. Thakur and R. K. Gupta, “Review: Raw Natural Fibers Based Polymer Composites”,

International Journal of Polymer Analysis and Characterization, 19, 256-271, 2014. • V. K. Thakur, M. K. Thakur and R. K. Gupta, “Rapid Synthesis of Graft Copolymers from Natural Cellulose

Fibers”, Carbohydrate Polymers, 98, 820-828, 2013.

• V. K. Thakur, M. K. Thakur and R. K. Gupta, “Graft Copolymers from Cellulose: Synthesis, Characterization and Evaluation”, Carbohydrate Polymers, 97, 18-25, 2013.

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Biomass Waste-Derived Carbon Nanostructures and Their Metal Oxide Composites for Waste Water Treatment

Applications

Narendra Singh,a,b Ankit Tyagi,a Mrinmoy Misra,a Kumud Malika Tripathia and Raju Kumar Gupta*a,b

a Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India b Center for Nanosciences and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, UP, India *E-mail address: [email protected]

There is large amount of biomass waste available around us. There is a need to recycle or conversion of theses waste materials into useful products because it will reduce the demand for new sources. Recycling these waste materials will also cut down the cost and efforts of transport and production otherwise these wastes would be lost in landfill sites. The potential of carbon nanostructures from biomass waste for environmental applications has not been fully utilized yet. In the first part of the presentation, I will talk about various carbon nanostructures obtained from different types of biomass wastes. The morphology and the size of the carbon nanostructures can be tailored through varying process conditions. Utilization of such carbon nanostructures as well as their metal oxide composites as adsorbents/photocatalysts for waste water treatment applications will be presented. Industrialization has resulted in different types of pollutions such as water and air pollution which is serious threat for our environment. Waste water contains both organic and inorganic pollutants which can cause serious disorder for human, animal and aquatic lives. Greater attention has been given in developing techniques to remove/degrade in particular organic pollutants to abate their harmful effects. Photocatalysis is one of most prominent processes for water purification which uses low cost photocatalysts harnessing solar energy with limited regeneration cycle. TiO2 is well known photocatalyst to degrade pollutants. However, TiO2 still requires modifications with other nanomaterials because the excitons created under the UV light rapidly recombine in 10-100 picosecond and absorb only ultraviolet part of sun light due to wide bandgap. In the second part of the presentation, our recent results on enhancing photocatalytic activity of TiO2 nanofibers for degradation of organic compounds through sensitization with quantum dots, doping with!transition metals and functionalization with metal nanoparticles will be presented. !

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Dr. Michinari KOHRI, Assoc. Prof.

Graduate School of Engineering,

Chiba University


• Telephone: +81 (0)43-290-3393 • Fax: +81 (0)43-290-3393 • Website: http://chem.tf.chiba-u.jp/gacb03/saito/toppu.html • Address: 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan


2002 Graduated from Graduate School of Engineering, Tohoku University 2004 Master of Engineering, Graduate School of Engineering, Tohoku University 2007 Doctor of Engineering, Graduate School of Engineering, Tohoku University 2007 Research Assistant Professor, IMRAM, Tohoku University 2008 Assistant Professor, Graduate School of Engineering, Chiba University 2012.8-11 Visiting Researcher, University Lyon 1, France 2015- Associate Professor, Graduate School of Engineering, Chiba University Award: Presentation Award (The Chemical Society of Japan, 2012) The Selected Lectures by Young Chemists (The Chemical Society of Japan, 2013) The Award for Encouragement of Research in Polymer Science (The Society of Polymer Science, 2013)

Recent Publications

• *M. Kohri and A. Kawamura, Colorless polydopamine coatings for creating functional interfaces, Polymer science: research advances, practical applications and educational aspects (Eds. A. Mendez-Vilas and A. Solano-Martín), Formatex Research Center, 2016, 159-168.

• *M. Kohri, Y. Nannichi, T. Taniguchi, and K. Kishikawa, Biomimetic non-iridescent structural color materials from polydopamine black particles that mimic melanin granules, J. Mater. Chem. C, 2015, 3, 720-724.

• *M. Kohri, Y. Nannichi, H. Kohma, D. Abe, T. Kojima, T. Taniguchi, and K. Kishikawa, Size control of polydopamine nodules formed on polystyrene particles during dopamine polymerization with carboxylic acid-containing compounds for the fabrication of raspberry-like particles, Colloids Surf. A: Physicochem. Eng. Aspects, 2014, 449, 114-120.

• H. Kohma, K. Uradokoro, *M. Kohri, T. Taniguchi, and K. Kishikawa, Hierarchically structured coatings by colorless polydopamine thin layer and polymer brush layer, Trans. Mat. Res. Soc. Jpn., 2014, 39, 157-160.

• *M. Kohri, H. Kohma, K. Uradokoro, T. Taniguchi, and K. Kishikawa, Fabrication of colored particles covered by dye-bearing colorless polydopamine layer, J. Colloid Sci. Biotechnol., 2014, 3, 337-342.

• *M. Kohri, H. Kohma, Y. Shinoda, M. Yamauchi, S. Yagai, T. Kojima, T. Taniguchi, and K. Kishikawa, A colorless functional polydopamine thin layer as a basis for polymer capsules, Polym. Chem., 2013, 4, 2696-2702.

• *M. Kohri, Y. Shinoda, H. Kohma, Y. Nannichi, M. Yamauchi, S. Yagai, T. Kojima, T. Taniguchi, and K. Kishikawa, Facile synthesis of free-standing polymer brush films based on a colorless polydopamine thin layer, Macromol. Rapid Commun., 2013, 34, 1220-1224.

• *M. Kohri, A. Kobayashi, H. Fukushima, T. Kojima, T. Taniguchi, K. Saito, and T. Nakahira, Enzymatic miniemulsion polymerization of styrene with a polymerizable surfactant, Polym. Chem., 2012, 3, 900-906.

• H. Fukushima, *M. Kohri, T. Kojima, T. Taniguchi, K. Saito, and T. Nakahira, Surface-initiated enzymatic vinyl polymerization: synthesis of polymer-grafted silica particles using horseradish peroxidase as catalyst, Polym. Chem., 2012, 3, 1123-1125.

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Biomimetic Structural Colors Inspired by Bird Feathers

Michinari Kohri*a, Ayaka Kawamuraa, and Gen Morimotob

aChiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan

bYamashina Institute for Ornithology, 115 Konoyama, Abiko, Chiba 270-1145, Japan

E-mail: [email protected] The beautiful structural colors in bird feathers are some of the brightest colors in nature, and some of these colors are created by arrays of melanin granules that act as both structural colors and scattering absorbers. Inspired by the color of bird feathers, high-visibility structural colors have been created by altering four variables: size, blackness, refractive index, and arrangement of the nano-elements. To control these four variables, we developed a facile method for the preparation of biomimetic core-shell particles with melanin-like polydopamine (PDA) shell layers. The size of the core-shell particles was controlled by adjusting the core polystyrene (PSt) particles’ diameter and the PDA shell thicknesses. The blackness and refractive index of the colloidal particles could be adjusted by controlling the thickness of the PDA shell. The arrangement of the particles was controlled by adjusting the surface roughness of the core-shell particles. This method enabled the production of both iridescent and non-iridescent structural colors from only one component. This simple and novel process of using core-shell particles containing PDA shell layers can be used in basic research on structural colors in nature and their practical applications.

26

Dr. Hyuneui Lim

Department of Nature-Inspired Nanoconvergence Systems,

Nano Convergence and Manufacturing Systems Research Division,

Korea Institute of Machinery & Materials


• Telephone: +82 (42)868-7106 • Fax: +82 (42)868-7933 • Website: http://www.kimm.re.kr • Address: 156 Gajeongbuk-Ro, Yuseong-gu, Daejeon, 34103, KOREA


1993 Graduated from Department of Chemistry, Sookmyung Women’s University, Seoul, Korea 1996 Master of Science, Analytical Chemistry, Korea University, Seoul, Korea Thesis: Study on the Analysis of Germanium by Hydride Generation- Inductively Coupled Plasma-Atomic Emission spectrometry 2002 Doctor of Science, Analytical Chemistry, Korea University, Seoul, Korea Dissertation: Surface Modification and Characterization of Various Polymers 1997-2001Researcher, Basic Science Institute, Korea University, Seoul, Korea 1997- 2001 Part time lecturer, Dept. of Chemistry, Korea University, Seoul, Korea 2002 Post-Doctorial Research Fellow, Korea Institute of Science & Technology, Seoul, Korea 2002-2003 Post-Doctorial Research Fellow, College of chemistry, University of California at Berkeley, CA, USA 2003-present Principal Researcher, Korea Institute of Machinery & Materials, Daejeon, Korea 2005-2009 Adjunct Professor, Medical School, Korea University, Seoul, Korea 2008 Visiting Scholar, Material Science & Engineering, University of Michigan, Ann Arbor, MI, USA 2011-2017 Professor, Department of Nanobiotechnology, University of Science & Technology, Daejeon, Korea 2012-2016 Adjunct Professor, Department of Mechatronics engineering, Korea University, Daejeon, Korea Award: 2005 First Outstanding Young Researcher Award of KIMM (Korea Institute of Machinery & Materials) 2008 Best Paper Nominee Award of ISNIT (International Symposium of Natured-Inspired Technology) 2008

2012 Award from chair of National Research Council of Science and Technology 2014 Prize from Prime Minister of KOREA Goverment 2015 Bio Engineering Award of KSME( The Korea Society of Mechanical Engineers) 2016 Award from Korea Foundation for the Advancement of Science and Creativity in NanoKorea 2016

Recent Publications

• S.-C. Park, N. Kim, S. Ji, H. Lim*, “Fabrication and characterization of moth-eye mimicking nanostructured convex lens”, Microelectronic Engineering, 158, 35-40 (2016).

• H.-W. Park, S. Ji, D. S. Herdini, H. Lim*, J.-S. Park, K.-B. Chung*, “Antireflective conducting nanostructures with an atomic layer deposited an AlZnO layer on a transparent substrate”, Applied Surface Science, 357, 2385-2390 (2015).

• I.D. Jung, M.C. Lee, H. Lim, E. Smela, J.S. Ko*, “Microbumpers maintain superhydrophobicity of nanostructured surfaces upon touch”, Applied Surface Science, 349, 705-714 (2015).

• J. Park, Y. Lee, J. Hong, Y. Lee, M. Ha, Y. Jung, H. Lim, S. Y. Kim, H. Ko*, “Tactile-Direction-Sensitive and Stretchable Electronic Skins Based on Human-Skin-Inspired Interlocked Microstructures”, ACS Nano, 8(12), 12020-12029 (2014).

• J. Kim, J.-H. Jeon, H.-J. Kim, H. Lim, I.-K. Oh*, “Durable and water-floatable ionic polymer actuator with hydrophobic and asymmetrically laser-scribed reduced graphene oxide paper electrodes”, ACS Nano, 8(3), 2986-2997 (2014).

• S. Ji, K.Song, T.-B. Nguyen, N. Kim, H. Lim*, “Optimal Moth Eye Nanostructures Array on Transparent Glass Towards Broadband Antireflection”, ACS Applied Materials & Interfaces, 5, 10731-10737 (2013).

• J. Park, J. Park, H. Lim*, H.-Y. Kim*, “Shape of a large drop on a rough hydrophobic surface”, Physics of Fluids, 25, 022102-022102-13 (2013)

27

Nature inspired nanosurfaces and beyond

Hyuneui Lim

Department of Nature-Inspired Nanoconvergence Systems, Nano Convergence and Manufacturing Systems Research Division,

Korea Institute of Machinery & Materials 156 Gajeongbuk-Ro, Yuseong-gu, Daejeon, 34103 KOREA,


Recently, the nature inspired functional surfaces have great attention in industrial and research fields. Nature inspired surfaces provide a lot of amazing properties such as water resistance of the strider leg, fog capture of the Namib beetle back, photonic crystal color of the morph-butterfly wing, antireflection of the moth eye, antifogging of the mosquito eye, dry adhesion of the gecko foot, low friction of the snack skin, etc. Very interesting feature of the functional surfaces in nature is the hierarchical structures with adapted chemical composition to maximize their role. Here, I will demonstrate the nature inspired nanostructured surfaces which exhibit the superhydrophobic and antireflective property, bactericidal property, dew collection property, and anti-icing property, etc. Even though we have a long way to go for realization of nature’s wisdom, these nanosurfaces will conduct the advanced function and sustainability in technology.

Figure 1. (a) Self-cleaning effect of a lotus leaf, (b )superhydrophobic glass, and (c) SEM image of nanostrcutres on glass surface

Figure 2. (a) Antireflective property, (b) bactericidal property and (c) anti-icing property of nanostructured glass surface

28

Dr. Chihiro URATA (Senior researcher)

Structural Materials Research Institute

National Institute of Advanced Industrial Science And Technology

(AIST)


• Telephone: +81 (0)52-736-7594 • Fax: +81 (0)52-736-7406 • Website: https://unit.aist.go.jp/smri/en/group/asichem.html • Address: 2266-98, Anagahora, Shimoshidami, Moriyama, Nagoya, Aichi 463-8560, Japan


2006 Graduated from Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University 2008 Master of Engineering, Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Waseda University 2011 Doctor of Engineering, Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Waseda University 2011-2015 Durable Material Group, Material Research Institute for Sustainable Development, National Institute of Advanced Industrial Science And Technology (AIST) 2015- Advanced Surface and Interface Chemistry Group, Structural Materials Research Institute, National Institute of Advanced Industrial Science And Technology (AIST)

Research focus

Mesoporous nanoparticles, inorganic-organic materials, surface treatment, anti-fouling coatings

Selected publications

• C. Urata, G. J. Dunderdale, M. W. England, A Hozumi, “Self-lubricating organogels (SLUGs) with exceptional syneresis-induced anti-sticking properties against viscous emulsions and ices” J. Mater. Chem. A 3(24), 12626-12630 (2015).

• C. Urata, B. Masheder, D. F. Cheng, D. F. Miranda, G. J. Dunderdale, T. Miyamae, A Hozumi, “Why Can Organic Liquids Move Easily on Smooth Alkyl-terminated Surfaces?” Langmuir 30 (14) 4049 (2014).

• C. Urata, B. Masheder, D. F. Cheng, A. Hozumi, “Unusual Dynamic Dewetting Behavior of Smooth Perfluorinated Hybrid Films: Potential Advantages over Conventional Textured and Liquid-Infused Perfluorinated Surfaces”, Langmuir 29 (40), 12472-12482 (2013).

• C. Urata, B. Masheder, D. F. Cheng, A. Hozumi, “A thermally stable, durable and temperature-dependent oleophobic surface of a polymethylsilsesquioxane film”, Chem. Commun. 49, 3318-3320 (2013).

• J. Park, C. Urata, B. Masheder, D. F. Cheng, A. Hozumi, “Long perfluoroalkyl chains are not required for dynamically oleophobic surfaces” Green Chem. 15 (1), 100-104 (2013).

• C. Urata, B. Masheder, D. F. Cheng, A. Hozumi “How To Reduce Resistance to Movement of Alkane Liquid Drops Across Tilted Surfaces Without Relying on Surface Roughening and Perfluorination”, Langmuir 28 (51), 17681-17689 (2013).

