about advanced nanotechnology

2. Contents:
1. What is Nanotechnology
2. What is Nanofactory
3. Nanoassemblers, Nanosystems
4. Nanomanufacturing
5. Applications
6. Precautions
7. Conclusion

4. What is Nanotechnology?
• An art and science of manipulating matter at the
“nanoscale”.

8. Do you know how it started?
• The ideas and concepts behind
nanoscience and nanotechnology started
with a talk entitled “There’s Plenty of
Room at the Bottom” by physicist
Richard Feynman.
• Feynman described a process in which
scientists would be able to manipulate and
control individual atoms and molecules.Richard Feynman

10. Definition:
Nanofactory is a proposed
system in which
nanomachines would
combine reactive
molecules via
mechanosynthesis to
build larger atomically
precise parts.

11. To build a nanofactory, you need to start with a working
fabricator, a nanoscale device that can combine individual
molecules into useful shapes. Products made by a
nanofactory will be assembled from nanoblocks, which will
be fabricated within the nanofactory.

12. • Nanofactories in nature are found in many bacteria,
and they have evolved to make a wide range of
products, depending on the host’s needs.

13. Graphene-Fed Silkworms Produce a
Super-Strong Silk That Conducts
Electricity:
• Graphene, a carbon nanoparticle considered a “miracle
material,” has shown massive potential in energy,
electronics, medicine, and more.
• The silk threads become even
stronger and tougher when
silkworms are fed carbon
nanotubes and graphene.
• Used in textile applications.

14. Nanofactories in different shapes for
more functions.

20. • On the one hand, a molecular one, as defined by K. Eric
Drexler, is a "proposed device able to guide chemical reactions
by positioning reactive molecules with atomic precision".
• Actually, it is a device that can take one molecule and connect
it to another. A molecular assembler is a kind of molecular
machine programmed by human.
• However, the term "molecular assembler" usually refers to
theoretical human-made devices. If we know the instruction
how to control nanoassemblers, we will make real and
functioning nanofactory.
• On the other hand, a nanoassembler is a miniature sample of a
common conveyor at the factory. But operating principle is the
same.

22. If we tell about nanotechnologies, we also should mention 3-D printer. When you
use it you are restricted with the material and size. But when you use nanofactory
you can make whatever you want and give it certain qualities such as taste, color,
smell and so on. The operation of 3-D printer is slower than “nano” one.

23. What Nanofactories Could Do?
• Greatly Reduce the Costs of Most Manufactured
Products
• Greatly Reduce the Doubling Time for Capital Formation
• Eliminate Industrial Chemical Pollution
• Lower Energy Costs
• Strong, Light Materials Will Open the Space Frontier
• Medical Nanorobots will Cure Diseases and Reverse
Aging
• Potential for Economic and Political Disruption

25. 1.Medicine
2.Electronics
3.Food
4.Space
5.Better Air Quality
6.Cleaner Water etc.,
Applications:

26. Precautions:
It's no doubt that there’re some precautions:
• Nanoweapon system(Bio-Weapon)
• “Gray goo problem”

27. Conclusion:
So, in conclusion, we say that nanotechnologies and nanofactories will
make technical revolution of the 19th century,as well as help us to create a
huge verity of necessary things for us and build society with no social and
political problems. Definitely, it’s hard to hold a nanotechnology action in
our country because it needs a lot of money. A new period is coming – the
epoch of nanotechnologies.

28. B.sreeja
Roll no. 02