Nanotechnology involves science and engineering at the nanoscale, between 1 to 100 nanometers. Richard Feynman first proposed the idea of manipulating individual atoms and molecules in 1959. Modern nanotechnology began in 1981 with the invention of the scanning tunneling microscope, which could see individual atoms. Nanotechnology allows materials to have unusual properties due to their small size, and has many applications in electronics, medicine, energy, and more. It holds great promise but also risks that must be addressed through oversight and regulations.

1. NANO
TECHNOLOGY
PRESENTATION BY
M.DHATHVASHREE AND
-An essence of future

2. WHAT IS NANOTECHNOLOGY?
• Nanotechnology is science, engineering, and
technology conducted at the nanoscale
• Nanoscience and nanotechnology are the study and
application of extremely small things and can be used
across all the other science fields, such as chemistry,
biology, physics, materials science, and engineering.
• The father of nanotechnology is Physicist Richard
Feynman

3. HISTORY BEHIND
NANOTECHNOLOGY
• 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 at an American Physical Society meeting at the California
Institute of Technology (CalTech) on December 29, 1959, long before the
term nanotechnology was used. In his talk, Feynman described a process in
which scientists would be able to manipulate and control individual atoms
and molecules. Over a decade later, in his explorations of ultraprecision
machining, Professor Norio Taniguchi coined the term nanotechnology. It
wasn’t until 1981, with the development of the scanning tunneling
microscope that could “see” individual atoms, that modern nanotechnology

4. NANOMETRE
•Nanos is the greek word for “dwarf”
•Scale of nano materials is between 1
to 100 nanometers
•One nanometer (nm) is one billionth
or 10 -9

5. ORIGIN
•The microscopes needed to see
things at the nanoscale were
invented in the early 1980s
•The scaling tunneling microscope
(STM) and the atomic force
microscope(AFM) gave birth to age of

6. SIGNIFICANCE OF
NANOTECHNOLOGY
•Unusual physical,Chemical and biological
properties can emerge in materials at the
nanoscale
•The bulk properties of materials often change
dramatically with nano ingredients ( For example,
macroscopic gold is inert, whereas at nanoscales
gold becomes extremely reactive and catalytic
and even melts at a lower temperature.

7. ADVANTAGES
• Manufacture lighter stronger and programmable materials.
• Require less energy to produce the conventional materials.
• Produce less waste than with conventional manufacturing
• Greater fuel efficiency in transportation
• Nanocoatings makes surfaces resistant to
corrosion,scratches and radiation.
• Nanoscale devices ( electronic, magnetic, mechanical) and
systems with extraordinary levels of information processing.

8. DISADVANTAGES
•Environmental problems
•Safety hazards
•Health issues

9. APPLICATIONS
• Everyday materials and processes
• Electronics and IT applications
• Medical and health care Applications
• Energy applications
• Environmental remediation
• Future transportation benefits

10. SCOPE
• It has a huge scope in the upcoming generations.
• It is the third highest booming field when compared with
IT and Internet.
• The Indian government has already started Nanoscience
and Nanotechnology initiatives and various funding
agencies like the Department of Science and Technology.
• The areas where a nanotechnologist can seek
employment include biotechnology, agriculture, food,
genetics, space research, medicine and so on.

11. CONCLUSION
• Nanotechnology has been widely studied for its
potential to advance the field of biotechnology and
medical research.
• Regulatory agencies such as the FDA have decided to
oversee the emerging field of nanotechnology through
existing legislative arrangements.
• The decision to refrain from introducing nanospecific
regulatory policies seems to be aimed at encouraging
safe and effective innovations by avoiding
unnecessary regulatory hurdles.