• D. F. Cheng, C. Urata, B. Masheder, A. Hozumi, “A Physical Approach To Specifically Improve the Mobility of Alkane Liquid Drops”, J. Am. Chem. Soc. 134 (24), 10191-10199 (2012).

• D. F. Cheng, C. Urata, M. Yagihashi, A. Hozumi, “A Statically Oleophilic but Dynamically Oleophobic Smooth Nonperfluorinated Surface”, Angew. Chem. Int. Ed.124 (12), 3010-3013 (2012).

• C. Urata, D. F. Cheng, B. Masheder, A. Hozumi, “Smooth, transparent and nonperfluorinated surfaces exhibiting unusual contact angle behavior toward organic liquids”, RSC Advances 2 (26), 9805-9808 (2012).

• C. Urata, H. Yamada, R. Wakabayashi, Y. Aoyama, S. Hirosawa, S. Arai, S. Takeoka, Y. Yamauchi, K. Kuroda, “Aqueous Colloidal Mesoporous Nanoparticles with Ethenylene-Bridged Silsesquioxane Frameworks”, J. Am. Chem. Soc., 2011, 133, 8102.

29

Anti-sticking properties of self-lubricating organogels (SLUGs)

inspired by slug's skin

Chihiro Urata1, Gary Dunderdale1, Matt England1, and Atsushi Hozumi*1 1 National Institute of Advanced Industrial Science and Technology (AIST)

2266-98, Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya 463-8560, Japan Corresponding author: [email protected]

Keywords: bio-inspired surfaces, organogel, secretion, syneresis, anti-stick prperties

Functional coatings with outstanding surface properties, such as liquid-repellency and low-friction/adhesion, have been commonly prepared by combining textured surfaces with long-chain perfluorinated compounds [1]. However, the chemical and physical effects of the LPFCs on human health and environment have been viewed lately with suspicion [2]. In addition, once such artificial surfaces are physically and chemically de-graded, they permanently lose their surface properties. In contrast, some living things sustain their surface properties through secretion of waxes or mucus. Here, we report on novel coatings inspired by such biologi-cal metabolism [3]. To realize long-lasting surface properties, we have particularly focused on the syneretic phenomenon of organogels, which were prepared by cross-linking reaction of 2 types of silicones under Pt catalyst, and several guest organic fluids (Scheme 1). As compatibil-ity between guest fluids and polymer matrixes (cross-linked polydi-methylsiloxane) is decreased to a certain critical point which is in-duced by the chemical and/or physical effects, the guest liquids be-gins to gradually leach out to the outmost organogel surface. Thanks to this self-lubricating property, adhesion of various objects was ef-fectively reduced, resulting in the anti-sticking properties. In addition, by using a reactive organic fluids, nano/micro-architectures showing superhydrophobicity were spontaneously formed on the upmost sur-face of organogel.

We first confirmed syneresis of guest fluids from the organogels and their anti-sticking surface properties. Viscous emulsions flowed on the syneretic or-ganogel surface more freely than that of non-syneretic organogel surface (Figures A and B). For the purpose of anti-icing applications, we tuned the critical incom-patibility point of our organogels, which exhibit reversible thermo-responsive se-cretion nature (Figure C). In this case, the syneresis gradually begins when the tem-perature is cooled (< 0°C) and the synere-sis fluids returns back into the organogel again by heating to room temperature. Thanks to this smart surface property, an ice-pillar formed on the organogel at -15°C easily slid off without any external force. Moreover, we have successfully demonstrated regeneration of superhydrophobicity artificially mimicking lotus leaves using n-octadecyltrichlorosilane as an active guest fluids (Figure D and E). Our strategy, established here, undoubt-edly shows great potential for application in dynamic, multifunctional, and self-recovering coatings.

References

1. T.-S. Wong, T. Sun, L. Feng and J. Aizenberg, MRS Bull., 38, 366 (2013). 2. Y. Zushi, J. N. Hogarh, S. Masunaga, Clean Technol. Environ. Policy, 14, 9 (2012). 3. C. Urata, G. J. Dunderdale, M. England, and A. Hozumi, J. Mater. Chem. A., 3, 12626 (2015).

Scheme1. Conceptual image of this study.

Figure. Organogels and their surface properties. Anti-stick behavior of viscous liquids (mayonnaise, liquid glue, ketchup, honey, and worcester source) on (A) a syneretic and (B) a non-syneretic organogel sheets. (C) Sliding motion of an ice-pillar at -15 °C on the thermo-responsive organogel coated petri dish. (D) Sponta-neously formed superhydrophobic surface on the organogel. (Inset images are a water droplet on the organogel surface and SEM image of superhydrophobitized organogel). (E)Cross-sections of the organogels after the superhydrophobization and regeneration of the superhydrophobic surface on the cross-sectional surface).

30

Dr. Animangsu GHATAK, Prof. Department of Chemical Engineering, Indian Institute of Technology Kanpur

• E-mail: [email protected] • Telephone: +91 (0)512-259-7146 • Fax: +81 (0)22-217-8577 • Website: http://home.iitk.ac.in/~aghatak/ • Address: Department of Chemical Engineering, Indian Institute

of Technology Kanpur, India, UP 208016


1994 B. Tech., IIT Kharagpur 1998 M. Tech., IIT Kanpur 2003 PhD, Lehigh University, PA 2003-2004 Post Doctoral Research at Cambridge University, UK & Harvard University 2004-2009 Assistant Professor, Dept. of Chemical Engg., IIT Kanpur 2009-2014 Associate Professor, Dept. of Chemical Engg. IIT Kanpur 2011-2012 Visiting Scientist, Leibniz-Institute for New Materials, Saarbrucken & Max Planck Institute for Polymer Chemistry, Mainz, Germany 2014-present Professor, Dept. of Chemical Engg. IIT Kanpur 2016-present Associate Dean Industrial Collaboration, IIT Kanpur, Award 2006 Young Engineer Award of the Indian National Academy of Engineering.

Recent Publications

• Sengupta Ghatak, A., Ghatak, A. Precipitant-less Crystallization of Protein Molecules Induced by High Surface Potential, Cryst. Grow. Des., 2016, Vol 16, pp 5323-5329.

• Mondal, S., Phukan, M. and Ghatak, A., Estimation of solid-liquid interfacial tension using curved surface of a soft solid. Proc. Nat. Acad. Sci., 2015, Vol 112(41), pp 12563-12568.

• Chaudhury, M. K., Chakrabarti, A. and Ghatak, A. Adhesion-induced instabilities and pattern formation in thin films of elastomers and gels. Eur. Phys. J. E, 2015, Vol 38(7), pp 1-26.

• Mondal, S. and Ghatak, A. Rolling of an elastomeric cylinder: a Marangoni like effect in solid. Extreme Mechanics Letters, 2015, Vol 3, pp 24-35.

• Das, S., Laha, S. and Ghatak, A. Co-operative effect of closely spaced intruding objects puncturing into a soft solid. Soft Matter, 2014, Vol 10(32), pp 6059-6067.

• Ghatak, A. Peeling off an adhesive layer with spatially varying topography and shear modulus. Physical Review E, 2014, Vol 89, pp 032407-1--032407-9.

• Majumder, A., Mondal, S., Tiwari, A. K., Ghatak, A. and Sharma, A., Direction specific adhesion induced by subsurface liquid filled microchannels, Soft Matter, 2012, Vol 8, pp. 3228-3233.

• Arul, E. P. and Ghatak, A. Control of adhesion via internally pressurized subsurface microchannels, Langmuir, 2012, Vol 28(9), pp. 4339-4345.

• Arul Ed. P. and Ghatak, A. Bio-inspired design of a hierarchically structured adhesive. Langmuir, 2009, Vol. 25(1), pp. 611-617.

• Majumder, A., Ghatak, A. and Sharma, A., Microfluidic adhesion induced by sub-surface micro-structures. Science, 2007, Vol. 318, pp. 258-261.

• Ghatak A., Mahadevan, L., Chung, J. Y., Chaudhury, M. K. and Shenoy, V. Peeling from a biomimetically patterned thin elastic film Proceedings of Royal Society, London, Ser. A. 2004, Vol. 460, pp. 2725-2735.

31

Bio-inspired Adhesion and Locomotion of Soft Objects

Animangsu Ghatak

Department of Chemical Engineering Indian Institute of Technology Kanpur

India 208016 Email: [email protected]

While most man-made adhesives are uniformly thin layer of glue, natural adhesives at the feet of different arthropods and vertebrates are highly patterned and hierarchically structured. These adhesives show strong adhesion on variety of surfaces as well as excellent reusability. These adhesives are not susceptible to contamination by dirt and they are self cleaning. It is now known that the patterns on the surface of these adhesive layers have significant effect on their adhesion. In addition these naturally occurring adhesives also have sub-surface structures like the network of fluid filled micro-vessels and air pockets. Inspired by these natural adhesive materials, we have generated model adhesives decorated with micro-pattern on surface which show that crack propagates on such adhesive surface with intermediate arrests and initiation, in contrast to continuous propagation on smooth adhesive surfaces. We have extended these ideas by generating sub-surface fluid filled microstructures within the adhesive layers which too show significant enhancement in adhesion in peel experiments. In particular, we have shown that when these embedded microchannels are filled with a wetting liquid, it alters the solid-liquid interfacial tension leading to bulging deformation of the adhesive in the vicinity of the channel. In addition, the effective compliance of the adhesive too becomes different. We have used the coupled effect of spatially varying topography and deformability of the adhesive to generate strong adhesion, adhesive strength varied over large range, direction specific adhesion, load dependent adhesion and adhesive with ability to absorb shock and adhesive with very weak adhesion, all accomplished without altering the rheology or chemical character of the adhesive material. In adhesion to adhesion, interaction of soft solid and liquid is interesting also for limbless locomotion. We have explored this possibility by enabling an elastomeric cylinder to roll on a substrate by release of small quantity of a solvent like chloroform and toluene which swells the crosslinked network of the elastomer. By creating an asymmetric effect via differential swelling of the cylinder, we have shown that it is possible to drive the cylinder even up an inclined plane. In fact, its velocity increases, within a range of angle of inclination. The rolling motion can be used to pull and push tiny objects.

32

Dr. Takuya OHZONO, Group Leader

Research Institute for Sustainable Chemistry, National

Institute of Advanced Industrial Science and Technology

(AIST)


• Telephone: +81 (0)29-861-2865 • Fax: +81 (0)29-861-0000 • Website: https://unit.aist.go.jp/ischem/en/en/teams/index.html • Address: Cntr.5 1-1-1 Higashi, Tsukuba 305-8565, Japan


1995 Graduated from School of Bioscience and Biotechnology, Tokyo Institute of Technology 1997 Master of Engineering, School of Bioscience and Biotechnology, Tokyo Institute of Technology 2000 Doctor of Engineering, Tokyo Institute of Technology

2000-2001 Postdoctoral Researcher, Mechanical Science and Engineering Lab., Surface properties group, National Institute of Standards and Technology (NIST), US

2001-2007 Researcher, Frontier Research System, RIKEN Institute, Japan 2007-2010 Researcher, Nanotechnology Research Institute (Kansai), National Institute of Advanced

Industrial Science and Technology (AIST), Japan 2010-2014 Group Leader, Soft Mechanics Group, Nanosystem Research Institute (NRI), AIST, Japan 2014-2015 R&D Division, Industrial Science and Technology Policy and Environment Bureau, Ministry of

Economy (METI), Japan 2015- Group Leader, Dynamic Functional Materials Group, Research Institute for Sustainable

Chemistry, AIST, Japan Award: 2013 Honda Memorial Young Researcher Award.

Recent Publications

• K. Suzuki, T. Ohzono, “Wrinkles on a Textile-Embedded Elastomer Surface with Greatly Variable Friction” Soft Matter 12, 6176, 2016.

• K. Suzuki, Y. Hirai, M. Shimomura, T. Ohzono, “Tunable Friction Through Microwrinkle Formation on a Reinforced Rubber Surface” Tribol Lett 60, 24, 2015.

• T. Ohzono, T. Yamamoto, J. Fukuda, “Liquid Crystalline Chirality Balance for Vapours” Nat. Commun. 5, 3755, 2014.

• K. Suzuki, Y. Hirai, T. Ohzono, “Oscillating Friction on Shape-Tunable Wrinkles” ACS Appl. Mater. Interface, 6, 10121, 2014.

• T. Ohzono, Y. Hirai, K. Suzuki, M. Shimomura, N. Uchida, “Reinforced Shape-Tunable Microwrinkles Formed on a Porous-Film-Embedded Elastomer Surface”, Soft Matter, 10, 7165, 2014.

• T. Ohzono, K. Suzuki, T. Yamaguchi, N. Fukuda “Tunable Optical Diffuser Based on Deformable Wrinkles” Adv. Opt. Mater. 1 374, 2013.

• T. Ohzono, Y. Takenaka, J. Fukuda, “Focal conics in a smectic-A liquid crystal in microwrinkle grooves” Soft Matter 8, 6438, 2012.

• T. Ohzono, J. Fukuda, “Zigzag line defects and manipulation of colloids in a nematic liquid crystal in microwrinkle grooves” Nat. Commun., 3, 701, 2012.

• T. Ohzono, H. Monobe, “Microwrinkles: Shape-tunability and applications” J. Colloid. Interface. Sci., 368, 1, 2012.

• H. Monobe, T. Ohzono, H. Akiyama, K. Sumaru, Y. Shimizu, “Manipulation of Liquid Filaments on Photoresponsive Microwrinkles” ACS Appl. Mater. Interface, 4, 2212, 2012.

• T. Ohzono, H. Monobe, K. Shiokawa, M. Fujiwara, Y. Shimizu, “Shaping liquid on a micrometre scale using microwrinkles as deformable open channel capillaries” Soft Matter, 5, 4658, 2009.

33

Sliding Friction on Shape-Tunable Wrinkles

Takuya Ohzonoa*and Kosuke Suzukia,(Present: Kobe Univ.)

aResearch Institute for Sustainable Chemistry, AIST


The excellent performance of soft-microstructures on living surfaces in terms of their adhesion and friction has attracted considerable attention, as these are key elements in many tribological applications. The enhanced adhesion and reversible control of gripping in living surfaces are attributed to the deformation of the soft-microstructures in the attachment surface (e.g., seta, spatula, hexagonal cell, and fingerprint). Herein, we consider a system, in which a soft-microstructure is dynamically tunable, to further explore the possibility of dynamic controlling of, e.g., friction, adhesion, and lubrication. As a model system of the shape-tunable soft-microstructures found in living systems, the buckling-induced wrinkles are attracted attention, which is generated on a compressed elastomer having a hard top layer. The wrinkles show a wide variety of periodically-undulated structures, depending on the material, while also allowing the alignment direction of the grooves (or crests) and the sinusoidal shape to be varied.

