Science and technology are advancing everyday with newer innovations being brought in everyday. What remains as a new concept today becomes outdated tomorrow. In recent years there is a revolutionary concept coming in the field of science, the Nanotechnology. It is the science which deals with the material size of about one nanometer which is about one billionth of a meter. It was found that when the materials were reduced to this size their physical and chemical properties changed in a miraculous way. High amount of research is going on in this field and the U.S government is allotting billions of dollars for research in this field. It has changed the conventional saying “think big” to “think small”