What is nanowire?
A nanowire is particularly thin wire with a diameter on the regulation of a few nanometers (nm) or less, where 1 nm = 10 -9 meters. Two activities in nanotechnology by which nanowires can be manufactured are suspension and deposition.

A strung up nanowire is held up by the ends in a removed chamber, and then is chemically engraved or impressed with high-speed atoms or molecules to trim down its diameter. Another method involves indenting the surface of a wire in the center of a suspended area, raising the temperature, and then fleshing out the wire while it is near its melting point. A deposited nanowire is fabricated on a surface consisting of some non-conducting material such as plastic or glass. The process is similar to that by which semiconductor chips are mature, except that the result is a linear (one-dimensional) structure rather than a flat (two-dimensional) or solid (three-dimensional) configuration.
Fields likely to benefit from nanotechnology include water purification, sanitation, agriculture, alternative energy (particularly photovoltaic’s), home and business construction, computer manufacturing, communications, and medicine.
A nanowire is a nanostructure with the diameter of the regulation of a nanometer (10-9 meters). It is also explained as the ration of the length to width being greater than 1000. On the other hand nonowire can be as structure that has a very thin thickness of diameter embarrassed to tens of nanometers or less and a “significant wire”. Many different type of wire available in market, including cheep and best insulation conducting material e.g. YBCL, Molecular and super semi conducting material.  
Generally nanowires demonstrate characteristic as (length to width ratio) 1000 or more. Nenowires are often referred to as one dimensional (1-D) materials and also have many physics that are not seen in aggregate of 3-D (3 dimensional) materials. So, the electrons in nenowires are major kept laterally and thus inhabit energy levels that are goes to defer from the traditional continuum of energy levels or brands found in bulk materials.
Atypical features of this major kept sported by certain nanowires clear themselves in discrete value of the electrical conductance. Such discrete values come up from a major mechanical restraint on the number of electrons that can flow through the wire at the nanometer scale. The said discrete value is formulated as:
There is opposite of the resistance unit h/e2, which is around equal to 25812.8 ohms, and concerned to as the von Klitzing constant Rk (after Klaus von Klitzing, the pioneer of exact quantization) since 1990, a fixed conservative value Rk-90 is accepted.
An example of nanowire includes not organic molecular nanowire (Mo6S9-xIx, Li2Mo6Se6)   which can have a diameter of 0.9nm and be hundred of micrometers long.      
There are many appliances where nanowires have an important role in electronic field, opto-electronic and other nano electrical mechanical appliances or devices, as supplements in the advanced compounds, for metallic interrelates in nanoscale quantum devices, as  field-emitters and as commands for biomolecular nanosensors.

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