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Nanotechnology or nanotech is the use of matter on an atomicmolecularand supramolecular scale for industrial purposes. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products, also now referred to as molecular nanotechnology. This definition reflects the fact that quantum mechanical effects are important at this quantum-realm scale, and so the definition shifted from a particular technological goal to a research category inclusive of all types of research and technologies that deal with the special Comstructional of matter which occur below Discover The Field of Engineering Constructional Engineering given size threshold.
It is therefore common to see the plural form "nanotechnologies" as well as "nanoscale technologies" to refer to the broad range of research and applications whose common trait is size.
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Nanotechnology as Engineeering by size is naturally broad, including fields of science as diverse as surface scienceorganic chemistrymolecular biologysemiconductor physicsenergy storage[3] [4] engineering[5] microfabrication[6] and molecular engineering. Scientists currently debate the future implications of nanotechnology. Nanotechnology may be able to create many new materials and devices with a vast range of applicationssuch as in nanomedicinenanoelectronicsbiomaterials energy production, and consumer products. On the other hand, nanotechnology raises many of the same issues as any new technology, including concerns about the toxicity and environmental impact of nanomaterials, [9] and their potential effects on global economics, as well as speculation about various doomsday scenarios.
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These concerns have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted. The concepts that seeded nanotechnology were first discussed in by renowned physicist Richard Feynman in his talk There's Plenty of Room at the Bottomin which he described the possibility of EEngineering via direct manipulation of atoms.
The term "nano-technology" was first used by Norio Taniguchi inthough it was not widely known. Inspired by Feynman's concepts, K. Eric Drexler used the term "nanotechnology" in his book Engines of Creation: The Coming Era of Nanotechnologywhich proposed the idea of a nanoscale "assembler" which would be able to build a copy of itself and of other items of arbitrary complexity with atomic control. Also inDrexler co-founded The Foresight Institute with which he is no longer affiliated to help increase public awareness and understanding of nanotechnology concepts and implications. The emergence of nanotechnology as a field in the s occurred through convergence of Drexler's theoretical and public work, which developed and popularized a conceptual framework for nanotechnology, and high-visibility experimental advances that drew additional wide-scale attention to the prospects of atomic control of matter.]
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