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1. Definitions
Michel WAUTELET is a physicist and professor at the University of Mons-Hainaut, Belgium.
Nanoscience and nanotechnology can be defined as the science and technology of nanoscopic systems. The prefix "nano" refers to the nanometer (1 nm = 10
–9
m). The systems considered have one or more dimensions between 1 and a few hundred nanometers. As a reminder, the typical radius of atoms is of the order of 0.1 nm. When particles have dimensions of the order of a nanometre or more, they are called nanoparticles. Nanosciences and nanotechnologies study, manipulate and exploit the properties of systems with dimensions on the order of a few atoms, such as nanoparticles
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