抽象的

Nanotechnology and medicine

Fae`q AA Radwan

Nanotechnology is the science of the small, nanotechnology is the manipulation of matter at the atomic and molecular scale to create many new materials, devices and systems using nanoparticles (nanoscale particle), and it deals with construction of materials with small scale from 1 to 100 nm (1 nm=10-9 m) and at nanoscale, materials start to create their new physical, chemical and biological advanced properties. It has many applications in different fields such as: Medicine, Energy and Electronics, Environment, Healthcare, Water cleaner, Chemical sensors, Fabric, and etc. There are several advantages and disadvantages of nanotechnology: for example some of the advantages are: (a) It protect drugs from being degraded in the body before they reach their target; (b) Enhances the absorption of drugs into the cancerous cells; and (c) Prevent drugs from interacting with normal cells. Some of the disadvantages of nanotechnology are: (a) It is very expensive and its developing cost is high; (b) Its manufacturing is difficult.