Nanotechnology involves manipulating materials at the nanoscale, or less than 100 nanometers. It has the potential to revolutionize fields like medicine, materials, and computing. While it promises to cure diseases, make stronger and cheaper materials, and speed up computers, it also faces challenges like high costs, risks to health from carbon nanotubes, and potential job losses. Overall, nanotechnology will continue driving scientific progress by allowing greater understanding and control of the natural world at the atomic scale.

2. NANOTECHNOLOGY
OVERVIEW
 WHAT IS NANOTECHNOLOGY?
 NEED FOR NANOTECHNOLOGY?
 HISTORY OF NANOTECHNOLOGY
 ADVANTAGES
 DISADVANTAGES
 CONCLUSION

3. What is Nano technology?
 The branch of that deals with dimensions and tolerances of less than
100 nanometres, especially the manipulation of individual atoms and
molecules.
Nanotechnology is technique of design, production of devices
and system by controlling the shape and size at the nanometre
scale.

4. NEED FOR NANO TECHNOLOGY?
Allows the placement of small structures placed with precision ,
simplicity and low cost
Leads to economic growth
Enhances national security
Improves the quality of life
Leads to create jobs

5. History of Nanotechnology
 2000 Years Ago – Sulfide Nano crystals used by Greeks and
Romans to dye hair
 1000 Years Ago – Gold nanoparticles of different sizes used
produce different colours in stained glass windows
 1959 –”There is plenty of rooms at the bottoms” by R. Feynman
 1974 – “Nanotechnology” – Norio Taniguchi uses the terms
nanotechnology for the first time
 1983 – IBM Develops Scanning Tunneling Microscope
 1985 – “Buckyball” – Scientists at Rice University and University
of Sussex discover C60.
 1986 – “Engines of Creation” – First book on nanotechnology by
K. Eric Drexler. Atomic Force Microscope invented by Binnig,
Quote and Gerber.
 1989 – IBM logo made with individual atoms.
 1991 – Carbon nanotube discovered by S. Ijima
 1999 – “Nano medicine” – 1st Nano medicine book by R. Freitas

6. Advantages

7. Advantages
Medical
• End of illnesses (I . E . cancer, heart, disease)
• Universal immunity (I . E. aids, flu)
• Body Sculpting
(I . E . change your appearance)

8. Advantages
Material
With NT, we can create unique materials and products which are:
 Stronger
 Lighter
 Cheaper
 Durable
 Precise

9. Advantages
 Industrial
• Computers can become a billion times faster and
a million times smaller
• Automatic Pollution Clean up
• Manufacturing at almost no cost

10. Disadvantages

11. Disadvantages
• Loss of jobs (in manufacturing, farming, etc.)
• Carbon Nanotubes could infection of lungs
• It has very high initial investment costs along with high
manufacturing costs
• Atomic weapons could be more accessible and destructive

12. CONCLUSION
• Nanotechnology helps to understand the
world around us, and will provide inspiration
and drive for many generations of scientists.
• Thus the future generation is going to
continue the fantastic voyage with Nano
technology in advanced level making life
easier.