On this point of view here we show recent results of friction experiments on two different wrinkled surfaces; wrinkles on a polyimide (PI) film atatched to a polydimethylsiloxane (PDMS) elastomer with the wrinkle wavelength of hundreds of micrometers: PI-system [1], and those on a PDMS surface, underneath which a microporous film is embedded to harden the surface effectively, with the wrinkle wavelength of tens of micrometers: PDMS-system [2,3]. In both cases the anisotropic wrinkles can be induced by adding strain and the amplitude are tunable in a certain range. The main difference of two experimental systems is the scale of the wrinkle periodicity. Using an indentor for the friction tests as the counter slider having a round shape with the diameter of 1 mm for PI-system or of 5 mm for PDMS one, different frictional results are expected on two wrinkle systems because the size of the indentor is comparable to that of the wrinkle periodicity for the PI wrinkles and is much larger for the PDMS wrinkles.

The main results of the normal-load-dependent average friction forces on the wrinkled and the flat surfaces are shown in Figure 1. On the PI surface the friction force increases (~+20%) when the surface is wrinkled (Figure 1a). On the other hand, the friction decreases on the PDMS surface (~-20%) when the surface is wrinkled (Figure 1b). On the PI wrinkles, the indenter tip can be stacked between the crests of wrinkles during the sliding and expect the resistance from one crest ahead to lay over it. This may be explained by so-called Coulombic interlocking and/or the elastic plowing mechanism [1]. On the PDMS wrinkles, however, the indenter must make contacts with multiple wrinkle crests. Consequently, the total area of contacts decreases and the stick-slip event becomes easy to occur, leading to reduction of friction through the Bowden-Tabor’s adhesive friction model [3]. Recently, we also found that wrinkles on a textile-embeded PDMS surface greatly reduce the contact area resulting in fairly reduced friction [4]. We believe that these results will be helpful to design the tribologically-tunable surfaces of soft composite materials toward engineering applications.

We thank KAKENHI (Grant No. 24120003) for their supports. [1] K. Suzuki, Y. Hirai, T. Ohzono, ACS Appl. Mater. Interface, 6, 10121, 2014. [2] T. Ohzono, Y. Hirai, K. Suzuki, M. Shimomura, N. Uchida, Soft Matter, 10, 7165, 2014. [3] K. Suzuki, Y. Hirai, M. Shimomura, T. Ohzono, Tribol. Lett. 2015. [4] K. Suzuki, T. Ohzono, Soft Matter 2016. DOI: 10.1039/C6SM00728G (Open)

Figure 1. Average friction force Fav vs. normal load P on wrinkled and unrwrinkled (flat) surfaces. (a) PI-surface. (b) PDMS-surface.

34

X-ray CT Observation of Living Things

Takashi Kushibiki

Non-Destructive Inspection Business Unit, Analytical & Measuring Instruments Division,

Shimadzu Corporation, 1, Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto 604-8511, Japan,

E-mail:[email protected] Recently, developing and manufacturing products based on biomimetics has attracted further attention with the rapid progress of nanotechnology. In particular, X-ray CT systems that are capable of observing internal structures non-destructively are especially useful in observing soft tissue and areas that are difficult to observe using an optical microscope. This lecture presents several examples of X-ray capabilities using insects and fish, as seen below. 1) Structural observations of soft tissues 2) Observations of parasites existing inside insects 3) Structural observation of an internal skeleton of a fish 4) Structural observation of a fish and molding using a 3D printer 5) Observation of an insect encased in amber

Figure1. VR images of a horned beetle

Figure 4. VR image of scales on a shark

Figure 2. MPR images of a wasp where parasites exist

Figure 5. A scale of the shark which is molded by using a 3D printer

Figure3. VR images of the head of a piranha

Figure 6. VR image of a Staphylinidae encased in amber

35

Prof. Thomas J. McCarthy

Polymer Science and Engineering Department University of Massachusetts


• Telephone: +1 (413) 577-1512 • Fax: +1 (413) 577-1510 • Website: http://www.pse.umass.edu/tmccarthy/siteindex.html • Address: 120 Governors Drive, Amherst, MA 01003 U.S.A.


University of Massachusetts, Amherst, Chemistry, B.S. 1978 Massachusetts Institute of Technology, Organic Chemistry, Ph.D. 1982

Assistant Professor, University of Massachusetts, Amherst, June 1982 - August 1986 Associate Professor, University of Massachusetts, Amherst, September 1986 - August 1991 Professor, University of Massachusetts, Amherst, September 1991 - present Head, Polymer Science and Engineering, July 2000 - October 2003 Guest Professor, Changchun Institute of Applied Chemistry, September 2005 – present Visiting Professor, Kyushu University, October 2014 - December 2014

Notable Awards

Society of Polymer Science, Japan, "SPSJ International Award" (2015) ACS Colloids and Surfaces Division, Langmuir Lecture (2006) Arthur K. Doolittle Award (1996) NSF Presidential Young Investigator Award (1986-1991) National Science Foundation Graduate Fellow (1978-1981)

Recent Publications

• S. Fujii, T. J. McCarthy, "Sulfone-Containing Methacrylate Homopolymers: Wetting and Thermal Properties", Langmuir 2016, 32, 765-771.

• L. Wang, T. J. McCarthy, "Covalently Attached Liquids: Instant Omniphobic Surfaces with Unprecedented Repellency", Angew. Chem. Int. Ed. 2016, 55, 244-248.

• L. Wang, T. J. McCarthy, "Capillary Bridge - Derived Particles with Negative Gaussian Curvature", Proc. Natl. Acad. Sci. U. S. A. 2015, 112, 2664-2669.

• Y. Wang, T. J. McCarthy, "Dip-Coating Deposition on Chemically Patterned Surfaces: A Mechanistic Analysis and Comparison with Topographically Patterned Surfaces", Langmuir 2014, 30, 2419-2428.

• L. Wang, T. J. McCarthy, "Shear Distortion and Failure of Capillary Bridges. Wetting Information Beyond Contact Angle Analysis", Langmuir 2013, 29, 7776-7781.

• P. Zheng, T. J. McCarthy, "A Surprise from 1954: Siloxane Equilibration Is a Simple, Robust, and Obvious Polymer Self-Healing Mechanism", J. Am. Chem. Soc. 2012, 134, 2024-2027.

• J. W. Krumpfer, T. J. McCarthy, "Dip-Coating Crystallization on a Superhydrophobic Surface: A Million Mounted Crystals in a 1 cm2 Array", J. Am. Chem. Soc. 2011, 133, 5764-5766.

• P. Bian, T. J. McCarthy, “Polymerization of Monomer-Based Ferrofluids”, Langmuir 2010, 26, 6145-6148.

• A. Hozumi, T. J. McCarthy, “Ultralyophobic Oxidized Aluminum Surfaces Exhibiting Negligible Contact Angle Hysteresis”, Langmuir 2010, 26, 2567-2573.

36

Water and its Affinity to Hydrophobic Surfaces

Pei Bian, Ting Dong, Minchao Zhang and Thomas J. McCarthy*

Polymer Science and Engineering Department University of Massachusetts

Amherst, Massachusetts 01003, U.S.A. Email: [email protected]

The words, "hydrophobic" and "hydrophilic" are used in common everyday language as well as in technical publications; in fact, one of them is used in the title of this abstract. Scientists and other technical personnel often try to quantify surface properties using these words, sometimes with prefixes such as "super", "ultra", or even "perfectly." Several topics will be presented in this talk that may include: (1) A discussion about water and its aggregation state in different media and at interfaces, (2) The evaporation/condensation equilibrium and how topographic features near to but on either side of the Concus-Finn Inequality can drive the equilibrium in either direction, (3) An alternative explanation of the "Cheerios Effect" that uses floating objects of variable density that do not exhibit liquid/solid/vapor contact lines, (4) The "bouncing" of water drops from "superhydrophobic" surfaces that contain defects of controlled size, shape and orientation (Figure 1 shows a frame from a high speed videotape recording of a drop that has reflected from a surface containing two defects), (5) The sorption and permeation of water into and through the "hydrophobic" material, PDMS (Figure 2 shows a photograph of two membrane-capped (exact same composition, but different thickness) vials at the same temperature.

Figure 1. A frame of a high speed videotape of a water drop that was bounced on a surface of patterned wettability.

Figure 2. Two silicone membranes that enclose vials containing water (liquid and vapor at the same temperature (and vapor pressure. The membrane on the left (a) is thinner than the one on the right (b) and allows permeation to occur fast enough to prevent condensation.

37

Dr. Yuji Hirai, Lecture

Chitose Institute of Science and Technology


• Telephone: +81 (0)123-27-6068 • Fax: +81 (0)123-27-6068 • Address: 758-65, Bibi, Chitose 066-8655, Japan


2006 Graduated from Department of chemistry, Faculty of Science, Hokkaido University 2008 Master of Science, Graduate School of Science, Hokkaido University 2010 Doctor of Engineering, Tohoku University 2010-2013 Assistant Professor, IMRAM, Tohoku University 2013- Lecture, Chitose Institute of Science and Technology

Recent Publications

• T. Tayagaki, Y. Hoshi, Y. Hirai, Y. Matsuo, and N. Usami, “Modulated surface nanostructures for enhanced light trapping and reduced surface reflection of crystalline silicon solar cells”, Japanese Journal of Applied Physics, 55, 052302 (2016)

• K. Suzuki, Y. Hirai, M. Shimomura, T. Ohzono, “Tunable friction through microwrinkle formation on a reinforced rubber surface”, Tribology Letters, 60, 1-6 (2015)

• Y. Hirai, N. Yanagi, and M. Shimomura, “Preparations of the Artificial Plastron Device by Self-Organized Honeycomb-Patterned Films”, e-J. Surf. Sci. Nanotech., 13, 90-92 (2015)

• Y HIRAI, M. NATSUISAKA, T. MASHIKO, M. KANAHARA, Y. SAITO, H. YABU, M. SHIMOMURA and K. TSUJII, “Effect of Microgravity on the Formation of Honeycomb patterned Films by Dissipative Processes”, International Journal of Microgravity Science Application, 31, 3-10 (2014)

• T. Ohzono, Y. Hirai, K. Suzuki, M. Shimomura and N. Uchida, “Reinforced shape-tunable microwrinkles formed on a porous-film-embedded elastomer surface”, Soft Matter, 10, 7165-7169 (2014)

• K. Suzuki, Y. Hirai, and T. Ohzono, “Oscillating Friction on Shape-Tunable Wrinkles”, ACS Applied Materials & Interface, 6, 10121-10131 (2014)

• D. Ishii, H. Horiguchi, Y. Hirai, H. Yabu, Y. Matsuo, K. Ijiro, K. Tsujii, T. Shimozawa, T. Hariyama, M. Shimomura, “Water transport mechanism through open capillaries analyzed by direct surface modifications on biological surfaces”, Scientific Reports, 3, 3024 (2013)

• H. Yabu, Y. Saito, Y. Hirai, S. Fujinami, K. Nakajima, T. Nishi, M. Shimomura, “Self-assembled porous templates allow pattern transfer to poly(dimethyl siloxane) sheets through surface wrinkling”, Polymer Journal, 44(6), 573-578 (2012)

38

AFM friction measurements of the insect scale surface

Yuji Hirai

Chitose Institute of Science and Technology, E-mail:[email protected]

Friction and wearing are great subjects for saving energy and mechanical parts. Especially, reducing surface frictions by surface nano and micro textures attracts much attention due to their possibilities in recent years(1). Friction and wearing are also problems for living animals, such as insects(2). Therefore, we focused on Firebrat, which live in narrow space, for learning how to reduce surface frictions, because their surfaces probably evolved for protections from wearing over a period of many years. In this report, we observed body surfaces of firebrats by using field emission scanning electron microscope (FE-SEM), and measured surface frictions by using colloidal-probe atomic force microscope (AFM) for investigations of relationship between their surfaces and frictions. Fig. 1(a-c) shows FE-SEM images of a firebrat. They are covered by scales with periodic groove structures over the whole body. Although the lengths of the groove periods were almost uniform within each scale, they seemed to vary between scales on the anterior regions of the body, particularly around the head (Fig. 1(e)). Fig. 2 shows topographies and friction force images obtained by AFM. Comparing friction force images obtained by 3 types of different diameter colloidal probes, friction was higher in case of same size of a groove period and a diameter of colloidal probe (2.0 µm diameter) at the bottom of grooves. These results suggest firebrat scales avoid high friction with specific structures by their irregular periodic groove structures. Detail analysis will be discussed. (1)Wang, X., Kato, K., Adachi, K. & Aizawa, K., Tribology International, 36, 189-197 (2003). (2)Varenberg, M. & Gorb, S. N., Advanced Materials, 21, 483-486 (2009).

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Fig. 2 Topographies and friction force images of firebrat scale surfaces. Scanning areas were

15 x 15 µm.

Fig. 1 (a-c) FE-SEM images of firebrat scale surfaces. (d) A photograph of a firebrat. (e) A graph

of groove periods and their standard deviations.

39

Dr. KRISHNACHARYA, Prof.

DEPARTMENT OF PHYSICS

INDIAN INSTITUTE OF TECHNOLOGY KANPUR


• Telephone: +91 (0)512-259-7968 • Fax: +91 (0)512-259-0914 • Website: http://www.iitk.ac.in/new/dr-krishnacharya • Address: Southern Lab - 201, IIT Kanpur, Kanpur - 208016, INDIA


1998 - 2000 Master of Science in Physics from Department of Physics, Banaras Hindu University, India 2001 - 2003 Master of Technology from Department of Physics, IIT Delhi, India 2004 - 2007 Doctor of Philosophy from Max-Planck Institute, Gottingen, Germany 2007 - 2009 Postdoctoral Fellow at University of Pennsylvania, Philadelphia, USA 2009 - Assistant Professor, Department of Physics, IIT Kanpur, India Award: 2010 Department of Atomic Energy (DAE) Young Scientist Research Award, India

Recent Publications

• Krishnacharya, J. Zhou and S. Yang “Tunable open-channel microfluidics on soft poly(dimethylsiloxane) (PDMS) substrates with sinusoidal grooves” Langmuir 25, 12794 (2009)

• S. Yang, Krishnacharya and P.-C. Lin “Harnessing surface wrinkle patterns in soft matter” Advanced Functional Materials 20, 2550 (2010)

• S. Vajpayee, Krishnacharya, S. Yang, C.-Y. Hui and A. Jagota “Adhesion selectivity using rippled surfaces” Advanced Functional Materials 21, 547 (2011)

• C. Jin, Krishnacharya, S. Vajpayee, S. Yang, A. Jagota and C.-Y. Hui "Adhesive contact between a rippled elastic surface and a rigid spherical indenter: from partial to full contact" Soft Matter 7, 10728 (2011)

• J. Barman, D. Swain, B. M. Law, R. Seemann, S. Herminghaus and Krishnacharya "Electrowetting Actuated Microfluidic Transport in Surface Grooves with Triangular Cross Section" Langmuir 31, 1231 (2015)

• J. Barman, A. K. Nagarajan and Krishnacharya "Controlled electro-coalescence/non-coalescence on lubricating fluid infused slippery surfaces" RSC Advances 5, 105524 (2015)

• J. Barman, A. K. Nagarajan and Krishnacharya "Electrowetting on dielectrics on lubricating fluid based slippery surfaces with negligible hysteresis" J. Adhes. Sci. Technol. (2016) (DOI: 10.1080/01694243.2016.1205245)

• R. Pant, P. K. Roy, A. K. Nagarajan and Krishnacharya "Slipperiness and stability of hydrophilic surfaces coated with a lubricating fluid" RSC Advances 6, 15002 (2016)

• P. K. Roy, R. Pant, A. K. Nagarajan and Krishnacharya "Mechanically Tunable Slippery Behavior on Soft Poly(dimethylsiloxane)-Based Anisotropic Wrinkles Infused with Lubricating Fluid" Langmuir 32, 5738 (2016)

• S. K. Garg, D. P. Dutta, J. Ghatak, Krishnacharya, D. Kanjilal, T. Som " Tunable wettability of Si through surface energy engineering by nanopatterning" RSC Advances 6, 48550 (2016)

• R. Pant, S. K. Ujjain, A. K. Nagarajan and Krishnacharya "Enhanced Slippery Behavior and Stability of Lubricating Fluid Infused Nanostructured Surfaces" accepted in Eur. Phys. J.: Appl. Phys. (2016)

40

Mechanically Tunable Adhesion/Friction of PDMS wrinkles

Pritam Kumar Roy, Reeta Pant and Krishnacharya*

Department of Physics, Indian Institute of Technology Kanpur Kanpur - 208016, India E-mail: [email protected]

Polydimethylsiloxane (PDMS) is one of the most important polymer to fabricate structures showing mechanically tunable properties. Mechanically tunable surface wrinkles can be fabricated on PDMS substrates by exploiting 1D bucking instability. Wrinkles dimensions can very precisely be controlled, from hundreds of nanometers upto hundreds of microns by manipulating various experimental parameters. Due to their mechanically tunable morphology, the wrinkles are found very useful in may surface or interfacial applications including adhesion, friction and slip. In this presentation, I will demonstrate in details how the mechanical tunable morphology of winkle can be used to result into reversibly tunable adhesion, friction and slippage.

