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Latest Nanowire Stories

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2010-06-14 08:45:52

Material's fluctuating response to a magnetic field could lead to switchable superconducting wires A team of scientists from Bar-Ilan University, Israel, and the U.S. Department of Energy's (DOE) Brookhaven National Laboratory has fabricated thin films patterned with large arrays of nanowires and loops that are superconducting "” able to carry electric current with no resistance "” when cooled below about 30 kelvin (-243 degrees Celsius). Even more interesting, the scientists...

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2010-06-11 07:15:30

Scientists have made a breakthrough toward creating nanocircuitry on graphene, widely regarded as the most promising candidate to replace silicon as the building block of transistors. They have devised a simple and quick one-step process based on thermochemical nanolithography (TCNL) for creating nanowires, tuning the electronic properties of reduced graphene oxide on the nanoscale and thereby allowing it to switch from being an insulating material to a conducting material. The technique...

2010-06-10 13:01:37

After running a series of complex computer simulations, researchers have found that flaws in the structure of magnetic nanoscale wires play an important role in determining the operating speed of novel devices using such nanowires to store and process information. The finding*, made by researchers from the National Institute of Standards and Technology (NIST), the University of Maryland, and the University of Paris XI, will help to deepen the physical understanding and guide the...

2010-06-01 19:24:43

A team of Duke University chemists has perfected a simple way to make tiny copper nanowires in quantity. The cheap conductors are small enough to be transparent, making them ideal for thin-film solar cells, flat-screen TVs and computers, and flexible displays. "Imagine a foldable iPad," said Benjamin Wiley, an assistant professor of chemistry at Duke. His team reports its findings online this week in Advanced Materials. Nanowires made of copper perform better than carbon nanotubes, and are...

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2010-05-10 11:19:44

Rice researchers spin pure batches of nanotubes species In two new papers, Rice University researchers report using ultracentrifugation (UCF) to create highly purified samples of carbon nanotube species. One team, led by Rice Professor Junichiro Kono and graduate students Erik Haroz and William Rice, has made a small but significant step toward the dream of an efficient nationwide electrical grid that depends on highly conductive quantum nanowire. The other, led by Rice Professor Bruce...

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2010-04-23 12:40:00

Scientists take first step toward controlling the growth of nanomaterials without catalysts Researchers at the University of Wisconsin-Madison recently made a significant first step toward understanding how to control the growth of the nanotubes, nanowires and nanorods needed for renewable energy and other technology applications. These nanocrystalline materials, or nanomaterials, possess unique chemical and physical properties that can be used in solar energy panels, high energy density...

2010-04-21 13:55:56

Supercooling, a state where liquids do not solidify even below their normal freezing point, still puzzles scientists today. A good example of this phenomenon is found everyday in meteorology: clouds in high altitude are an accumulation of supercooled droplets of water below their freezing point. Scientists from the Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), the Centre National de Recherche Scientifique (CNRS) and the ESRF have found an...

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2010-04-21 08:35:06

Atomic force microscopy, a tactile-based probe technique, provides a three-dimensional nanoscale image of a material by gliding a needle-like arm across the material's surface. The core of AFM imaging workhorse is a cantilever with a sharp tip that deflects as it encounters undulations across a surface.  Due to a minimum force required for imaging, conventional AFM cantilevers can  deform or even tear apart living cells and other biological materials. While scientists have made...

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2010-04-06 13:44:46

Atoms spiral toward a charged carbon nanotube under dramatic acceleration before splitting apart Physicists at Harvard University have found that a high-voltage nanotube can cause cold atoms to spiral inward under dramatic acceleration before disintegrating violently. Their experiments, the first to demonstrate something akin to a black hole at atomic scale, are described in the current issue of the journal Physical Review Letters. "On a scale of nanometers, we create an inexorable and...

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2010-03-29 10:45:00

Study paves way for development of nanocircuits for energy, electronics applications Scientists have discovered the world's smallest superconductor, a sheet of four pairs of molecules less than one nanometer wide. The Ohio University-led study, published today as an advance online publication in the journal Nature Nanotechnology, provides the first evidence that nanoscale molecular superconducting wires can be fabricated, which could be used for nanoscale electronic devices and energy...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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