Nanotechnology is the manipulation or the engineering of functional matter on an atomic, molecular, and supramolecular scale. It is a science, engineering and technology conducted at Nanoscale level that involves the designing, manipulating and producing of very small objects or structures (products) ranged on the level of 100 nanometers. Nanoscience and nanotechnology are the study and application of extremely small things and can be used across all the other science fields, such as chemistry, biology, physics, materials science, and engineering. It’s hard to imagine just how small nanotechnology is. One nanometer is a billionth of a meter, or 10-9 of a meter. Here are a few illustrative examples: There are 25,400,000 nanometers in an inch, A sheet of newspaper is about 100,000 nanometers thick and On a comparative scale, if a marble were a nanometer, then one meter would be the size of the Earth. Nanoscience and nanotechnology involve the ability to see and to control individual atoms and molecules.