Ppt 5

2,315 views

Published on

Nanotechnology

Published in: Engineering, Technology, Business
0 Comments
3 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,315
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
162
Comments
0
Likes
3
Embeds 0
No embeds

No notes for slide

Ppt 5

  1. 1. Nanotechnology Group
  2. 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. 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. 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. 5. Example for Bottom-up and Top-down approach
  6. 6. Nano materials Nano powders - building blocks of nano materials (particles less than 100 nm in size)
  7. 7. Applications of Nano-technology • Chemistry • Engineering • Electronics • Textile • Biomedical • Aerospace
  8. 8. Applications in science ,biology,chemistry,Aerospace
  9. 9. Applications in textile and electronics
  10. 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. 11. Carbon nanotubes (sensors, fuel cells, computers and televisions) Nano membrane filtration systems (safe, clean,
  12. 12. Carbon Nanotube (CNT)
  13. 13. Properties of Nanomaterials • Physical properties • Chemical properties • Electrical properties • Optical properties
  14. 14. Example of Physical property
  15. 15. Example of Optical property Gold particles
  16. 16. By Mahesh Thank you...!!!

×