Nanotechnology is developing rapidly and is an area of special interest among researchers and academicians. As a result it has great possibility for producing improvements and innovations in many areas of life by providing better way of living. Nanotechnology presents the cutting edge of a new technology that will find usage in medicine, space exploration, communications, manufacturing, and almost every other aspect of modern society. Tools and techniques used in this technology projects towards placing every atom and molecule in a desired place. On this basis molecular machinery is created thereby resulting in manufacturing revolution. The word Nanotechnology was originated from a Greek world which means "dwarf " i.e one billionth of a meter.

Nanotechnology is a catch-all phrase for materials and devices that operate at the nanoscale. In the metric system of measurement, Nano equals a billionth and therefore a nanometer is one-billionth of a meter. References to nano materials, nanoelectronics, nano devices and nanopowders simply mean the material or activity can be measured in nanometers. To appreciate the size, a human red blood cell is over 2,000 nm long, virtually outside the nanoscale range. A strand of human hair is roughly 75,000 nm and at least 10 hydrogen atoms lined end to end makes one nano meter. That means we are dealing with things that includes anything smaller than 100 nano meter with novel properties. Understanding this technology means learning small.veryvery small which is absolutely different from a world that was uptill now based on thinking big. Nanotechnology is not only making things that are smaller, faster or stronger but also making something completely new and with better properties, or making machines that will lead to new manufacturing paradigms.

Nanoscience and nanotechnology are an extension of the field of materials science. Physics, mechanical engineering, bioengineering, and chemical engineering departments are leading breakthroughs in nanotechnology. The related term nanotechnology is used to describe the interdisciplinary fields of science devoted to the study of nanoscale phenomena employed in nanotechnology. The study of nanoscale systems promises to lead to fundamentally new advances in science and engineering and in our understanding of biological, environmental, and planetary systems. It will redirect our scientific approach toward more generic and interdisciplinary research. Nanoscience is at the unexplored frontiers of science and engineering, and it offers one of the most exciting opportunities for innovation in technology.