Download - Nanotechnology Introduction
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College of EngineeringEngineering Education Innovation Center
Nanotechnology Introduction
Pre Reading Slides
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What is Nanotechnology?• Research and technology development at the
atomic or molecular level, in the length scale of approximately 1 to 100 nanometer range (NNI Definition)
• Provides a fundamental understanding of phenomena and materials at the nanoscale
• The National Nanotechnology Initiative (NNI) is a federal R&D program established to coordinate the multi-agency efforts in nanoscale science, engineering, and technology.
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Understanding Size – 1 meter
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Understanding Size – 10 cm (10-1 m)
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Understanding Size – 1 cm (10-2 m)
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Understanding Size – 100 μm (10-4 m)
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Understanding Size – 10 μm (10-5 m)
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Understanding Size – 1 μm (10-2 m)
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Understanding Size – 100 nm (10-7 m)
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Understanding Size – 10 nm (10-8 m)
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Understanding Size – 1 nm (10-9 m)
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Nanotechnology Applications• Computing – increases in memory densities and processor speeds• Manufacturing – improved techniques for top-down and bottom-up nano-manufacturing
– Top-Down : Conventional manufacturing processess at a reduced scale.– Bottom-Up: Making materials and products from the bottom-up, that is, by building them up from atoms
and molecules.• Medical – biological applications include :
DNA analysis and detection of HIV, diabetes, pregnancy,etc.Detect and treat cancerous cells by nano-engineered devices
• Environmental – cleaning water and air to higher levels of purity– Removing the finest contaminants from water and air to promote a cleaner environment by nano-filtering
• Energy – improving the efficiency of solar cells• Aerospace and defense – applications include detection of deadly agents such as saran gas (biochips for
detection of hazardous chemical and biological agents)
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Implantable Sensors
CardioMEMS microchip transmits blood flow and pressure wirelessly
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Retina Implants
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Cochlear Implants
•Have coatings to minimize rejection/infection in the body.
•Have finer electrode arrays.
•Have on board signal processing unit.
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Top-Down Nano-Manufacturing - MEMS
Micro-Electro-Mechanical Systems (MEMS) is the integration of mechanical elements, sensors, actuators, and electronics on a common silicon substrate through microfabrication technology
2 mm
Right: Micromanufactured gear next to a housefly
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Nanotechnology at OSU• Nanobiotechnology
– Nanoscale Science and Engineering Center for Affordable Nanoengineering of Polymer Biomedical Devices
http://www.nsec.ohio-state.edu/ Prof. L. James Lee, Director
• Nanocomposite Materials– ChBE, MSE, ME, ISWE, Chemistry
• Photonics, Nanoelectronics, Optoelectronics– ECE, Physics, Chemistry
• Center for Multifunctional Polymer Nanomaterials and Devices (CMPND)– Collaboration among OSU, UAkron, UDayton, and Ohio Industry. Prof. L. James Lee,
Director