Nanotechnology:Present & Future Scenario for Healthcare, Genetic Engineering & Smart Material

"Nanotechnology deals with natural and artificial structures on the nanometer scale, i.e.in the range from 1 μm down to 10 A. One nanometer, 1 nm = 10 ° −9m, is roughly the distance from one end to the other of a line of five neighboring atoms in an ordinary solid." In the nanometer scale if the size of a soccer ball(∼ 30 cm = 3 × 10⁻¹m) is reduced 10.000 times we reach the width of a thin human hair(∼ 30 μm = 3 × 10⁻⁵m). If we reduce the size of the hair with the same factor, we reach the width of a carbon nanotube (∼ 3 nm = 3 × 10⁻⁹m). It is quite remarkable, and very exciting indeed, that we today have a technology that involves manipulation of the ultimate building blocks of that seep into many different markets. Nanotechnology has been applied to photo voltaic, MEMS and NEMS, molecular electronics data, ordinary matter: single atom sand molecules.