Nanowire
hideA nanowire is a nanostructure, with the diameter of the order of a nanometer (10−9 meters). Alternatively, nanowires can be defined as structures that have a thickness or diameter constrained to tens of nanometers or less and an unconstrained length. At these scales, quantum mechanical effects are important — hence such wires are also known as "quantum wires". Many different types of nanowires exist, including metallic (e.g., Ni, Pt, Au), semiconducting (e.g., Si, InP, GaN, etc.), and insulating (e.g., SiO2,TiO2). Molecular nanowires are composed of repeating molecular units either organic (e.g. DNA) or inorganic (e.g. Mo6S9-xIx).
The nanowires could be used, in the near future, to link tiny components into extremely small circuits. Using nanotechnology, such components could be created out of chemical compounds.
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News tagged with nanowires
Understanding mechanical properties of silicon nanowires paves way for nanodevices
Nanotechnology / Nanomaterials
Nov 11, 2009 |
3.3 / 5 (3) |
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Silicon nanowires are attracting significant attention from the electronics industry due to the drive for ever-smaller electronic devices, from cell phones to computers. The operation of these future devices, ...
Roadrunner supercomputer simulates nanoscale material failure
Oct 29, 2009 |
4 / 5 (1) |
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Very tiny wires, called nanowires, made from such metals as silver and gold, may play a crucial role as electrical or mechanical switches in the development of future-generation ultrasmall nanodevices.
New material could efficiently power tiny generators
Oct 22, 2009 |
4.2 / 5 (5) |
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(PhysOrg.com) -- To power a very small device like a pacemaker or a transistor, you need an even smaller generator. The components that operate the generator are smaller yet, and the efficiency of those foundational components ...
Nanowire biocompatibility in the brain: So far so good
Nanotechnology / Bio & Medicine
Oct 22, 2009 |
5 / 5 (1) |
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The biological safety of nanotechnology, in other words, how the body reacts to nanoparticles, is a hot topic. Researchers at Lund University in Sweden have managed for the first time to carry out successful experiments involving ...
Scientists bend nanowires into 2-D and 3-D structures
Oct 21, 2009 |
4.3 / 5 (7) |
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(PhysOrg.com) -- Taking nanomaterials to a new level of structural complexity, scientists have determined how to introduce kinks into arrow-straight nanowires, transforming them into zigzagging two- and three-dimensional ...
Tiny Test Tube Experiment Shows Reaction Of Melting Materials at the Nano Scale (w/ Video)
Oct 15, 2009 |
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0
(PhysOrg.com) -- Researchers at The University of Texas at Austin have conducted a basic chemistry experiment in what is perhaps the world's smallest test tube, measuring a thousandth the diameter of a human hair.
Rapid DNA Detection Quickly Diagnoses Infections
Nanotechnology / Bio & Medicine
Oct 05, 2009 |
4.8 / 5 (4) |
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(PhysOrg.com) -- A new portable device can detect bacteria and help prevent the spread of infectious diseases. This new tool takes from 15 minutes to 2 hours to diagnose a patient for infectious diseases and ...
Better control of carbon nanotube 'growth' promising for future electronics
Nanotechnology / Nanomaterials
Oct 01, 2009 |
4.9 / 5 (9) |
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(PhysOrg.com) -- Researchers have overcome a major obstacle in efforts to use tiny structures called carbon nanotubes to create a new class of electronics that would be faster and smaller than conventional ...
Making more efficient fuel cells
Sep 07, 2009 |
5 / 5 (1) |
1
Bacteria that generate significant amounts of electricity could be used in microbial fuel cells to provide power in remote environments or to convert waste to electricity. Professor Derek Lovley from the University of Massachusetts, ...
Researchers grow nanowire crystals for 3-D microchips
Aug 26, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- Stanford researchers have developed a method of stacking and purifying crystal layers that may pave the way for three-dimensional microchips.
New material for nanoscale computer chips
Nanotechnology / Nanomaterials
Aug 17, 2009 |
5 / 5 (4) |
2
Nanochemists from the Chinese Academy of Sciences and Nano-Science Center, Department of Chemistry at University of Copenhagen have developed nanoscale electric contacts out of organic and inorganic nanowires. ...
Light-absorbing nanowires may make better solar panels
Nanotechnology / Nanomaterials
Jul 07, 2009 |
4.1 / 5 (9) |
6
(PhysOrg.com) -- A century after German physicist Gustav Mie derived the math to explain why the colors in some stained glass windows look especially resplendent in the sunlight, a team of Stanford engineers ...
A quicker, cheaper SARS virus detector -- one easily customizable for other targets
May 29, 2009 |
5 / 5 (2) |
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Members of a USC-led research team say they've made a big improvement in a new breed of electronic detectors for viruses and other biological materials — one that may be a valuable addition to the battle against ...
Evidence of macroscopic quantum tunneling detected in nanowires
May 27, 2009 |
4.2 / 5 (13) |
6
A team of researchers at the University of Illinois has demonstrated that, counter to classical Newtonian mechanics, an entire collection of superconducting electrons in an ultrathin superconducting wire is ...
Scientists demonstrate effect of confining dielectrics on semiconductor nanowire conductivity
May 05, 2009 |
4 / 5 (2) |
1
Researchers at the Harvard School of Engineering and Applied Sciences (SEAS), in collaboration with researchers from Worcester Polytechnic Institute (WPI), have demonstrated, for the first time, that the activation energy ...
