Nanoscience, Nanotechnology, and Chemistry
| Institution | UNIVERSITY |
| Course | BACHELOR OF SCIENCE... |
| Year | 4th Year |
| Semester | Unknown |
| Posted By | stephen oyake rabilo |
| File Type | |
| Pages | 8 Pages |
| File Size | 556 KB |
| Views | 8428 |
| Downloads | 1 |
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Description
Nanoscience is the emerging science of objects that
are intermediate in size between the largest molecules and
the smallest structures that can be fabricated by current
photolithography; that is, the science of objects with smallest dimensions ranging from a few nanometers to less than
100 nanometers.[1–3] In chemistry, this range of sizes has historically been associated with colloids, micelles, polymer
molecules, phase-separated regions in block copolymers,
and similar structures—typically, very large molecules, or
aggregates of many molecules. More recently, structures
such as buckytubes, silicon nanorods, and compound semi conductor quantum dots have emerged as particularly interesting classes of nanostructures. In physics and electrical engineering, nanoscience is most often associated with quantum behavior, and the behavior of electrons and photons in
nanoscale structures. Biology and biochemistry also have a
deep interest in nanostructures as components of the cell;
many of the most interesting structures in biology—from
DNA and viruses to subcellular organelles and gap junctions—can be considered as nanostructures.
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Nano
Many authorities predict that applications of nanotechnologies will ultimately pervade virtually every aspect of life and will enable dramatic advances to be realized in most areas of communication, health, manufacturing, materials and knowledge-based technologies. Even if this is only partially true, there is an obvious need to provide industry and research with suitable tools to assist the development, application and communication of the technologies. One essential tool in this armoury will be the harmonization of the terminology and definitions used in order to promote their common understanding and consistent
usage. This terminology includes terms that are either specific to the sector covered by the title or are used with a specific meaning in the field of nanotechnology. It is one of a series of terminology PASs covering many different aspects of nanotechnologies.
This terminology attempts not to include terms that are used in a
manner consistent with a definition given in the Oxford English
Dictionary [1], and terms that already have well established meanings and to which the addition of the prefix “nano” changes only the scale to which they apply but does not otherwise change their meaningThe multidisciplinary nature of nanotechnologies can lead to confusion as to the precise meaning of some terms because of differences in usage between disciplines. Users are advised that, in order to support the standardization of terminology, this PAS provides single definitions wherever possible
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