Nanotechnology.

Nanotechnology is a field of applied science devoted to the control and manipulation of matter at a scale smaller than one micrometer, ie at the level of atoms and molecules (nano).

The most usual is that such manipulation occurs in a range between one hundred nanometers. To get an idea of how small a nanobot that can be more or less a nanobot 50 nm is the size of 5 layers of molecules or atoms (depending on what is done nanobot). nano-is a Greek prefix that indicates a degree, not an object, so that nanotechnology is characterized as essentially a multidisciplinary field, cohesive and exclusively by the scale of the subject with which he works.