Participation in European contract of Laser-Surface-Plasma Interactions laboratory -

NILPRP

2003-2004

National Institute for Lasers, Plasma and Radiation Physics, 77125 Bucharest-Magurele, Romania, Tel: +40(0)21 4574491, Fax: +40(0)21 4574467/4574243, e-mail: mihailes@ifin.nipne.ro

“Surface Improvement of Metal Implants: New Preparation Methods and New Materials” , SIMI G5RD-CT-2000-00423

Partners:-Universite Louis Pasteur, Strasbourg, France-National Institute for Lasers, Plasma and Radiation Physics, Bucharest, Romania-Hebrew University of Jerusalem – The Authority for Research and Development, UJERUS, Israel-DENTAURUM, Ispringen, Germany-Universita degli Studi di Bologna, Italy-PAROGENE Sarl, Strasbourg, France-SAMO SpA, Granarolo dell’Emilia, Italy-BIORA AB, Sweden-Institute for Surface Chemistry, YKI, Stockholm, Sweden-RHODIA Recherches S. A., Courbevoie, France

Duration: February 2001 – September 2004

HA molecule : Ca10(PO4)6OH2

Projection in the (001) base plan of the hydroxyapatite unit cell (hexagonal structure)

How difficult is to deposit CaPs?

- very complex molecules

a = 19.68(1) Å b = 9.50(1) Å c = 6.832(5) Å = 90.21(8)° = 92.52(9)° = 108.32(8)°

Electron microscopy of OCP revealing nano-crystalline domains embedded in an amorphous matrix

X-ray diffraction patterns are in agreement with an amorphous-poor crystalline structure. OCP presence is confirmed by the shoulder around 4.7° of 2θ, corresponding to the (100) reflection of OCP, and by the broad peak centered around 32-33° of 2θ.

Amorphous layer

Cristalline OCP

a)

b)

c)

Titanium

XHRTEM image at the interface of the sample thermally treated at 180°C: c) FFT of the surrounded domain from a); b) enlargement and filtered image of the domain surrounded in a)

5,32

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Diagram 1

Control

Group Ia, OCP

Group Ib, HA:Mn

Group Ic, HA

Average pullout force for CaPs vs. control

Ferromagnetic semiconductors and novel magnetic semiconductor heterostructures for improved knowledge on spintronics, FENIKS G5RD-CT-2001-00535

Parters :-IMEC, Leuven, Belgium-University of Nottingham, UNOTT, United Kingdom-Warsaw University, DMSIFDUW, Poland-Universite Grenoble, UJF-CNRS, France-Institute of Physics, Polish academy of sciences, Warsaw, IF PAN, Poland -Sharp Laboratories Europe, SLE, Oxford, United Kingdom-Wurzburg University, UWUERZ, Deutschland -MADIREL, Marseille, France-Imperial College, STM, United Kingdom-National Institute for Optoelectronics, INOE, Bucharest, Romania-University of Lisbon, FCUL, Portugal-Foundation Research and Technology, FORTH, Heraklion, Greece-National Institute for Lasers, Plasma and Radiation Physics, Bucharest, -Romania -Herriot Watt University, HWU, Edinburgh, United Kingdom-Institute of Research of Non-equilibrium Phenomena, IRPHE/ESM2, Marseille, France-Defense Evaluation and Research Agency, DERA, Malvem, United Kingdom

Duration: September 2001 – March 2005

We could identify a deposition regime for which the obtained structures contain crystalline CrO2

Difractograme of the film deposited from CrO3 target at room temperature, 13Pa

oxygen for a laser fluence of 2.4 J/cm2

SEM micrograph of the film deposited at 300C, 13 Pa O2

for a laser fluence of 2.4 J/cm2

Raman spectroscopy

Raman spectra of the films (Cr8O21 target, 2.4 J/cm2, 13 Pa O2) after four months of exposure to ambient air: a) gold protected film; b) unprotected film

