Nanotechnology is often referred as nanotech. In nanotechnology matters of atomic scale, molecular scale and supra-molecular scale are manipulated. According to the earliest description related to nanotechnology, it is referred that technological goal of nanotechnology is to manipulate atoms and molecule with precision. Such manipulation is done in order to fabricate macro scale products. Fabricating macro scale products is now developed as an individual stream of nanotechnology that is now referred as molecular nanotechnology.