41

Dr. Syuji FUJII, A/Prof.

Department of Applied Chemistry

Faculty of Engineering

Osaka Institute of Technology


• Telephone: +81 (0)6-6954-4274 • Fax: +81 (0)6-6957-2135 • Website: http://www.oit.ac.jp/chem/cherry/4_lab/ • Address: 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan


1998 Graduated from Department of Chemical Science and Engineering, Faculty of Engineering, Kobe University 2000 Master of Engineering, Graduate School of Science and Technology, Kobe University 2003 Doctor of Engineering, Graduate School of Science and Technology, Kobe University 2003 Scientific Researcher, Faculty of Engineering, Kobe University 2003-2004 Research Fellow of School of Life Sciences, University of Sussex, UK 2004-2006 Research Associate of Department of Chemistry, University of Sheffield, UK 2006-2013 Lecturer, Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology 2013- Associate Professor, Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology 2013 Part-time Lecturer, Graduate School of Engineering, Kyushu Institute of Technology 2014 Part-time Lecturer, Institute for Materials Chemistry and Engineering, Kyushu University Award: 2013 Incentive Award of Division of Colloid and Surface Chemistry, CSJ 2012 Nature Industry Award, OSTEC 2012 Young Scientist Award, Kansai Division, The Society of Polymer Science, Japan

Recent Publications

• S. Fujii, S. Yusa, Y. Nakamura "Stimuli-responsive liquid marbles: controlling structure, shape, stability and motion" Adv. Funct. Mater. (2016) in press

• M. Paven, H. Mayama, T. Sekido, H.-J. Butt, Y. Nakamura, S. Fujii “Light-driven delivery and release of materials using liquid marbles” Adv. Funct. Mater. 26, 3199–3206 (2016)

• S. Fujii, S. Sawada, S. Nakayama, M. Kappl, K. Ueno, K. Shitajima, H.-J. Butt, Y. Nakamura “Pressure-Sensitive Adhesive Powder” Mater. Horiz. 3, 47-52 (2016)

• S. Nakayama, S. Hamasaki, K. Ueno, M. Mochizuki, S. Yusa, Y. Nakamura, S. Fujii “Foams Stabilized with Solid Particles Carrying Stimuli-responsive Polymer Hairs” Soft Matter 12, 4794-4804 (2016)

• S. Fujii, K. Akiyama, S. Nakayama, S. Hamasaki, S. Yusa, Y. Nakamura “pH- and temperature-responsive aqueous foams stabilized by hairy latex particles” Soft Matter 11 (3), 572-579 (2015)

• K. Ueno, G. Bournival, E. J. Wanless, S. Nakayama, E. C. Giakoumatos, Y. Nakamura, S. Fujii “Liquid Marble and Water Droplet Interactions and Stability” Soft Matter 11, 7728-7738 (2015)

• S. Nakayama, S. Yusa, Y. Nakamura, S. Fujii “Aqueous Foams Stabilized by Temperature-Sensitive Hairy Polymer Particles” Soft Matter 11, 9099-9106 (2015)

• K. Ueno, S. Hamasaki, E. J. Wanless, Y. Nakamura, S. Fujii "Microcapsules fabricated from liquid marbles stabilized with latex particles" Langmuir 30(11), 3051–3059 (2014)

• S. Fujii, H. Hamasaki, H. Abe, S. Yamanaka, A. Ohtaka, E. Nakamura, Y. Nakamura “One-step synthesis of magnetic iron-conducting polymer-palladium ternary nanocomposite microspheres and their use as recyclable catalyst” J. Mater. Chem. A. 1(14), 4427-4430 (2013)

• S. Fujii, Y. Yokoyama, Y. Miyanari, T. Shiono, M. Ito, S. Yusa, Y. Nakamura “Micrometer-sized gold-silica Janus particles as particulate emulsifiers” Langmuir 29, 5457−5465 (2013).

• S. Fujii, M. Kappl, H.-J. Butt, T. Sugimoto, Y. Nakamura “Soft Janus colloidal crystal film” Angew. Chem. Int. Ed. 51, 9809-9813 (2012)

42

Particle stabilized soft dispersed systems as a platform towards adhesive materials

S. Fujii1*, S. Sawada1, S. Nakayama1, M. Kappl2, K. Ueno1, K. Shitajima1

H.-J. Butt2, Y. Nakamura1

1Department of Applied Chemistry, Faculty of Engineering Osaka Institute of Technology, Omiya, Asahi-ku, Osaka, 535-8585, Japan

2Polymer Physics Group, Max-Planck Institute for Polymer Research E-mail: [email protected]

Pressure-sensitive adhesives (PSAs) are viscoelastic polymer materials that display an instantaneous adhesion to solid surface via van der Waals force (without covalent bonding) upon application of a light contact pressures. PSAs are commonly applied in a form of a thin layer on a substrate or spray droplets. Liquid marbles, which are typically millimeter-sized liquid droplets stabilized by adsorbed relatively hydrophobic solid particles at gas-liquid interfaces. Using the liquid marble technology, it is possible to treat liquid as a non-sticky powder. Here, we propose dry “PSA powder”, which consists of sticky PSA core covered by hard particles shell and shows non-sticky character in its state and appears adhesion by prescribed shearing stress, fabricated based on liquid marble technique. Hydrophobic CaCO3 nanoparticles were used as a liquid marble stabilizer. Poly(n-

butyl acrylate) (PBA) particles were synthesized by soap-free emulsion polymerization with ammonium persulfate. Individual ‘liquid marbles’ were prepared by rolling an aqueous droplet of PBA latex over dried CaCO3 powder. The powder immediately coated the PBA latex droplet and rendered it both hydrophobic and non-wetting. The liquid marble shapes were near-spherical/oblong and the volume decreased keeping their shapes on time scales of several hours at 25 °C due to slow water evaporation. After drying, CaCO3 nanoparticle-coated PBA microspheres were obtained, which are also non-wetting (non-sticking) to any substrates. This non-sticking behavior indicates that soft PBA component is covered with hard CaCO3 nanoparticles and PBA does not contact with the substrates. Interestingly, tack property appeared after kneading the CaCO3 nanoparticle-coated PBA microspheres using fingers. The structure and adhesion properties will be presented.

Figure 1 � � Schematic representation of pressure-sensitive adhesion powder consisting of particles with soft sticky polymer core and hard nanoparticle shell morphology. After application of shearing stress, adhesion property appeared because of outflow of inner soft polymer from the hard particles shell. Digital images of such PSA materials are also shown. The PSA shows no adhesion in its original form and flows like a powder. Only after application of shear stress it shows its adhesion nature. Adhesion is induced by rapture of the nanoparticle coating on the powder and outflow of inner soft polymer.

43

Dr. KUROKAWA Takayuki

Faculty of Advanced Life Science Hokkaido University, Japan

Global Station for Soft Matter, GI-CoRE, Hokkaido University, Japan


• Telephone: +81 (0)11-706-9018 • Fax: +81 (0)11-706-9018 • Website: http://altair.sci.hokudai.ac.jp/g2/index_e.html • Address: Kita-ku Kita10 Nishi8 Sapporo, Hokkaido, Japan 060-0810 •


B.A. Science, 2000 Department of Biological Sciences, School of Science, Hokkaido University, Japan Master, Science, 2002 Division of Biological Sciences, Graduate School of Science, Hokkaido University, Japan Ph.D, Science, 2005 Division of Biological Sciences, Graduate School of Science, Hokkaido University, Japan 2006 – 2007 Post-doctoral fellow in Riken, Japan Created long-fibered amyloid, and analyzed morphology of amyloid fibrils. 2007 – 2009 Assistant professor in Department of Life Sciences in Faculty of Science Hokkaido University, Japan Analyzed effect of water content on mechanical property of DN gel. 2009 – 2013 Assistant professor in Creative Research Institution Hokkaido University, Japan Created functional tough gels, and analyzed mechanical property and surface friction of gels such as Double-Network gel and other tough gels. 2013 - Associate professor in Faculty of Advanced Life Science Hokkaido University, Japan Award: Award for Encouragement of Research in Polymer Science, the Society of Polymer Science, Japan (2009) Hokkaido University President's Award for Research Excellence for AY2014 (2015) Hokkaido University President's Award for Research Excellence for AY2015 (2016)

Recent Publications

• Oppositely Charged Polyelectrolytes Form Tough, Self-Healing, and Rebuildable Hydrogels, Luo, Feng; Sun, Tao Lin; Nakajima, Tasuku; Takayuki Kurokawa; Yu Zhao; Koshiro Sato; Abu Bin Ihsan; Xufeng Li; Honglei Guo and Jian Ping Gong, Advanced Materials Volume: 27 Issue: 17 Pages: 2722-+, 2015

• Mechano-actuated ultrafast full-colour switching in layered photonic hydrogels, Youfeng Yue, Takayuki Kurokawa, Md Anamul Haque, Tasuku Nakajima, Takayuki Nonoyama, Xufeng Li, Itsuro Kajiwara and Jian Ping Gong, Nature Communications Volume: 5, 2014

• Proteoglycans and Glycosaminoglycans Improve Toughness of Biocompatible Double Network Hydrogels, Zhao, Yu; Nakajima, Tasuku; Yang, Jing Jing; Takayuki Kurokawa; Jian Liu; Jishun Lu; Shuji Mizumoto; Kazuyuki Sugahara; Nobuto Kitamura; Kazunori Yasuda; A. U. D. Daniels and Jian Ping Gong, Advanced Materials Volume: 26 Issue: 3 Pages: 436-442, 2014

• Physical hydrogels composed of polyampholytes demonstrate high toughness and viscoelasticity, Tao Lin Sun, Takayuki Kurokawa, Shinya Kuroda, Abu Bin Ihsan, Taigo Akasaki, Koshiro Sato, Md. Anamul Haque, Tasuku Nakajima and Jian Ping Gong, Nature Materials Volume: 12 Issue: 10 Pages: 932-937, 2013

• Super tough double network hydrogels and their application as biomaterials, Haque, Md. Anamul; Kurokawa, Takayuki; Gong, Jian Ping, Polymer Volume: 53 Issue: 9 Pages: 1805-1822, 2012

• Lamellar Bilayers as Reversible Sacrificial Bonds To Toughen Hydrogel: Hysteresis, Self-Recovery, Fatigue Resistance, and Crack Blunting, Haque, M. Anamul; Kurokawa, Takayuki; Kamita, Gen; Gong, Jian Ping, Macromolecules Volume: 44 Issue: 22 Pages: 8916-8924, 2011

• True Chemical Structure of Double Network Hydrogels, Tasuku Nakajima, Hidemitsu Furukawa, Yoshimi Tanaka, Takayuki Kurokawa, Yoshihito Osada and Jian Ping Gong, MACROMOLECULES Volume: 42 Issue: 6 Pages: 2184-2189, 2009

• Mechanically strong hydrogels with ultra-low frictional coefficients, D. Kaneko, T. Tada, T. Kurokawa, J.!P. Gong and Y. Osada, ADVANCED MATERIALS Volume: 17 Issue: 5 Pages: 535-+, 2005

44

Figure. SEM images of suction pad on pelvis of clingfish.

Effect of Fibrous Skeleton at Clingfish Suction Pad

Takayuki Kurokawa1, Gento Shinohara2, Chanchal Kumar Roy3, Daniel R. King1, Tao Lin Sun1, Jian Ping Gong1

1Laboratory of Soft & Wet Matter, Faculty of Advanced Life Science, Hokkaido

University, Sapporo, Japan 2Department of Zoology, National Museum of Nature and Science, Tsukuba, Japan

3 Laboratory of Soft & Wet Matter, Graduate School of Life Science, Hokkaido University, Sapporo, Japan

E-mail:[email protected]

This paper presents an improved adhesive system from a composite structure

consisting of a polyampholyte hydrogel and glass fiber, inspired by the suction pad of the Aspasmichthys ciconiae. Clingfishes, a family of fish which includes A. ciconiae, have a suction pad on their pelvis, which allows for adhesion onto rocks in streams. It is expected that strong adhesion can be achieved in water when we mimic the essential structure of the suction pad. The suction pad of A. ciconiae consists of a brush-like skeleton and mucus. The mucus around the brushy fibers interfaces with the surface and is soft enough to achieve large area of contact. However, independently the mucus does not possess sufficient modulus to sustain adhesion. The brushy fibers increase the modulus of the system, which ultimately allows for sufficient adhesion. Therefore, it may be possible to improve adhesion by further decreasing the compliance of the adhesive structure1). Generally speaking, a trade-off exists between contact area and modulus in an adhesive; as modulus increases, contact area decreases at the same compression pressure. Thus, to develop an advanced

suction pad requires a system exhibiting anisotropic compliance to achieve good contact in compression and strong adhesion and resistance to deformation in stretch. It is thought that the vertical fiber skeleton could offer a substantial increase in modulus to the mucus while undergoing stretching. Here, we demonstrated the effect of using an optimized composite modulus on the adhesion strength by utilizing polyampholyte hydrogel-glass fiber composites.

1) Bartlett, M. D.; Croll, A. B.; King, D. R.; Paret, B. M.;

Irschick, D. J.; Crosby, A. J. Adv. Mater.2012, 24, 1078-1083.