Modified composition of the film after 4 months exposure to air

We studied the stability in time of the:

films protected with gold

versusunprotected films

No modification in the film composition within 4 months of exposure to air

Nanostructured Photonic Sensors NANOPHOS IST-2001-39112

Partners:- NATIONAL RESEARCH FOUNDATION (NHRF), Greece- THALES (TRT-Fr), France- JENASENSORIC E.V. (JENASENSORIC), Germany- CYBERNETIX (CYBERNETIX), France- 3D DIGITAL DESIGN & DEVELOPMENT LTD (3D LTD), UK- FOUNDATION FOR RESEARCH AND TECHNOLOGY - HELLAS (FORTH), Greece- INSTYTUT TECHNOLOGII ELEKTRONOWEJ (IET), Poland- THE WEIZMANN INSTITUTE OF SCIENCE (WIS), Israel- UNIVERSITE DE DROIT, D'ECONOMIE ET DES SCIENCES D'AIX-MARSEILLE (UDESAM-UMR6133), France- UNIVERSITA DEGLI STUDI DI LECCE (UNILE), Italy- NATIONAL INSTITUTE FOR LASERS, PLASMA AND RADIATION PHYSICS (NILPRP), Romania- CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS DR12), France- THE UNIVERSITY OF SOUTHAMPTON (ORC), UK-BAR-ILAN UNIVERSITY (BIU), Israel

Duration: January 2002 – December 2005

Comparison between doped films and undoped films covered with metallic clusters

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Transmittances for TiO2 films doped with Pt

Transmittances for TiO2 films doped with gold (left) and TiO2 films undoped and covered with gold clusters (right)

Transmittances for ZnO films doped with silver (left) and ZnO films undoped and covered with silver clusters (right)

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Nanophotonics to realize molecular-scale technologies PHOREMOST INFSO-IST-511616

Partners:-Laboratorio Europeo di spettroscopie non-lineari, Italy-Fundacio privada Institut de ciences fotoniques, Spain-University of Exeter, UK-Consejo superior de investigaciones cientificas, Spain-University of Southampton, UK-Centro Ricerche Fiat – Societa consortile per azioni, Italy-Bilkent Universitesi, Turkey-Universite de droit, d’economie et des sciences d’Aix-Marseille, France-Koc University, Turkey-Universita degli Studi de Roma “LA Sapienza”, Italy-Centre National de la Recherche Scientifique, France-Vilniaus Pedagoginis Universitetas, Lithuania-Valtion Teknillinen Titkimuskeskus, Finland-Insitute of Solid State Physics of the Russian Academy of Sciences, Russia-Universitaet Hamburg, Germany-Ioffe Physico-Technical Institute of the Russian Academy of Sciences, Russia-Institute of Molecular and Atomis Physics of the National Academy of Sciences, Belarus-Chalmers Tekniska Hogskola AB, Sweden

-Weizmann Institute of Science, Israel-Universite de Montpellier II, France-Kungliga Tekniska Hoegskolan, Sweden-Universitat Politecnica de Catalunya, Spain-Universita degli Studi de Pavia, Italy,-IBM Research GmbH, Switzerland-The Chanchellor, Masters and Scholars of the University of Oxford, UK-National Institute for Lasers, Plasma and Radiation Physics, Romania-Universitaet Dortmund, Germany-Ecole Normale Superieure Cahan, France-Queen’s University Belfast, UK-Nanocomm Limited, Ireland-Foundation for Research and Technology – Hellas, Greece-Stichting voor Fundamenteel Onderzoek der Materie, Netherlands-CORECOM – Consorzio Ricerche Elaborazione Commutazione Ottica Milano, Italy-Bergische Universitaet Wuppertal, Germany

Participation to EoI in FP6:

Enhancement of Photonics Technology by Supra-regional Networking, ENPHOTERN, 33013, NoE

Self molecular assembly in health and medicine, SAM-MED-NET, 34635, IP

Advanced Functional Materials Produced by Pulsed Laser Deposition, AMPLE, 35127, IP

Network of Excellence in Surface Science and Engineering, SuSiE, 35068, NoE

Advanced Laser Micro/Nano Processing, Material Synthesis and Modification, AdLAS, 34663, IP

Ceramic Coatings Resembling Chemistry and nano-topography of the regenerating bone, OSTEOMNEME, STREP

Reinforcement or research capacity in Romanian Centre of Excellence in Photonics, REPHOT, call FP6-2004-ACC-SSA-2, FP6-017001