Simply Nano means small.Nanotechnology
is the art and science of manipulating matter at the atomic or molecular
scale and may lead to significant improvements in technologies for
protecting the environment and it is the understanding and control of
matter at the nanoscale, at dimensions between approximately 1 and 100
nanometers*, where unique phenomena enable novel applications.
What is nanometer ?
One nanometer (nm) is 10-9 meter
(a mµ ) .It is the size of atoms and molecules . It takes about 3-10
atoms to span the length of a nanometer. In comparison, the diameter of a
human hair is about 20,000 nm wide and a smoke particle is about 1,000
nm in diameter.
Advantages of Nanotechnology
Certain nanostructures can recognize
diseased cells and deliver drugs directly to cancerous tumors without
harming healthy cells or organs.
New solar panels incorporating nanotechnology are far more efficient
than standard designs in converting sunlight to electricity, promising
much more economical solar power in the future.
Researchers have discovered how ultrasmall specks of rust can help remove arsenic from drinking water.
For environmental cleanup, researchers
have developed a nanofabric that is woven from tiny wires and can absorb
20 times its weight in oil.
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