�100

45

Dr. Hirotaka MAEDA

Department of Life Science and Applied Chemistry

Field of Advanced Ceramics

Nagoya Institute of Technology


• Telephone: +81 (0)52-735-5198 • Fax: +81 (0)52-735-5198 • Website: http://ebm.web.nitech.ac.jp • Address: Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan


2001 Graduated from Faculty of Engineering, Nagoya Institute of Technology 2003 Master of Engineering, Graduate School of Engineering, Nagoya Institute of Technology 2006 Doctor of Engineering, Nagoya Institute of Technology 2006-2011 Assistant Professor, Graduate School of Environmental Studies, Tohoku University 2011-2014 Assistant Professor, Center for Innovative Young Researchers, Nagoya Institute of Technology 2015- Associate Professor, Department of Frontier Materials, Nagoya Institute of Technology Award: 2013 The Ceramic Society of Japan Award for Advancements in Ceramic Science and Technology

Recent Publications

• H. Maeda, T. Abe, E. H. Ishida T. Kasuga, “Structure control of calcium silicate hydrate gels for dye removal applications”, Journal of the American Ceramic Society, 99, 2493-2496 (2016).

• H. Maeda, S. Lee, T. Miyajima, A. Obata, K. Ueda, T. Narushima, T. Kasuga, “Structure and physicochemical properties of CaO-P2O5-Nb2O5–Na2O glasses”, Journal of Non-Crystalline Solids,432, 60-64 (2016).

• H. Maeda, K. Kato, T. Kasuga, “Adsorption behavior of proteins on calcium silicate hydrate in Tris and phosphate buffer solutions” Materials Letters, 167, 112-114 (2016).

• H. Maeda, T. Kasuga, “Bioactive Ceramics Coatings”, in Part II Surface Modification, “Advances in Metallic Biomaterials” Processing and Applications, Springer Series in Biomaterials Science and Engineering Vol. 4, pp. 103-126, edited by M. Niinomi, T. Narushima and M. Nakai, Springer (2015).

• T. Oine, H. Maeda, T. Tsuzuki, M. Nakayama, T. Kasuga, “Relationship between electrical conductivities and structure of hybrid materials derived from mixtures of zinc phosphate glasses with different phosphate-chain lengths and benzimidazole”, Journal of Solid State Electrochemistry, 19, 907-912 (2015)

• H. Maeda, “Tuning of calcium silicate ceramics for environment-friendly material applications” Journal of the Ceramic Society of Japan, 122, 591-595 (2014).

• H. Maeda, Y. Kurosaki, T. Nakamura, M. Nakayama, E. H. Ishida, T. Kasuga, “Control of chemical composition of hydrogrossular prepared by hydrothermal reaction”, Materials Letters, 131, 132-134 (2014).

46

Thermal Management using Diatom Shells

Hirotaka Maeda*a, Yoshiaki Maedab, Yosuke Egashiraa, Tsuyoshi Tanakab and Toshihiro Kasugaa

aField of Advanced Ceramics, Nagoya Institute of Technology,

Gokiso-cho, Showa-ku, Nagoya, 466-8555, Japan bInstitute of Engineering, Tokyo Univeristy of Agriculture and Technology,

2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan, E-mail:[email protected]

Diatoms are one of unicellular photosynthetic microorganisms and its shells have unique micro/mesoporous structure consisting of biosilica. Many researches for biofuel applications by utilizing diatoms have been published. Reuse as a porous biosilica after biofuel applications would play an important role in reduction of waste materials because large amounts of diatoms are needed to produce biofuels. On the other hand, water is one of key materials for thermal management due to its high specific heat. The introduction of mesopores into the materials leads to adsorption spontaneously of water vapor considering the prediction based on the Kelvin equation of capillary condensation. We expect that diatom shells have a potential for condensation of water vapor into mesopores. Fistulifera solaris was used as diatoms. The green diatoms had small specific surface area and mesopore volume. The diatom shells were prepared by thermal treatment to remove their organic matters. The prepared diatom shells showed around 100 m2/g of specific surface area and a narrow pore size distribution curve (Figs. 1 and 2). As a result, the shells indicated a higher water vapor adsorption capacity than the green diatoms. To evaluate their thermal properties, the shells were coated on the silicon substrate. The humidification for adsorption of water vapor into the mesopores caused enhancement of their thermal transfer properties. The diatom shells adsorbed water vapor into the mesopores would have a possibility as reuse of biosilica for thermal manegement applications.

0

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Fig. 1. Surface morphology of the diatom shells after the heat treatment.

Fig. 2. Pore size distribution curves of the diatom shells (�) before and (�) after the heat treatment.

47

Dr. Daisuke ISHII, Assoc. Prof.

Graduate school of Engineering

Nagoya Institute of Technology (NITech)


• Telephone: +81 (0)52-735-5254 • Fax: +81 (0)52-735-5254 • Address: Gokiso-cho, Showa-ku, Nagoya, 466-8555, Japan


2006 Dr. Eng., Tokyo Institute of Technology 2006-2007 Special Postdoctoral Researcher: Frontier Research System, RIKEN Institute 2007-2008 Special Postdoctoral Researcher: Center for Intellectual Property Strategies, RIKEN Institute 2008-2012 Assistant Professor: WPI-AIMR, Tohoku University 2012-2015 Assistant Professor: Center for Innovative Young Researcher, NITech 2015-present Associate Professor: Graduate school of Engineering, NITech Award: 2013 Young Investigator Award, BAMN2013

Recent Publications

• D. Ishii, H. Yamasaki, R. Uozumi, E. Hirose “Does the kinorhynch have a hydrophobic body surface? Measurement of the wettability of a meiobenthic metazoan” R. Soc. Open Sci., Accepted (Sep. 13, 2016).

• S. Ito, D. Ishii “Overwritable Liquid Selective Open Channel” Surf. Interf. Anal., 2016, DOI 10.1002/sia.6109. • I. Ohta, Y. Takaku, H. Suzuki, D. Ishii, Y. Muranaka, M. Shimomura, T. Hariyama “Dressing living organisms

in a thin polymer membrane, a NanoSuit, for FE-SEM observation” Microscopy, 2014, 63(3), 295-300. • M. Tani, D. Ishii, S. Ito, T. Hariyama, M. Shimomura, K. Okumura “Capillary rise on legs of a small animal

and on artificially textured surfaces mimicking them” PLoS ONE, 2014, 9(5), e94341. • D. Ishii, M. Shimomura “Preparation of Biomimetic High Adhesive Superhydrophobic Polymer Pillar

Surfaces with Crown-Like Metal Microstructures”, J. Nanosci. Nanotechnol., 2014, 14, 7611-7613. • H. Suzuki, Y. Takaku, I. Ohta, D. Ishii, Y. Muranaka, M. Shimomura, T. Hariyama “In-Situ Preparation of

Biomimetic Thin Films and Their Surface Shield Effect for Organisms in High Vacuo”, PLoS ONE, 2013, 8(11), e78563.

• D. Ishii, H. Horiguchi, Y. Hirai, H. Yabu, Y. Matsuo, K. Ijiro, K. Tsujii, T. Shimozawa, T. Hariyama, M. Shimomura “Water transport mechanism through open capillaries analyzed by direct surface modifications on biological surfaces”, Sci. Rep., 2013, 3, 3024.

• Y. Takaku, H. Suzuki, I. Ohta, D. Ishii, Y. Muranaka, M. Shimomura, T. Hariyama “A thin polymer membrane, nano-suit, enhancing survival across the continuum between air and high vacuum” Proc. Natl. Acad. Sci. USA, 2013, 110(19), 7631-7635.

• D. Ishii, M. Shimomura “Invisible Gates for Moving Water Droplets: Adhesive Force Gradients on a Superhydrophobic Surface” Chem. Mater., 2013, 25(3), 509-513.

• D. Ishii, M. Shimomura “Facile preparation of ordered convex and concave metallic layers molded from air pocket arrays” Mater. Lett., 2013, 96, 218-220.

• D. Ishii, M. Shimomura “Wettability of Biomimetic Metal-Dome and Polymer-Pillar Hybrid Structured Surfaces Regulated by the Metal-Dome Density” Trans. Mater. Res. Soc. Jpn., 2012, 37(4), 537-539.

• D. Ishii, A. Takahashi, M. Shimomura “Biomimetic Hydrophilic–Hydrophobic Hybrid Polymer Structured Surfaces Having Both Superhydrophobicity and Strong Water Microdroplet Adhesion” Chem. Lett., 2012, 41(10), 1276-1278.

• D. Ishii, H. Yabu, M. Shimomura “Micro Droplet Transfer between Superhydrophobic Surfaces via a High Adhesive Superhydrophobic Surface” Commun. Comput. Inform. Sci., 2010, 52(2), 136-142.

• D. Ishii, H. Yabu, M. Shimomura “Novel Biomimetic Surface Based on a Self-Organized Metal-Polymer Hybrid Structure” Chem. Mater., 2009, 21(9), 1799-1801.

• D. Ishii, H. Yabu, M. Shimomura “Selective metal deposition in hydrophobic porous cavities of self-organized honeycomb-patterned polymer films by all-wet electroless plating” Col. Surf. A, 2008, 313-314, 590-594.

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Biomimetic Liquid Manipulation on structured surfaces

Daisuke Ishii

Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466-8555, Japan,

E-mail: [email protected] �Biomimetic materials” have now attracted worldwide attentions because of their unique surface properties, e.g. anti-fouling, anti-reflectance, drag reduction, superhydrophobicity, etc. These surface properties will provide many kinds of environmentally conscious materials. Self-assembly and self-organization are other key words of the eco-friendly manufacturing procedures. We have fabricated superhydrophobic metal-polymer hybrid surfaces having strong adhesive force to water droplet, in mimicry of surfaces of gecko feet and lose petals by using self-organization process and simple metal plating. The hybrid surface was composed of two independent microstructures, hydrophobic hexagonally polymer pillar array and hydrophilic metal microdomes. Density of the metal microdomes in the hybrid films was precisely changed from 0 to 30 % by temperatures of the catalytic solution in the electroless plating processes. Adhesion property of the hybrid film to water droplets was adjusted by density of the metal domes. Figure 1 schematically shows water droplet transfer between superhydrophobic surfaces by using the hybrid surface possessing different adhesion properties. This is the first example of the water droplet transfer from a superhydrophobic surface to a superhydrophobic surface.

155° 150°

Low-adhesion surface

HIgh-adhesion surface

Middle-adhesion surface

Touch

High-adhesion

Low-adhesion Middle-adhesion

Pull up Pull upTouchTransfer

(1) Low adhesion (2) Middle adhesion (3) High adhesion

100µm 100µm 100µm

(a)

(b) (c)

155° 150°




155° 150°




Touch

High-adhesion


Pull up Pull upTouchTransferTouch

High-adhesion


Pull up Pull upTouchTransfer

(1) Low adhesion (2) Middle adhesion (3) High adhesion

100µm 100µm 100µm

(a)

(b) (c)

Fig. 1. (a) Schematic models of water droplet transfer. (b) SEM images of the superhydrophobic hybrid surfaces having different adhesive forces of water droplet. (c) CCD images of water droplet transfer from the superhydrophobic surface to the superhydrophobic surface.

49

Haeshin Lee, Ph.D. (Last update: April, 2016) Curriculum Vitae

Associate Professor, Department of Chemistry, KAIST Institute NanoCentury Korea Advanced Institute of Science & Technology (KAIST) Phone: 042-350-2849 [email protected] http://sticky.kaist.ac.kr

Education

Ph.D. Biomedical Engineering, Northwestern University, June 2008 (Advisor Phillip B. Messersmith) B.S. Biological Sciences, Korea Advanced Institute of Science & Technology (KAIST), Mar. 1993 - Feb. 1997.

Research and Academic Career

Korea Adhesive and Interface Society, Academic Board Members (2015 ~) Bio-Therapeutic Delivery Society, Academic Board Members (2015 ~) Post-doc Fellow, Department of Chemical Engineering, MIT (Advisor Robert S. Langer & Daniel G. Anderson), 2008 Researcher, Department of Biochemistry and Molecular Biology, The University of Chicago, Feb. 2002 – Aug. 2003 Researcher, Department of Biological Sciences, Korea Advanced Institute of Science & Technology May 2000 – Jan. 2002; Oct. 1997 – Apr. 1998 Research Assistant, Department of Biological Science, Gwang-Ju Institute Science & Technology (GIST), March 1997 – Nov. 1997

Book Chapter

Kyuri Kim, Seonki Hong, Haeshin Lee ‘Mussel-inspired adhesive biomaterials’ Ch12 Vol 1, in Handbook of Biomimetics and Bioinspiration. pp 273-291 (http://dx.doi.org/10.1142/9789814354936_0012) 2014.

Haeshin Lee, Phillip B. Messersmith, ‘Bio-inspired nano-materials for a new generation of medicine’ Edited by Tuan Vo-Dinh in Nanotechnology in Biology and Medicine, Chapter 3, CRC Press, ISBN 0849329493, 2007 (Jan, 24th)

Awards and Honors

1. KAIST Excellence in Research (우수연구상) (2015), KAIST Collaborative Award (공동연구상, 2013년), KAIST Pioneering New Knowledge Award (신지식인상, 2012년), KAIST Excellence in Teaching (2010, 2011, and 2014)

2. POSCO Chung-Am Award (청암 학술상) (2011년)3. Top 100 Science Stories Discover Magazine, 2008, January4. NASA Inventor Award (2008년)5. The Future-leading Scientist Award (미래과학자상) 2007, The Ministry of Science

and Education (과학기술부)6. Graduate Student Award, Materials Research Society Meeting, Boston, 2007

50

7. Richard W. Jones best poster award, 2007, BME, Northwestern University

Publications (Current citations: ~ 10,500 times, H-index = 42)

1. Mihyun Lee, S. H. Lee, I-K. Oh, Haeshin Lee, “Microwave-accelerated rapid, chemicaloxidant-free, material-independent surface chemistry of poly(dopamine)” Small 2016, accepted

2. S. Ma. Haeshin Lee, Y. Liang, Feng Zhou* ‘Astringent mouthfeel as a consequence oflubrication failure’ Angew. Chemie. Int. Ed. 2016, 55, online(http://dx.doi.org/10.1002/anie.201601667)

3. Mikyung Shin, K. Kim, W. Shim, J. W. Yang, Haeshin Lee “Tannic acid as a degradablemucoadhesive compound” ACS Biomaterials Sci. & Eng. 2016, 2, 687-696(http://dx.doi.org/10.1021/acsbiomaterials.6b00051)

4. Sang Hyeon Hong, S. Hong, M.-H. Ryou, J. W. Choi, Sung Min Kang*, Haeshin Lee*“Sprayable ultrafast surface modification” Adv. Mater. Interfaces 2016, online(http://dx.doi.org/10.1002/admi.201500857)

5. M. Kim, J.-S. Kim, Haeshin Lee, Jae-Hyung Jang* “Polydopamine-decorated sticky, water-friendly, biodegradable polycarprolactone cell carriers” Macromol. Biosci. 2016 online(http://dx.doi.org/10.1002/mabi.201500432)

6. Sang Hyeon Hong, M. Shin, J. Lee, J. H. Ryu, S. Lee, J. W. Yang, W. D. Kim, Haeshin Lee,“STAPLE: stable alginate gel prepared by linkage exchange from ionic to covalent bonds” Adv.Healthcare Mater. 2016, 5, 75-79 (http://dx.doi.org/10.1002/adhm.201400833)

7. Mihyun Lee, Y. Kim, J. H. Ryu, K. Kim, Y.-M. Han*, Haeshin Lee* “Long-term, feeder-freemaintenance of human embryonic stem cells by mussel-inspired adhesive heparin and collagenType I” Acta Biomaterialia 2016, 32, 138-148 (online Jan 23th, 2016),http://dx.doi.org/10.1016/j.actbio.2016.01.008

8. Chanoong Lim, J. Huang, Sunjin Kim, H. Zeng*, Haeshin Lee*, D. S. Hwang*“Nanomechanics of poly(catecholamine) coatings in aqueous solutions” Angew. Chemie. Int.Ed. 2016, 55, 3342-46 http://dx.doi.org/10.1002/anie.201510319

9. Hui-Lian Che, I.-H. Bae, K. S. Lim, S. Uthaman, In Taek Song, Haeshin Lee, D. Lee, W. J.Kim, Y. Ahn, In-Kyu Park, M.-H. Jeong “Novel fabrication of microRNA nanoparticles-coatecoronary stent for prevention of angioplasty restenosis” Korean Circulation J. 2016, 46, 23-32http://dx.doi.org/10.4070/kcj.2016.46.1.23

10. H. Joo, Eunkyoung Byun, M. Lee, Y. Hong, Haeshin Lee*, Pilnam Kim*,“Biofunctionalization via flow shear stress resistant adhesive polysaccharide, hyaluronic acid-catechol for enhanced in vitro endothelialization” J. Industrial & Eng. Chem. 2016, 34, 14-20http://dx.doi.org/10.1016/j.jiec.2015.11.015

11. Kyueui Lee, E. Prajatelistia, D. S. Hwang, Haeshin Lee* “Role of dopamine chemistry in theformation of mechanically strong mandibles of Grasshoppers” Chem. Mater. 2015, 27, 6478(pub. date: July 27th)http://dx.doi.org/10.1021/acs.chemmater.5b01680

12. Ji Hyun Ryu, Seonki Hong, Haeshin Lee, “Bio-inspired adhesive catechol-conjugated chitosanfor biomedical applications: A mini review” Acta Biomaterialia 2015, 27, 101-115.

