ABSTRACT
Nanoscience is the study of the performance of ultra-small autonomous structures. The nanoscience domain is typically viewed as having dimensions ranging between 1 nm and 100 nm. One nanometer (1 nm) is one billionth of a meter and one millionth of a millimeter. It is a very small distance. in fact, it is a length comparable to the size of individual atoms. One gold atom has a diameter of ≈ 0.144 nm. Seven gold atoms placed in a line and touching would extend for about 1 nm. For comparison, the cross sectional diameter of a strand of a human DNA molecule is about 2.5 nm, the diameter of a blood cell is about 7,000 nm and the diameter of a human hair is in the range of 80,000 to 100,000 nm.
