The recent review conversed about nano-technology. Nanotechnology is very important in the diagnosis and detection of disease, as nanotechnology is the fifth generation that appeared in the world of electronics, the first generation represented in the use of the electronic lamp, including television, then the discovery of the transistor, and the spread of its wide applications and then the use of integrated circuits, which is a very small piece. Nanotechnology today has reduced the size of many devices, increased their efficiency and numbered their functions. Then the microprocessor, which made a huge revolution in the field of electronics by producing personal computers and silicon chips, and then nanotechnology. Nano-size as the material is made by light etching, cutting, scraping and grinding. Chemical methods can be used that start with single molecules as smaller A unit and assembled into a larger structure. The properties of nanomaterials can be examined and studied and their composition is confirmed using a number of devices and techniques.