13. Seongwoo Ryu, Byung Gon Kim, Jang Wook Choi, Haeshin Lee “Highly oriented carbonnanotube sheets for rechargeable lithium oxygen battery electrodes” J. Nanosci. Nanotech.2015, 15, 7611-7614

14. Shazid Md. Sharker, S. M. Kim, J. E. Lee, K. H. Choi, G. Shin, S. Lee, K. D. Lee, J. H. Jeong,Haeshin Lee*, Sung Young Park “Functionalized biocompatible WO3 nanoparticles fortriggered and targeted in vitro and in vivo photothermal therapy” J. Control. Rel. 2015, 217,211-220.

15. Hui-Lian Che, In-Ho Bae, K. S. Lim, In Taek Song, Haeshin Lee, D. Lee, W. J. Kim, M.-H.Jeong, In-Kyu Park*, Y. Ahn* “Therapeutic effect of Akt1 siRNA nanoparticle eluting stent onthe suppression of post-angioplasty restenosis, J. Biomed. Nanotech.”. 2015, accepted.

51

CATECHOL Batteires: Improvement of Battery Performances by Catechol and its Deriveative Adhesive Molecules

Haeshin Leea,b

a Department of Chemistry,

b Center for Nature-inspired Technology Korea Advanced Institute of Science and Technology (KAIST)

Daejeon, Republic of Korea E-mail: [email protected]

Catechol, the key adhesive molecule in marine mussels, is the side chain moiety of 3,4-dihydroxy-l-phenylalanine called DOPA in mussel adhesive proteins. From the first finding of DOPA in early 80s, catechol has been extensively studied by incorporating into various polymeric backbones for wet-resistant adhesives. Mostly, their applications have been biomaterials, biosensors, and bio/nano-technologies. In this presentation, catechol and its derivative molecules such as catecholamines and norepinephrine can be used in energy storage systems such Li-ion, Li-air, and Li-S batteries. For silicon-containing anodes in Li-ion batteries, catechol-conjugated natural polymers for example, alginate-catechol and poly(acrylic acid)-catechol effectively act as anode glues to prevent the well-known mechanical failures caused by volume expansion/shrinkage repeats during charging/discharging cycles. Furthermore, catechol-containing nanoparticles quenches reactive oxygen species (ROS) continuously generated in Li-air batteries. In general, the ROS species in the battery systems decrease overall lifetime of Li-air batteries by non-specific corrosive reactions. For Li-S batteries, oligo-sulfide shuttles have been problems to decrease lifetime of the batteries, which can be prevented by catechol-containing molecules.

52

Building of a Database Promoting Conceptions on Biomimetics Based on SEM Images of Insects

Shûhei Nomuraa, Takahiro Ogawab, Miki Haseyamab and Koji Kozakic

aDepartment of Zoology, National Museum of Nature and Science,

Amakubo 4-1-1, Tsukuba-shi, Ibaraki 305-0005 Japan E-mail:[email protected]

bGraduate School of Information Science and Technology, Hokkaido University, N-14, W-9, Sapporo, Hokkaido 060-0814 Japan

E-mail: [email protected], [email protected] cThe Institute of Scientific and Industrial Research, Osaka University,

8-1 Mihogaoka, Ibaraki, Osaka 567-0047 Japan E-mail: [email protected]

An image database for promoting conceptions on biomimetics is built up on the basis of the accumulated SEM images of insect microstructures. The data unit of the database is formed from a SEM photo of various kind of insect microstructure and the text data on the sample and the SEM image. The text data is comprised from two excel seats including the following 28 items: 1) sample no., 2) depository, 3) classification, 4) order, 5) family, 6) Japanese name, 7) genus, 8) species, 9) subspecies, 10) sex, 11) locality, 12) date, 13) collector, 14) habitat, 15) method, 16) ecological keywords, 17) size, 18) position, 19) camera, 20) coating, 21) responsibility, 22) photographer, 23) image file nos. (range), 24) note, 25) image file no., 26) magnification, 27) position, 28) data division. From the accumulated SEM images, the ones desired by researchers can be retrieved via an image retrieval platform. This platform visualizes the SEM images according to their visual similarities. We can also retrieve images similar to uploaded query images. After searching similar images, conceptions on biomimetics can be found by examining the text data attached to the retrieved similar images.

� � � � � � � � � � � � � � � � � � � � � �

About Corresponding Author: Dr. Shûhei NOMURA Senior Curator Department of Zoology, National Museum of Nature and Science (NMNS) E-mail: [email protected] Telephone: +81 (0)29-853-8901 Fax: +81 (0)29-853-8998 Address: Amakubo 4-1-1, Tsukuba-shi, � � � � Ibaraki, 305-0005 JAPAN Education, Academic Backgrownd 1990 Doctor of Agriculture, Kyushu University 1990 Assistant Professor, Kyushu University 1995- Curator, National Science Museum, Tokyo 2007- Senior Curator, National Museum of Nature and Science Publications 1) Yin, Z.-w., S. Nomura and M.-j. Zhao, Zootaxa, 3222, 61-68 (2012). 2) Bekchiev, R., P. Hlavac and S. Nomura, Zookeys, 340: 21-42 (2013). 3) Nomura, S. and R. A. B. Leschen, The Coleopterists Bulletin, 69: 121-152.

Figure 1. Interface of the image retrieval platform. 1) selection of database, 2) navigation window, 3) uploaded query image, 4) similar image retrieved by the platform, 5) text data attached to the selected image.

53

X-ray micro CT Observation for Internal Structure of Insects

Yuta Nakase*a, Shûhei Nomuraa and Masami Edahirob, Takashi Kushibikib

aDepartment of Zoology, National Museum of Nature and Science, Amakubo 4-1-1, Tsukuba-shi, Ibaraki 305-0005 Japan

bShimadzu Corporation, 1 Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto, 604-8511, Japan,

E-mail: [email protected] X-ray computed microtomography (micro CT) observations were performed to obtain detailed three-dimensional images of a wasp parasitized by strepsiptera and eyes of 2 species of beetles. Internal structure of insects has been observed by destructive methods, such as dissection or sliced section preparation. It is difficult to make sliced sections of beetles that have hard exoskeletons and soft internal structure. However, by using micro-CT easily enabled non-destructive observation internal structure of hard beetles. In this study, non-destructive 3D sampling on a wasp parasitized by strepsiptera and eyes of 2 species of beetles (horned beetle and brentid weevil) were conducted by a micro-focused X-ray CT, SHIMADZU inspeXio SMX-100CT and inspeXio SMX-225CT HR. The sample was stained by iodine 1� in ethanol 99� solution for contrast enhancement. Digestive organ and sting of the wasp, strepsipteran male puparium, and female, internal structure of eyes were recognized in the reconstructed three-dimensional images. While the thin portions such as wing film and fine hairs on wasp body were lacked in the reconstructed three-dimensional images.

About Corresponding Author: Dr. Yuta NAKASE Research Assistant Staff Department of Zoology, National Museum of Nature and Science (NMNS) E-mail: [email protected] Telephone: +81 (0)29-853-8901 Fax: +81 (0)29-853-8998 Address: Amakubo 4-1-1, Tsukuba-shi, � � � � Ibaraki, 305-0005 JAPAN Education, Academic Backgrownd and Awards 2014 Doctor of Human and Environmental Study, Kyoto University 2015- Research Assistant Staff, National Museum of Nature and Science (NMNS) Publications 1) Y. Nakase, K. Suetsugu, Plant Species Biology, 31(2), 148-152 (2016). 2) K. Juzova, J Straka, Y. Nakase, Zool. Jour. Linn. Soc., 174, 228-243 (2015). 3) Y. Nakase, M. Kato, Zool Sci., 30(4), 331-336 (2013).

54

The origin of colour of a petal: subcellular structural change during the flowerig from buds in a buttercup

Y. Yamahamaa, T. Shimozawab, S. Yoshiokac, D. Ishiid, H. Fudouzi e, H. Kubob,

M. Shimomuraf, Y. Takakua,, K.-i. Kimurag, Y. Uozuh, and T. Hariyama*a

aHamamatsu Universtiy School of Medicine, Handayama, Higashiku, Hamamatsu, 431-3192, bHokkaido University, Kita10-Nishi 8, Kita-ku, Sapporo, 060-0810, cTokyo University of Science, Yamazaki, Noda, 278-8510, dNagoya Institute of Technology, Gokisho-cho, Showa-ku, Nagoya, 466-8555, eNational Institute of Materials Science, Sengen, Tsukuba, 305-0047, fChitose Institute of Science and Technology, Bibi, Chitose, 066-8655, gHokkaido University of Education, Aino-sato, Kita-ku, Sapporo, 002-8501, and hDaikoku-cho, Tsurumi-ku, Yokohama, 230-0053

E-mail:[email protected] Ultraviolet light is an important component for animal vision and is used as a signal source by a wide variety of surface reflection of animals and plants. We here investigated the detailed correlation between the optical properties and the subcellular morphology of the petal of Ranunculus japonicus. Ultraviolet reflection was observed at the front side of the petal except the nectar guide area. Ultra-structural observations revealed the existence of three main layers at the front side: single layered cells containing carotenoid pigments, pyramidal vascular zone and starch layer, however, the region which showed no ultraviolet reflection such as the nectar guide area and the back side possessed no starch layer. We will discuss the origin of the ultraviolet reflection and the high reflection with metallic luster by the simple optical method and the subcellular components in the petal.

About Corresponding Author: Dr. Takahiko HARIYAMA, Prof. Dept. of Biology, Hamamatsu Universtiy School of Medicine. E-mail: [email protected] Telephone: +81 (0)53-435-2317 Fax: +81 (0)53-435-2317 Website: http://www2.hama-med.ac.jp/w1d/biology

/hariyama/hariyama.html Address: 1-20-1, Handayama, Higashi-ku, Hamamatsu 431-3192, Japan Education, Academic Background 1983 Research Associate, Research Center for Applied Information Sciences, Tohoku University 2001 Associate Professor, Department of Biology, Faculty of Medicine, Hamamatsu University School

of Medicine 2004 Professor, Department of Biology, Faculty of Medicine, Hamamatsu University School of

Medicine Publications 1) Y. Takaku et al., PNAS 110(19), 7631-7635 (2013). 2) D. Stavenga et al., Plos One, 7(11), e49743 (2012). 3) D. Stavenga et al., Phil. Trans. R. Soc. B, 366, 709-723 (2011). 4) A. Ugolini et al., Biol. Buuu. 219. 72-79 (2010)

Figure1. The petal of Ranunculus japonicus shows the bright reflection caused by the subcellular structures.

55

Wettability of Snail’s Shells with Hydrophilic Treatment

Ryota Yamagishia, Hirotaka Maeda*a, Takeshi Yokotaa, Yasutaka Matsuob, Toshihiro Kasugaa

aNagoya Institute of Technology,

Gokiso, Syowa-ku, Nagoya, 466-8555, Japan, bHokkaido University,

N21W10, Kita-Ward, Sapporo, 001-0020, Japan E-mail:[email protected]

Snail’s shells have self-cleaning properties, such as no attachment of oil droplets on the surface in water. The droplet behavior on their surface is one of key factors for developing their antifouling properties. The surface of snail’s shells has three types of grooves with the different pitch, 10, 100 and 500 μm (Fig. 1). In our previous work, water droplets showed an exceedingly spreading on the shells, even though they indicated 85 ± 5 o of the contact angle. We also found that water droplets penetrated between the grooves with the pitch of 10 μm accompanying with the water spreading. Water droplets have been reported to easily penetrated between roughness due to hydrophilic properties (N. A. Patankar (2004)). In this work, the droplet behaviors on snail’s shells coated with Al and Al2O3 were investigated to clarify the influence of the chemical compositions on the penetration of the droplet. The spreading lengths of the droplet on the shells coated with Al were smaller than that on the shells coated with Al2O3. The droplet observation using CCD camera showed that the shells coated with Al were more easily penetrated between grooves than other sample due to high surface free energy of Al. Contact angle hysteresis of the droplet on the shells coated with Al increased with increasing the contact time. On the other hand, the shells coated with Al2O3 indicated the almost same as contact angle hysteresis of the droplet, independently of the contact time. These results implied that the chemical composition caused controlling the penetration of the droplet into the grooves of the shells, leading to change in the water spreding length.

20 μm

200 μm

500 μm

100 μm

10 μm

Fig. 1. The SEM images of snail’s shell.

About Presentation Author Mr. Ryota Yamagishi Department of Frontier Materials Graduate School of Engineering Nagoya Instisute of Technology E-mail: [email protected] Tele phone: +81 (0)52-735-5198 Fax: +81 (0) 52-735-5198 Website: http://ebm.web.nitech.ac.jp/PB/top.html Address: Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan

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Peripheral coding of sex-pheromone blend by male-specific odorant receptors in moth

Hidefumi Mitsuno, Takeshi Sakurai, Ryohei Kanzaki

Research Center for Advanced Science and Technology,

The University of Tokyo, Komaba, Meguro-ku, Tokyo, 153-8904, Japan,


Male moths detect the conspecific female-emitted sex pheromone components and their blend ratios. We previously revealed that five sex pheromone receptors of several moth species are narrowly tuned to respective sex pheromone components. However, it remains unknown how male moths detect the blend ratio with these receptors. Therefore, we tried to identify the receptors for main and minor sex pheromone components in moth species, Nokona pernix, that utilizes two pheromone components (blend ratio, 9 : 1). We cloned putative sex pheromone receptor genes, NpOR1 and NpOR3 from N. pernix. By oocyte voltage clamping, we demonstrated that NpOR1 or NpOR3 selectively responded to major or minor components, respectively. Also, these receptors dose-dependently responded to each corresponding component with similar detection limit and EC50. We conclude that the cloned genes encode sex pheromone receptors that are narrowly tuned to their respective components. Furthermore, by using two-color in situ hybridization with RNA probes against the sex pheromone receptor genes (Figure1), we found that the proportions of ORNs expressing each sex pheromone receptor are correlated with the ratios of the components they detect in the pheromone blend. This correlation suggests an optimal adaptation of population ratios of ORNs to the blend ratios of the conspecific sex pheromone in the antennae of male moths. Understanding of this detection mechanism might lead to the development of biomimetic chemical sensor for detecting gases composed of several components.

