Nanotechnology refers to manipulating matter on the nanoscale, which is 1 to 100 nanometers. Richard Feynman first suggested in 1959 that devices could be built atom by atom. Nanotechnology was popularized by K Eric Drexler in 1986. It has since exploded in research and applications. Nanotechnology works at the nanoscale and can be used across many fields like chemistry, biology, physics and engineering. It deals with small sizes that exhibit unique properties due to their size. Control of structure and composition at the nanoscale allows control of properties. Nanotechnology has many applications in medicine, energy, fabrics, technology and consumer goods. It promises to revolutionize these fields by enabling targeted drug delivery, more efficient solar panels and batteries

1. Nanotechnology
Presented By
Asif Mahmud
B.Sc in Mechacnical Engineering
Dhaka University of Engineering & Technology, Gazipur-1700,
Dhaka, Bangladesh.

2. Abstract
Nanotechnology draws its name from the prefix "nano". A nanometer is one-billionth of a meter.
Nanotechnology refers to manipulating the structure of matter on a length scale of some small
number of nanometers. Richard Feynman was the first scientist to suggest (in 1959) that devices and
materials could someday be fabricated to atomic specifications. "The principles of physics, as far as I
can see, do not speak against the possibility of maneuvering things atom by atom." This concept was
expanded and popularized in a 1986 book Engines of Creation by K Eric Drexler, who applied the
term nanotechnology to Feynman's vision.
From the mid-1980s on progress in nanometer-scale science and technology exploded, and the term
nanotechnology was appropriated by researchers, media, businesses, and funding agencies to refer
to any technology.

3. What is Nanotechnology ?
 Nanotechnology is science, engineering, and technology conducted at the
nano-scale, which is about 1 to 100 nanometers.
 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.
Features
There are many different views of precisely what is included in nanotechnology.
In general , however, most agree that three things are important:
1. Small size, measured in 100s of nanometers or less.
2. Unique properties because of the small size.
3. Control the structure and composition on the nm scale in order to control
the properties.

4. Fields of Nanotechnology
Medicine
Energy
Fabric
Technology
Consumer Goods

5. Medicine
Researchers are developing
customized nanoparticles the size
of molecules that can deliver drugs
directly to diseased cells such as
cancer cells in our body. When it's
perfected, this method should
greatly reduce the damage
treatment such as chemotherapy
does to a patient's healthy cells.

6. Energy
 Nanotechnology based solar panels are more efficient.
 Thin-film solar electric panels.
 Nanotechnology is improving the efficiency of fuel
production.
 Nanotechnology is already being used in numerous new
kinds of batteries.
 Carbon nanotubes are used in windmill.

7. Fabric
 Composite fabric
 Silver nanoparticles
 Nano pores
 Nanoparticles that provide a "lotus plant"
effect

8. Technology
 Applied to….
Computing, communications and other electronics
applications.
 To provide….
Faster, smaller and more portable systems that can
manage and store larger and larger amounts of
information.

9. Consumer Goods
Materials get more……
 Stronger
 Lighter
 More durable
 More reactive
 More sievelike.

10. Conclusion
As a conclusion to this topic I would like to say that Nanotechnology is a brand new
technology that has just began. It is a revolutionary science that will change all what
we knew before. The future that we were watching just in science fiction movies will
in the near future be real. Nanotechnology covers a lot of domains today and will cover
a lot more in the near future. It is infinitely big and will make a lot of inventions come
true like teleportation for example which scientists are working on today.
THANK YOU