rials (XRD&TEM), carbon nano tubes (CNTs), Applications of Nano Materials. Rhaicrd Feynman was the first person to suggest that nanotechnology was a possibility. First, Prof.Norio Taniguchi of Japan in 1974 used the word nano technology to describe the extension of traditional silicon machining down into region smaller than one micron. The word “nano” is a Greek word and meaning is dwarf(small). The prefix nano means “ one billionth” or 10-9 meter. Size limitation of nano material is the 1-100 nm range.