Nanotechnology is a kind of science and technology that uses a single atom and molecule to make substances. It studies the properties and applications of materials with structural dimensions ranging from 1 to 100 nm. Nanotechnology is based on many modern advanced technologies.

It is a combination of dynamic science and modern science and technology, and nano-science and technology will trigger a series of new science and technology, such as nano-physics, nano-biology, nano-chemistry, nano-electronics, nano-processing technology and nano-metrology.

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Nanotechnology has been paid more and more attention by scientific research and industry. Research shows that 89% of the 960 most remarkable scientific research directions in the world have been related to nanotechnology since the 20th century.

Nanoscience, as a frontier, basic and platform science, has provided innovative impetus for seven basic disciplines, such as physics, materials, chemistry, energy science, life science, pharmacology and toxicology, and engineering, and has become one of the most innovative scientific research fields of mankind and an important source of revolutionary industrial manufacturing technology.

Scientists have found that at the nano scale, materials will show completely different physical, chemical and biological characteristics from the macro scale.

For example, alloys with low strength or brittleness will obtain high strength and ductility, compounds with low chemical activity will become powerful catalysts, and semiconductors that cannot be excited by light will become efficient light sources. In a word, the reduction of scale makes nano-materials show strange characteristics different from macro-materials and single isolated atoms, as if they have "special functions"

Baidu encyclopedia-nanotechnology

People's Network-Nano-technology "Strive for Big with Small" (Open Book Learning New)