This document summarizes a technical seminar on nanotechnology. It begins with a brief history, noting that the concept was first presented in 1959 and the term was coined in 1974. It then defines nanotechnology as the manipulation of matter on an atomic, molecular and supramolecular scale, allowing control of nano-structures and devices with single-molecule precision. Applications discussed include use of nanotechnology in fabrics to make water-repellent and stain-resistant clothing, in electronics for flexible displays, in mobiles for self-charging phones, and in medicine for targeted drug delivery. Both advantages like strength and durability and disadvantages like potential health risks are outlined.

1. TECHNICAL SEMINAR
ON
“NANO TECHNOLOGY”
D.ABHISHEK

2. HISTORY
•The first ever concept was presented
in 1959 by the famous professor of
physics DR.RICHARD P. FEYNMAN
•The term “Nano Technology” had been
copied by Norio Taniguchi in 1974

3. INTRODUCTION
•Nanotechnology is manipulation of
matter on an atomic, molecular
and supramolecular scale.
•It allows the control of physical
properties of nano-structures and
devices with single-molecule precision

4. •the study of the controlling of matter on an
atomic and molecular scale. Generally
nanotechnology deals with structures sized
between 1 to 100 nanometer in at least one
dimension, and involves developing or modifying
materials or devices within that size.
•A nanometer is one billionth of a meter , roughly
the width of three or four atoms. The average
human hair is about 25,000 nanometers wide

5. NANOBOTS
• It is close to scale of 10-9
• Nanobots are of 1.5 nanometers and since it is microscopic in size it
would probably be necessary for very large numbers of them to work
together to perform any task
• It is used in drug delivery and detection of toxic-components in
environment

7. NANOTECHNOLOGY IN
FABRICS
• Some clothing manufactures are making
water and stain repellent clothing using
nano-sized whiskers in fabrics that
causes water to bead up on the surface
•It is used in manufacturing of bullet proof
jackets
•Making spill and dirt resistant ,
antimicrobial , antibacterial fabrics.

8. NANOTECHNOLOGY IN
ELECTRONICS
• Electrodes made from nanowires enable flate
pannel displays to flexible as well as thinner than
current flat pannel displays.
• Nanolithography is used for fabrications of chips
• E-paper, displays on sunglasses and map on car
wind shield

9. NANOTECHNOLOGY IN
MOBILES
• “morph” a nanotechnology concept device
developed by nokia research center (NRC) and
university of cambridge (UK)
• The morph will be super hydrophobic making it is
extremly dirt repellent
• It will be able to charge itself from available light
sources using photovoltic nanowire grass covering
its surface

10. ADVANTAGES OF
NANOTECHNOLOGY
• We can create the products which are
Stronger
Lighter
Durable
precise

11. DISADVANTAGE OF
NANOTECHNOLOGY
• Nano-particles can get easily into the body through
skin, lungs, digestive system , thus creating free
radicals that can cause cell damage
• The most dangerous nano-application use for
military purposes is the nano-bomb that contain a
deadly viruses that can wipe out a civilization,
country, community

12. OTHER USES
• Cutting tools made of nanocrystalline materials
such as tungsten carbide tantalum carbide are
more wear and erosion-resistant and long lasting
than conventional counterparts
• Silver nanocrystals have been embedded in
bandages to kill bacteria and prevent infection

14. “The next BIG thing is really
small”

15. THANK YOU!!