About Author: Dr. Hidefumi MITSUNO Research Center for Advanced Science and Technology, The University of Tokyo E-mail: [email protected] Telephone: +81 (0)3-5452-5198 Fax: +81 (0)3-5452-5197 Address: 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan Education, Academic Backgrownd and Awards 2009 Ph.D., Agriculture, Kyoto University 2007 Project researcher, RCAST, The University of Tokyo 2015- Assistant professor, RCAST, The University of Tokyo Publications 1) M. Termtanasombat, et al., J. Chem. Ecol., (2016) doi:10.1007/s10886-016-0726-7. 2) H. Mitsuno et al., Biosens. Bioelectron., 65, 287-294 (2015). 3) H. Mitsuno et al., Eur. J. Neurosci., 28, 893-902 (2008).

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Inducible de novo biosynthesis of isoflavonoids in soybean leaves by Spodoptera litura (Lepidoptera: Noctuidae) derived elicitors:

Tracer techniques aided by high resolution LCMS.

Ryu Nakata1, Naoko Yoshinaga1, Masayoshi Teraishi1, Yutaka Okumoto1, Naoki Mori1 *

1Graduate School of Agriculture, Kyoto University, Kitashirakawa, Sakyo, Kyoto,

Kyoto 606-8502, Japan E-mail:[email protected]

Isoflavonoids are a characteristic family of natural products in legumes known to mediate a range of plant-biotic interactions. For example, in soybean (Glycine max: Fabaceae) multiple isoflavones are induced and accumulate in leaves following attack by Spodoptera litura (Lepidoptera: Noctuidae) larvae. To quantitatively examine patterns of activated de novo biosynthesis, soybean (Var. Enrei) leaves were treated with a combination of plant defense elicitors present in S. litura gut content extracts and L-α-[13C9, 15N]phenylalanine as a traceable isoflavonoid precursor. Combined treatments promoted significant increases in 13C-labeled isoflavone aglycones (daidzein, formononetin and genistein), 13C-labeled isoflavone 7-O-glucosides (daidzin, ononin and genistin), and 13C-labeled isoflavone 7-O-(6’’-O-malonyl-β-glucosides) (malonyldaidzin, malonylononin and malonylgenistin). In contrast levels of 13C-labeled flavones and flavonol (4’,7-dihydroxyflavone, kaempferol and apigenin) were not significantly altered. Curiously, application of fatty acid-amino acid conjugate (FAC) elicitors present in S. litura gut contents, namely N-linolenoyl-L-glutamine and N-linoleoyl-L-glutamine, both promoted the induced accumulation of isoflavone 7-O-glucosides and isoflavone 7-O-(6’’-O-malonyl-β-glucosides), but not isoflavone aglycones in the leaves. These results demonstrate that at least two separate reactions are involved in elicitor-induced soybean leaf responses to the S. litura gut contents: one is the de novo biosynthesis of isoflavone conjugates, induced by FACs, and the other is the hydrolysis of the isoflavone conjugates to yield isoflavone aglycones. Gut content extracts alone displayed no hydrolytic activity.

About Corresponding Author: Dr. Naoki Mori, Prof. Applied Life Sciences, Graduate School of Agriculture, Kyoto Universityy E-mail: [email protected] Telephone: +81 (0)75-753-6307 Address: 2-1-1, Katahira, Aoba-ku, Sendai 980-8577, Japan Education, Academic Backgrownd and Awards 1996 Doctor of Agriculture, Kyoto University 1997 Assistant Professor, Kyoto University 2007 Associate Professor, Kyoto University 2016 Professor, Kyoto University Publications 1) J. Yan,T. Aboshi, N. Mori, G. Jander, G. The Plant Cell, 27, 1-14 (2015). 2) N. Yoshinaga et al., PNAS, 105, 18058-18063 (2008).

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Cellular Active Touch Sensing of Substrate Rigidity

Takeshi Kobayashi*a and Masahiro Sokabeb

aDep. Integrative Physiol., Nagoya University Grad. Sch. Med., 65 Tsurumai, Showa-ku, Nagoya, 466-8550, Japan,

E-mail:[email protected] Cell motility, spreading, proliferation and differentiation are critically influenced by the substrate rigidity. Cells adhere to the substrate via adhesion molecules and recognize their mechanical environment at those adhesion sites. To sense substrate rigidity, cells apply traction forces to cell–substrate adhesions via actin stress fibers (SFs) and measure mechanical responses of the substrate. The supra-molecular complex of SF/focal adhesion (FA)/mechanosensitive ion channel (MSC) may represent an ideal device to execute this task. MSCs located in or near FAs would convert the substrate-rigidity dependent stress generated in the FA into the level of cytoplasmic Ca2+ concentration via a local activation of the

MSCs. By such active touch sensin mechanisms, cells could detect mechanical properties (e.g., stiffness and viscosity) of their surrounding environments, including neighboring cells and substrates.

FIGURE Rigidity sensing by SF/FA/MSC complex. (A) Actively generated contractile forces in SF pull the substrate: tension in the SF/FA complex may depend on the substrate rigidity. (B) Spontaneous Ca2+ oscillations on a rigid (upper) and a soft (lower) substrate. Rigidity sensing is much more vigorous on the border between rigid and soft substrates during durotaxis (middle).

About Corresponding Author: Dr. Takeshi KOBAYASHI Department of Integrative Physiology Nagoya University Graduate School of Medicine E-mail: [email protected] Telephone: +81 (0)52-744-2055 Fax: +81 (0)52-744-2058 Website: http://www.med.nagoya-u.ac.jp/physiol2/ Address: 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan Education, Academic Backgrownd and Awards 1997 Doctor of Science, University of Tokyo 2010 Assistant Professor, Nagoya University Graduate School of Mediicine 2015- Lecturer, Nagoya University Graduate School of Mediicine Publications 1) T. Kobayashi, M. Sokabe, Curr Opin Cell Biol. 22(5), 669-676 (2010). 2) K. Maeda et al., Sci Rep, 6, 22288 (2016).

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About Corresponding Author: Mr. Isono Yuta, Prof. I’m researching of LOD. For example “Automatic LOD Conversion System For Tweet Data Associated with Tourist Spots“. Information Technology, Engineering, Nagasaki University. E-mail: [email protected] Website: http://yuta-isono.com Address: 1-14, Bunkyo-machi, Nagasaki 852-8521, Japan Education, Academic Backgrownd and Awards 2015 Bachelor of Information Technology, Engineering, Nagasaki University 2016 Young Scientist Award (LOIS) 2017 Expected to graduate with Master of Information Technology, Engineering, Nagasaki University

Serendipity-Oriented Bio-TRIZ Database

Isono Yutaa, Yamauchi Takeshib, Kobayashi Hidetoshic and Kobayashi Torua

aNagasaki University, Japan, bNiigata University, Japan, cOsaka University, Japan,

E-mail:[email protected] We developed a Bio-TRIZ database. This is the database that applies biological engineering to TRIZ database. Why we did so? If we might think about engineering from the perspective of biology, we could discover the new idea. In a famous story, Velcro has been invented from the nature of a burdock. In another story, water-repellent fabric has been invented from the nature of a lotus leaf. Based on these examples, we developed the Bio-TRIZ database for engineers. However, we have implemented the Bio-TRIZ database as a relational database, so that we could not search the biological function with a flexible style nor add the new data to the database easily. In order to solve these problems, we focus on the Linked Open Data (LOD) that has attracted attention in recent years. LOD consists of subject-predicate-object. Therefore, we can search the biological function flexibly and add the new data to the database easily at any time. And we developed prototype. This prototype can search in several ways. For example “Search from Elements”, “Search from Function” and “Search from TRIZ” like Fig 1. The details will be available in poster session. Like this, engineers can search free style, so by combining Bio-TRIZ and LOD, we aim to support engineers in a more serendipity directional.

Fig 1 Bio-TRIZ resource description framework scheme

60

Non-iridescent structural coloration of the inner feathers of Japanese blue-colored species

Gen Morimotoa

aYahmashina Institute for Ornithology,

E-mail:[email protected] Non-iridescent blue is a common coloration of bird feathers. Birds show diversity in their coloration, and “structural coloration” is a common color-producing mechanism. This mechanism is different from pigment coloration. In addition, iridescent and non-iridescent structural color could be produced via different mechanisms. The present study focused on non-iridescent structural color, such as matted blue, in bird feathers. The hypothesis of this study was that similarly colored species have similar inner feather structures for color production. I observed and compared the barb nano/microstructure of the blue feathers of some Japanese bird species using optical and scanning electron microscopy (SEM). The results suggested that some species showed similar inner feather structures, which could be the basis for producing blue structural colors.

About Corresponding Author: Dr. Gen MORIMOTO, Resercher. Division of Avian Conservation, Yahmashina Institute for Ornithology E-mail: [email protected] Telephone: +81 (0)4-7182-1107 Fax: +81 (0)4-7182-4342 Website: http://www.yamashina.or.jp Address: Konoyama115, Abiko, Chiba 270-1145, Japan Education, Academic Backgrownd 2007 Doctor of Science, Rikkyo University 2007- Visiting researcher, Toho University 2008 Postdoctoral research fellow, Rikkyo University 2011 Supprt researcher, National museum of nature and science, Japan. 2011 Supprt researcher, Yamashina Institute for Ornithology 2014 Researcher, Yamashina Institute for Ornithology Publications 1) G. Morimoto, Journal of the Japan Society of Color Material, 89(6), 1-7 (2016). 2) G. Morimoto, Y. Takahashi, K Tsurui, Japanese Journal of Ecology, 65(1), 39-46 (2015). 3) T. Ueta, G. Fujii, G. Morimoto et al. EPL (Europhysics Letters), 107(3), 34004.(2014) . 4) G. Morimoto, N. Yamaguchi, K. Ueda. Journal of ethology, 24(3), 261-266. (2006).

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Development of self-assembled antifouling surfaces against barnacles

T. Murosaki*a, Y. Nogatab, Y. Hiraic, M. Shimomurac

a Asahikawa Medical University,

b Central Research Institute of Electric Power Industry and c Chitose Institute of Science and Technology, Midorigaoka-Higashi, Asahikawa 078-8510, Japan

E-mail : [email protected] Barnacles are popular marine sessile organisms, and their strong adhesion causes serious fouling problems. To prevent submerged artificial surfaces (ship hulls, fishnets and intake channels) from the fouling of barnacles, tributyltin (TBT) based antifouling paints have been used. However, TBT shows highly toxic to marine life, therefore development of environmentally-friendly antifouling materials is required. Recently, self-assembled honeycomb-structured porous films have been developed by casting a mixed solution of hydrophobic polymer and amphiphilic copolymer under humid conditions (Figure 1). In this study, we investigated antifouling properties of self-assembled honeycomb-structured porous surfaces and several microstructured surfaces, which made based on honeycomb-structured film against settlement of barnacles in laboratory environment. In the results, honeycomb-structured surfaces reduced the barnacle settlements compared to other surfaces. Furthermore, the antifouling effect of honeycomb-structured surfaces was increased with the increasing pore size of honeycomb.

About Corresponding Author: Dr. Takayuki MUROSAKI Department of Chemistry, Asahikawa Medical University E-mail: [email protected] Telephone: +81 (0)166-68-2728 Website: http://www.asahikawa-med.ac.jp/dept/ge/chemical/ Address: 2-1-1-1, Midorigaoka-Higashi, Asahikawa 078-8510, Japan Education, Academic Backgrownd 2009 Ph. D., Graduate School of Science, Hokkaido University 2009 - 2012 Postdoctoral fellow, Faculty of Advanced Life Science, Hokkaido University 2012 - 2014 Research assistant, Tohoku University WPI Advanced Institute for Materials Research 2014 Research Fellow, Chitose Institute of Science and Technology 2014 - Present Assistant Professor, Department of Chemistry, Asahikawa Medical University Publications 1) N. Ahmed, T. Murosaki et al., Biofouling, 30 (3), 271 - 279 (2014). 2) N. Ahmed, T. Murosaki et al., Soft Matter, 7 (16), 7281 - 7290 (2011). 3) T. Murosaki et al., Biofouling, 25 (4), 313 - 320 (2009).

20μm

Figure 1. The SEM image of self-assembled honeycomb-structured porous film

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Functional analysis and surface modification of hierarchical microstructures of diatom silica cell walls

Yoshiaki Maedaa, Yuta Niwaa, David Kisailusb, Tomoko Yoshino

and Tsuyoshi Tanaka*a

aDivision of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo

184-8588, Japan, b Department of Chemical and Environmental Engineering, University of

California, Riverside, Room 343 Materials Science and Engineering Building, Riverside, California 92521, United States

E-mail:[email protected] Diatoms create hierarchical micro- and nano-structured silica cell walls, called frustules. Diatom frustules have a large surface area due to the highly ordered porous microstructures, and it can be advantageous as a solid-phase support materials in a number of biotechnological applications such as biocatalytic carreirs, drug delivery, bioassays and biosorption process. Because controle of the surface propertis of the frustules is one of the key technologies for such applications, we established a diatom-cell surface display technique, in which novel frustule-associated proteins were identified from genome infomation of a marine diatom Fistulfiera solaris, and the identified proteins were genetically modified in order to display desired proteins on the frustules. As a demonstration, we displayed a TiO2-associated peptide on the frustules to create the composite of photocatalytic TiO2 and diatom frustules. Interaction between TiO2 and the engi-neered frustles was investigated, and increase in TiO2-deposition with the aid of the peptide display was confirmed. Although crystalization of TiO2 on the frustules at room temperature was not achieved, thermal anealing of the composites at 500 °C resulted in the generation of highly catalytic anatase nanocrystals.

