Saturday, February 28, 2009

what is Nanotechnology ?

Nanotechnology describes science of smallest tiny particles which merge together and provides a huge energy power. One nanometer is a millionth of a millimeter or about one eighty thousandth the width of a human hair. Nanomaterials can be stronger or lighter, or conduct heat or electricity in a different way. They can even change color; particles of gold can appear red, blue or gold, depending on their size. The Main Use of this technology is molecular electronics, data storage, catalysis and biotechnology. The main Sectors where these technologies were used are medical and fabricating.

Because of the opportunities nanotechnology offers in creating new features and functions, it is already providing the solutions to many long-standing medical, social and environmental problems. The word “nanotechnology” has become very popular and is used to describe many types of research where the characteristic dimensions are less than about 1,000 nanometers. In its original sense, ‘nanotechnology’ refers to the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products.

If we go through in details there were main Four generation of Nano Technologies ,The First one is Passive Nanostructure(In the year 2000).Second One is Active nanostructure (In the year 2005).Third one is System Of nanostructure(In the year 2010) and last Fourth one is Molecular Nano system(In the year 2015).

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