Inculcate 2013 ppt final
- 1. Big Wonders of a Small World
- 2. The biggest thing about me is being SMALL !
- 4. But can we see ATOMS?
- 5. Richard Feynman There is plenty of room at the bottom!
- 6. Scanning Tunneling Microscope IBM Logo
- 7. So what’s nanotechnology? The science of making useful stuff that does work on the nanometre length scale.
- 8. Kilometers (km) Meter (m) Centimeter (cm)
- 9. Nanometer (nm) 1 kilometer = 1000 m 1 meter= 100 cm 1 meter 1000000000 1 nanometer =
- 10. Single Hair Width = 0.1 mm = 100 micrometers = 100,000 nanometers ! 1 nanometer = one billionth (10-9) meter
- 11. Nano everywhere… Nano car Nano ipod Nano= dwarf
- 12. Combination of all sciences
- 13. Why Nano? Very high surface area Chemical reactivity changes Physical properties like colour changes.
- 14. All that glitters… Ordinary Gold Nano gold • Why? – Different thicknesses of materials reflect and absorb light differently
- 15. History Lycurgus Cup Stained Glass
- 16. Disadvantages 1. Pollution 2. Wastage of energy How nano particles can be made? Top down Bottom-Up
- 17. Applications of nanotechnology In medicine Quantum dots for Cancer detection Early tumor detection, studied in mice
- 18. Drug Delivery
- 19. New Wonder Materials Carbon Nanotubes High conductivity High tensile strength compared to steel.
- 20. Solar Cells Nanotechnology Pollution Prevention New fabrics
- 21. QUESTIONS