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Ppt 5

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Nanotechnology

Nanotechnology

Published in: Engineering, Technology, Business

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Transcript

  • 1. Nanotechnology Group
  • 2. Nanotechnology….? • 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 )
  • 3. History of nanotechnology In 1959 Richrad 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
  • 4. 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)
  • 5. Example for Bottom-up and Top-down approach
  • 6. Nano materials Nano powders - building blocks of nano materials (particles less than 100 nm in size)
  • 7. Applications of Nano-technology • Chemistry • Engineering • Electronics • Textile • Biomedical • Aerospace
  • 8. Applications in science ,biology,chemistry,Aerospace
  • 9. Applications in textile and electronics
  • 10. Nanotechnology Uses Plant production Ex: Delivery of DNA to plants Animal Production Ex: Nano tube sensors to detect hormone level changes Animal or Plant Health Ex: Detect pathogens etc... Animal or Plant Health Ex: Detect pathogens etc...
  • 11. Carbon nanotubes (sensors, fuel cells, computers and televisions) Nano membrane filtration systems (safe, clean,
  • 12. Carbon Nanotube (CNT)
  • 13. Properties of Nanomaterials • Physical properties • Chemical properties • Electrical properties • Optical properties
  • 14. Example of Physical property
  • 15. Example of Optical property Gold particles
  • 16. By Mahesh Thank you...!!!