Nanotechnology

 (a) Nanoscience

It is the study of structures and materials that are of nanoscale sizes. 1nm = 10-9 m.

The biological, physical and chemical properties of matter improve significantly at nano levels.

b) Nanotechnology: It is defined as the design, characterization, production and application of structures, devices and systems which range between 1 nanometer and 100 nanometers in size.

c) Nanomaterial:

Material having structural components with at least one dimension in the nanometer scale that is 1-100 nm They are larger in size than a single atom but smaller than bacteria and cells. They can be nanoparticles, nanowires or nanotubes.