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Nanotechnology

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A brief presentation on Nanotechnology by Richik Mondal, proudly presented by Biomedicz (www.biomedicz.com).

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Nanotechnology

  1. 1. Presented by : Richik Mondal Department: BME Netaji Subhash Engineering College
  2. 2. • Nanotechnology is engineering at the molecular (groups of atoms) level • It is the collective term for a range of technologies, techniques and processes that involve the manipulation of matter at the smallest scale (from 1 to 100 nm2) With 15,342 atoms, this parallel-shaft speed reducer gear is one of the largest nanomechanical devices ever modeled
  3. 3. Human Hair 75 µm FeatureSize 10nm 100nm 1µm 10µm 1nm 0.1nm 100µm NANOTECHNOLOGY:SIZE & SCALE Plant and Animal Cells Most Bacteria Transistor 0.18µm Virus Proteins Lysozyme Carbon Nano-tubes
  4. 4. PIONEERS OF NANOTECHNOLOGY In 1959 Richard Feynman presented ideas for creating Nano scale machines Norio Taniguchi introduced the term ‘nanotechnology’ 1980s, development in this field was greatly enhanced with advances in electron microscopy
  5. 5. APPROACHES IN NANOTECHNOLOGY Top-down Approach Creating Nano-scale materials by physically or chemically breaking down larger materials Bottom-up Approach Assembling Nano materials atom- by-atom or molecule-by molecule (self assembling)
  6. 6. ASPECTS OF NANOTECHNOLOGY THREE DISTINCT ASPECTS Direct Application of novel, Nano engineered artifacts Ex : Electronic & photonic circuits Indirect Progressive miniaturization of existing technologies Ex : Nano bots, cosmetics Conceptual All materials & processes are considered from a molecular viewpoint Ex : Universal manufacturing model
  7. 7. NANO MATERIALS Porous metallic ‘nanocubes’ store large amounts of H2 Nanoparticles of gold for new catalysts The scale of nanopowders www.cordis.lu/nanotechnology Nano powders - building blocks of nano materials (particles less than 100 nm in size)
  8. 8. Carbon nanotubes (sensors, fuel cells, computers and t televisions) Nano membrane filtration systems (safe, clean, affordable water)
  9. 9. Molecular electronic ‘cross bar latches’ (tiny Nano devices) Quantum dots a & Artificial atoms (small devices that contain a tiny ree ee droplets of free electrons)
  10. 10. APPLICATIONS Medicine Ex. Nano biotechnology Energy ex. Renewable energy Electronics and information technologies
  11. 11. Military and security applications Consumer goodsChemistry and Environment
  12. 12. NANOTECHNOLOGY 2009 2010 2015 CAGR% 2010 - 2015 Nano materials 9,027.2 9,887.9 19,621.7 14.7 Nanotools 2,613.1 5,797.2 6,812.5 3.3 Nanodevices 31.0 35.4 233.7 45.9 TOTAL 11,671.3 15,720.5 26,667.9 11.1 Global Nanotechnology Market by Type, Through to 2015 (USD $ Million) Applications of Nanotechnology, 2015
  13. 13. Nano materials have an impact on sectors such as a Health,IT,Energy fields. The major drivers for the nanotechnologies in energy sector for the need of security and sustainability of energy supply, and growing consumer and government awareness of the implications of climate change. Nanomaterials will also contribute to the development of new drugs, therapies, and cures for currently chronic and fatal illnesses The application of nanotechnologies has the widespread of vast capability and assurance for advanced diagnostics, improved public health and new therapeutic treatments.
  14. 14. Development of useful applications for Nano scale phenomena; Regulatory, legal, political and ethical issues; Competition with established micro scale technologies; License of proof-of-concept Nano tools, delivery systems and products; Intellectual property protection, and skilling of patent and technology transfer offices; Potential internal reluctance to embrace nanotechnologies and Nano tools within businesses; Undertaking nanotechnology R&D in a way that pro-actively and meaningfully engages with society; Large-scale production cost challenges; Cost premium over existing products; Need for multidisciplinary infrastructure and researchers; Safety and toxicity and the effective management of the potential risks of manufactured Nano materials; Public and consumer concern about safety and resulting consumer activism that might inhibit commercial investment in nanotechnology-based products.
  15. 15. Growth and demand for clean technology and alternative energy products are likely to be stimulated by the introduction of nanotechnologies in the near future, enhancing efficacies of technologies embraced by the industry, and displacing older technologies and business enterprises relying on them. Nanotechnologies are expected to have a large impact on the health care industry The applications of Convergence of Nano Technologies and products in the filed of medicine, dentistry and diagnostics.
  16. 16. Nano tools refers the technologies of enabled services of Engineering, envision of scientists, and influence of atoms. The Nano scale is the most powerful and efficient tools of Nanotechnology. Commerical Nano tools Nano manipulators Near-field optical microscopes; Nano machining tools ; Advanced optical lithography tools.
  17. 17. HEALTH AND ENVIRONMENTAL IMPACTS Health risks Medical application of nanoparticles  ex: enhance drug delivery Some nanoparticles —freely mobile  Negative health and environmental impacts

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