Information regarding about nanotechnology. 1. What is nanotechnology? The SCENIHR opinion states: Nanotechnology is the term given to those areas of science and engineering where phenomena that take place at dimensions in the nanometre scale are utilised in the design, characterisation, production and application of materials, structures, devices and systems. Although in the natural world there are many examples of structures that exist with nanometre dimensions (hereafter referred to as the nanoscale), including essential molecules within the human body and components of foods, and although many technologies have incidentally involved nanoscale structures for many years, it has only been in the last quarter of a century that it has been possible to actively and intentionally modify molecules and structures within this size range. It is this control at the nanometre scale that distinguishes nanotechnology from other areas of technology. Clearly the various forms of nanotechnology have the potential to make a very significant impact on society. In general it may be assumed that the application of nanotechnology will be very beneficial to individuals and organisations. Many of these applications involve new materials which provide radically different properties through functioning at the nanoscale, where new phenomena are associated with the very large surface area to volume ratios experienced at these dimensions and with quantum effects that are not seen with larger sizes. These include materials in the form of very thin films used in catalysis and electronics, two-dimensional nanotubes and nanowires for optical and magnetic systems, and as nanoparticles used in cosmetics, pharmaceuticals and coatings. The industrial sectors most readily embracing nanotechnology are the information and communications sector, including electronic and optoelectronic fields, food technology, energy technology and the medical products sector, including many different facets of pharmaceuticals and drug delivery systems, diagnostics and medical technology, where the terms nanomedicine and bionanotechnology are already commonplace. Nanotechnology products may also offer novel challengies for the reduction of environmental pollution. However, just as phenomena taking place at the nanoscale may be quite different to those occurring at larger dimensions and may be exploitable for the benefit of mankind, so these newly identified processes and their products may expose the same humans, and the environment in general, to new health risks, possibly involving quite different mechanisms of interference with the physiology of human and environmental species. These possibilities may well be focussed on the fate of free nanoparticles generated in nanotechnology processes and either intentionally or unintentionally released into the environment, or actually delivered directly to individuals through the functioning of a nanotechnology based product. Of special concer

1. Nanotechnology
and Its Impact on
Your Future

2. Why should you know something
about Nanotechnology?
The National Science Foundation
estimates that by the year 2015
there will be a need for 4 million
workers worldwide in the fields of
nanoscience and nanotechnology.
An additional 10 million
workers will be needed in
support areas for these fields.
By 2022, nanotechnology is
expected to be a $6 trillion
“industry”

3. What is a “nano”?
• A nano is one billionth of a meter or 10-9
m
• A normal person can walk 32 kilometers or
about 20 miles in one day. If a person
were shrunk so that they were one
nanometer tall, how long would it take
them to walk the length of a dollar bill?
• 24 years

4. What is Nanotechnology?
• The science of manipulating atoms and molecules to
make new materials and devices.
• Interdisciplinary – where science and engineering
interconnect
• Occurs at the 1-100 nanometer range
– One nanometer is 10-9 meters or about 3 atoms long.
For comparison, a human hair is about 60-80,000
nanometers wide

5. Two Parts of Nanotechnology
• Nanotechnology is often divided into two parts:
– Nanoscience – where researchers learn about the chemical and
physical properties of materials at the 1- 100 nanometer (nm)
scale. Materials at 1-100 nm are called nanostructures. They are
the smallest things that can be made.
– Nanotechnology – where researchers develop and apply
materials at this scale to develop new products or methods; i.e.,
turning nanostructures into useable tools and applications

6. Unique Properties and
Nanotechnology
• Nanotechnology involves the manufacturing and application of
instruments and materials that have unique properties because of
their small size.
• At the nanoscale, properties of materials behave differently and are
said to behave under atomic and molecular rules.
• Researchers are using these unique properties of materials at this
small scale to create new and exciting tools and products in all
areas of science and engineering.

7. Nanofabrication
–Top-down nanofabrication – start with
large material and bring it down to the
nanoscale
–Bottom-up nanofabrication – start with
individual atoms and build upwards to
make a nanostructure

8. Nanotechnology is not New!
Gold nanoparticles in glass are reflected as red
Ancient stained-glass makers knew if they put finely ground gold or silver
in the glass they would get beautiful colors. They used nanosized gold and
silver particles. Optical properties change with the nanoscale.

9. What are some applications
of Nanotechnology?

13. Nano Careers
• Design
• Development
• National security
• Technical support
• Research
• Management
• Packaging
• Energy producer
• Clothing design
Public Service
Fabrication
Patent Attorney
Environment
Sales
Teaching
Testing
Construction
And Many More