About Author: Dr. Yoshiaki Maeda, Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology E-mail: [email protected] Telephone: +81 (0)42-388-7021 Fax: +81 (0)42-385-7713 Website: http://web.tuat.ac.jp/~biomol/indexeng.html

(Prof. Tanaka’s Lab Website) Address: 2-24-16, Naka-cho, Koganei, Tokyo 184-8588, Japan Education, Academic Backgrownd and Awards 2010 Doctor of Engineering, Tokyo University of Agriculture and Technology 2010-2013 Postdoctoral Fellow, City University of New York, Hunter College 2013-2015 Research Associate, Tokyo University of Agriculture and Technology 2015- Assistant Professor, Tokyo University of Agriculture and Technology Publications 1) Y. Maeda, T. Tateishi, Y. Niwa, M. Muto, T. Yoshino, D. Kisailus, T. Tanaka, Biotechnology for Biofuels, 9, 10 (2016)

63

The NanoSuit® method to observe the living mammalian tissue and cell

Yasuharu Takaku*a, Masatsugu Shimomurab and Takahiko Hariyama a

aDepartments of Biology, Hamamatsu University School of Medicine, 1-20-1

Handayama, Higashi-ku, Hamamatsu 431-3192, Japan, bDepartments of Bio- and Material Photonics, Chitose Institute of Science and

Technology, 758-65 Chitose, Hokkaido 066-8655, Japan


Although field-emission scanning electron microscopy (FE-SEMs) has proven very

useful in life science related research, the high vacuum required (10-3-10-7 Pa) precludes direct observations of living organisms and often produces unwanted structural changes. However, we have earlier described a method that allows the investigator to keep a variety of multicellular organisms alive in the high vacuum environment of the electron microscope by encasing the organisms in a thin, vacuum-proof suit, the “NanoSuit®”. We further improved the technique and applied it to excised wet tissues as well as single cells for observations by FE-SEM with a Surface Shield Enhancer (SSE) solution. The SSE based NanoSuit affords a much higher barrier to gas and/or liquid than the older type of the NanoSuit did and seeing that it provides exceedingly more detailed images.

About Corresponding Author: Dr. Yasuharu Takaku, Ph.D. Hamamatsu University School of Medicine E-mail: [email protected] Telephone: +81 (0)53-435-2351 Fax: +81 (0)53-435-2351 Address: 1-20-1 Handayama, Hamamatsu, 431-3192, Japan Education, Academic Backgrownd and Awards 2001-2003 Postdoctoral Fellow, The Japan Society for Promotion of Science 2004-2005 Assistant Professor, Horizontal Medical Research Organization, Kyoto University 2006-2010 Postdoctoral Fellow, National Institute of Genetics 2011-2014 Postdoctoral Fellow, Hamamatsu University School of Medicine 2014- Assistant professor, Hamamatsu University School of Medicine Publications 1) Takaku Y, Suzuki H, Ohta I, Tsutsui T, Matsumoto H, Shimomura M, Hariyama T, Proc. Bio. Sci. 282(1802), pii: 20142857 (2015). 2) Takaku Y, Hwang JS, Wolf A, Boettger A, Shimizu H, David CN, Gojobori T, Sci. Rep. 3573, Published online (DOI: 1038/srep03573) (2014) 3) Takaku Y, Suzuki H, Ohta I, Ishii D, Muranaka Y, Shimomura M, Hariyama T, Proc. Natl. Acad. Sci. USA 110(19): 7631-7635 (2013).

Figure 1. (A-D) A living Drosophila larva was exposed to high vacuum with electron beam irradiation for 60 min. (F-I) Prior to SEM observation, a different larva (light micrograph in F) was placed in the observation chamber without electron beam irradiation for 60 min. (E, J) TEM images, respectively. Takaku, Y. et al. Proc. Natl. Acad. Sci. 2013, 110(19), 7631-7635.

64

Sponge as a Potential Model of Biomimetics: New perspective

Remi Tsubaki*a

aJapan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa, 237-0061, Japan,


Circulatory system is essential to distribute gas and nutrient throughout body for all organisms. Sponges completely lack specialized organ, however, have vast network of water-filled channel, called “aquiferous system” instead (Fig. 1). They continuously flow ambient water through a vast aquiferous system inside their body, and feed suspended organic particles by filtering water. Despite its critical importance, there are few studies on the sponge aquiferous system and thus its fundamental information still remains unclear. Their dependence on the canal system suggests that the sponge canal system should be optimized for efficient water transportation, which would potentially serve as a model system for designing a water transportation system with high energy efficiency. To elucidate how sponges accomplish efficient water transportation, I investigated the physical structure of sponge canal network and flagella of collar cells which generate water flow. Through our research, several distinct features were found with respect to network robustness.

About Corresponding Author: Dr. Remi TSUBAKI Research and Development Center for Marine Bioscience Japan Agency for Marine-Earth Science and Technology E-mail: [email protected] Telephone: +81 (0)46-867-9661 Fax: +81 (0)46-867-9645 Website: http://jamstec.go.jp/ Address: 2-15, Natsushima, Yokosuka, Kanagawa, 237-0061, Japan Education, Academic Backgrownd and Awards 2013 Ph. D. (Human and Environmental Studies), Kyushu University 2013- Postdoctral researcher, Forestry and Ferest Product Research Institute 2014- Postdoctral researcher, Japan Agency for Marine-Earth Science and Technlog Publications 1) R. Tsubaki, M. Kato, PLOS ONE e108885 (2014) 2) R. Tsubaki et. al., Zoological Science, 31(9), 789-794 (2014) 3) R. Tsubaki, M. Kato, Moleculer Phylogenetics and Evolution, 58, 97-104 (2012)

Fig. 2 Reconstructed 3D image of sponge. Blue structure indicates the aquiferous system.

65

Analysis on social implementation of biomimetics technology in Japan in the global perspective

Ryo Kohsaka*a, Yuta Uchiyamaa, Yoshinori Fujihirab

aTohoku University, bMuroran Institute of Technology


Moving to the next step of biomimetics technology from R&D to social implementation is a global challenge. In the implementation step, understanding accurate trends of the social implementation and developing appropriate strategies are urgent issue. In this study, we analyzed trends of relevant scientific paper publications and patent applications. In order to grasp the characteristics of a global trend of biomimetics, trends of scientific paper publications and patent applications in biomimetics and other emerging technologies were compared. Specifically, trends of scientific paper publications and patent applications are analyzed based on the dataset from the annual report of the Japan Patent Office (2015). In the analysis, we focused on Japan, the USA, European, China and Korea. As a result of the analysis, shares of paper publications and patent applications of Japan in the global context are clarified, and trends of emerging technologies including biomimetics in the countries are identified. In ratios of number of paper publications to patent applications, agriculture technologies and biomimetics is higher than other emerging technologies. However, compared with the USA, European and China, Japan’s share of paper publications in agriculture technologies and biomimetics is lower. One of the issues in Japan is facilitating R&D and paper publications in the fields including biomimetics.

About Corresponding Author: Dr. Ryo KOHSAKA, Associate Prof. Graduate School of Environmental Studies, Tohoku University E-mail: [email protected] Telephone: +81 22 752 2235 Fax: +81 22 752 2236 Website: http://www.4kbro.com/Pages/default.aspx Address: Aoba, 468-1, Aramaki, Aoba-ku, Sendai, 980-0845, Japan Education, Academic Backgrownd and Awards 2008 -12 Associate Professor at Graduate School of Economics, Nagoya City University 2006 -2008 UNEP SCBD (Portfolio: Agricultural and Forest Biodiversity, Sustainable Use) 2004 – 2005 Programme Coordinator/ Post Doc. Univ. Tokyo Chuo Univ. 2000 –2004 Research Fellow at the Institute of Forestry Economics, Freiburg, Germany 1997- 1998 Project Officer at the Regional Environmental Centre for Central and Eastern Europe (REC) in Szentendre, Hungary. Award ) Honoured as REC Life Fellow 2000 Publications 1) R. Kohsaka, Y. Fujihira, R. Furukawa, T. Yamauchi, H. Kobayashi, D. Ishii, Y. Uchiyama, Sustainable Management. 15, 98-112. (2016) (in Japanese) 2) R. Kohsaka, Y. Fujihira, Y. Uchiyama, Kurume University Journal of Commercial Science. 2016, 21, 53-68. (in Japanese)

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Superhydrophobic Coatings Showing Excellent Durability to Harsh Environmental Conditions

Liming Wang, Chihiro Urata, Tomoya Sato, Matt W. England and

Atsushi Hozumi*

National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimo-shidami, Nagoya 463-8560, Japan,


Artificial superhydrophobic surfaces with static contact angles (θS) larger than 150° have attracted much attention due to their practical applications in a variety of engineering fields. However, conventional superhydrophobic surfaces generally lack durability against harsh conditions, such as UV-ozone oxidation, acid/base or organic solvent treatments, resulting in the severe limitations on their practical uses. Therefore, the development of superhydrophobic surfaces showing long-term durability to harsh environmental conditions has been strongly demanded. We have recently developed novel organogels, which we have named “Self-lubricating organogels (SLUGs)”, showing stimulus-responsive multiple-liquid repellency as a result of the syneresis effect. In this study, we report a new class of filaments-covered superhydrophobic coatings showing super-anti-weathering properties based on cross-linked polydymethylsiloxane (PDMS) elastomers infused with silicone oils and a reactive organosilane (propyltrichlorosliane (PTCS)). We used two types of infused liquid, unreactive silicone oils and PTCS, and mixed them thoroughly with PDMS precursors. After curing, transparent silicone elastomers were formed. By exposing them to air, hydrolysis and polycondensation reactions of PTCS with moisture took place on the surfaces, resulting in the formation of hierarchical textured surfaces (Figure (a) and (b)). The surfaces displayed not only superhydrophobicity, but also great resistance to photo-oxidation by 172 nm vacuum UV (VUV) light. After several hours VUV irradiation, the superhydrophobic surfaces became temporally superhydrophilic, but they showed a complete recovery of superhydrophobicity within several hours under ambient conditions.

Dr. Liming WANG. Postdoc in National Institute of Advanced Industrial Science and Technology (AIST),Nagoya. E-mail:[email protected] Telephone: +81 080-7804-1948 Address: 2266-98, Anagahora, Shimo-shidami, Nagoya 463-8560, Japan Education, Academic Backgrownd and Awards 2011 Doctor of Polymer Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Polymer Chemistry and Physics, 2011 2011- 2016 Postdoctoral Research Fellow in Department of Polymer Science and Engineering, University of Massachusetts, Amherst 2016. 5 - Current: Postdoctoral Researcher in National Institute of Advanced Industrial Science and Technology (AIST),Nagoya Publications 1) L. Wang, T. J. McCarthy, Angewandte Chemie-International Edition, 55, 244-24 (2016). 2) L. Wang, T. J. McCarthy, PNAS, 112, 2664-2669 (2015). 3) L. Wang, T. J. McCarthy, Langmuir, 29, 15299-15304 (2013).

20 µm 200 µm

a b

Figure (a) SEM image of a PDMS elastomer surface after formation of micro/nano filaments on the top. (b) Magnified image of (a).

67

Key Materials for Biomimetic Surfaces: Potential of Functionalized Synthetic Janus Clay Nanoplatelets

Matt W. England, Tomoya Sato, Liming Wang, Chihiro Urata,

and Atsushi Hozumi*

National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Nagoya 463-8560, Japan

E-mail: *E-mail:[email protected] Synthetic nano-clay platelets have gained significant attention in materials science as functional additives in composite materials, as they can improve or tune properties at relatively low concentrations. Specifically, aminopropyl (AMP)-functionalized 2:1 phyllosilicate platelets have been shown form composites with drug molecules, proteins, and various polymers, which have shown improved properties, such as toughness and resistance to high temperatures, and bestowed new properties, such as anti-fogging, anti-biofouling, and self-healing. Preparation of such functional clays is a key factor in obtaining biomimetic materials. However, typical synthetic clays only have a single functional group, or randomly ordered poly-functional surfaces. Using a modified ethanolic sol-gel synthesis, we have synthesized ‘Janus’ platelets by first forming self-assembled single-sided 1:1 AMP-functionalized template platelets (width = 50-320 nm, d001 ≈ 1.32 nm) which enable the addition of different functional groups on the opposite side (2:1), via a subsequent sol-gel reaction with various selected silane molecules. These include AMP/Thiol platelets (d001 = 1.62 nm), which can form a stable platelet/polymer hydrogel with polyvinylpyrrolidone (PVP), and AMP/C6 platelets (d001 = 1.78 nm), which can disperse in oil and water, and form stable Pickering emulsions. These ‘Janus’ platelets offer greater selectivity in composite creation, with hundreds of potential iterations for improving properties using various functional groups.

About Corresponding Author: Dr. Matt W. ENGLAND, Advanced Surface and Interface Chemistry Group, National Institute of Advanced Industrial Science and Technology (AIST), E-mail: [email protected] Telephone: +81-52-736-7388 Fax: +81-52-736-7406 Website: https://unit.aist.go.jp/smri/en/group/asichem.html Address: 2266-98, Anagahora, Shimo-shidami, Nagoya 463-8560, Japan Education, Academic Backgrownd and Awards 2014 - Doctor of Chemistry, University of Bristol Publications 1 M. W. England et al., J. Nanosci. Nanotechnol.,16(9), 9166-9172 (2016). 2) M. W. England et al., ACS Appl. Mater. Interfaces, , 8(7), 4318–4322 (2016) 3) M. W. England et al., Chem. Eur. J., 21(25), 9008–9013 (2015).

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Ionic Liquids-Infused Transparent Organogels: Their Unique Optical and Chemical Properties

Tomoya Sato, Liming Wang, Chihiro Urata, Matt. W. England, Atsushi Hozumi*

National Institute of Advanced Industrial Science and Technology (AIST)

E-mail:[email protected] Stimuli-responsive materials, which sometimes shown in biosystems, have recently attracted much attentions because of their unique properties. In particular, thermo-responsive materials showing marked changes in their chemical/physical properties are becoming important for practical applications, such as drug delivery systems, anti-X (X: bio-fouling, icing/snowing, adhesion and so on) surfaces, temperature sensors and smart windows. Herein, we report novel thermo-responsive organogels, showing unusual reversible and repeatable optical properties, which were prepared by simply combining a polyurethane (PU) base material and ionic liquids (ILs) under appropriate conditions. We also studied the reversibility/durability of their optical properties using repeated thermal stress tests. The Figure 1 shows changes in the optical properties of a typical PU-based organogel (PU-IL gel, PU with 25 wt% hydrophobic IL) before and after heating. The PU-IL gel with high transparency became reversibly and repeatedly opaque when heated at 100 °C. Judging from optical microscopy and UV-Vis spectroscopy, this unusual property was probably caused by the micro phase separation of PU and hydrophobic IL, as well as an increased mismatch of refractive indices of the PU matrices and IL at higher temperatures. In addition, their thermo-responsive properties, which were found to occur between 60 and 120 °C, were repeatable/durable after several tens of thermal stimulation cycles.

About Corresponding Author: Dr. Tomoya Sato Researcher, Department of Materials and Chemistry Structural Materials Research Institute, Advanced Surface and Interface Chemistry Group, National Institute of Advanced Industrial Science and Technology (AIST) E-mail: [email protected] Telephone: +81 (0)52-736-7615 Fax: +81 (0)52-736-7594 Website: https://unit.aist.go.jp/smri/ja/group/asichem.html Address: 2266-98 Anagahora, Shimoshidami, Moriya, Nagoya 463-8560, Japan Education, Academic Backgrownd and Awards 2015 Ph. D. Department of Applied Chemistry, Kyushu University, Japan 2015- National Institute of Advanced Industrial Science and Technology (AIST)

Figure 1. Thermo-responsive organogels before and after heating.

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5th nagoya biomimetics international symposium (nabis) · 8. in 2014 won thomson reuters china...

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