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Wednesday, 10 March 2010 18:47 |
Materials such as paper, paint, and biological tissue are opaque because the light that passes through them is scattered in complicated and seemingly random ways. A new experiment conducted by researchers at the City of Paris Industrial Physics and Chemistry Higher Educational Institution (ESPCI) has shown that it's possible to focus light through opaque materials and detect objects hidden behind them, provided you know enough about the material. |
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Wednesday, 10 March 2010 12:50 |
A team of scientists at MIT have discovered a previously unknown phenomenon that can cause powerful waves of energy to shoot through minuscule wires known as carbon nanotubes. The discovery could lead to a new way of producing electricity, the researchers say. |
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Monday, 08 March 2010 18:45 |
Solar cells made from silicon are projected to be a prominent factor in future renewable green energy equations, but so far the promise has far exceeded the reality. While there are now silicon photovoltaics that can convert sunlight into electricity at impressive 20 percent efficiencies, the cost of this solar power is prohibitive for large-scale use. |
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Friday, 05 March 2010 15:05 |
Scientists from the Functional Materials Group at the University of Kent's School of Physical Sciences (SPS) have expanded the potential uses of glass by developing an experimental technique that reveals more clearly how atoms in glass vibrate. |
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Friday, 05 March 2010 13:00 |
University of Calgary chemistry professor David Cramb is a step closer to helping solve a complex problem in nanotechnology: the impact nanoparticles have on human health and the environment. |
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Wednesday, 03 March 2010 13:27 |
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Nanoparticles are atmospheric materials so small that they can't be seen with the naked eye, but they can very visibly affect both weather patterns and human health all over the world -- and not in a good way, according to a study by a team of researchers at Texas A&M University. |
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Monday, 01 March 2010 16:16 |
Scientists at the Naval Research Laboratory and the University of Illinois-Urbana Champaign recently reported a new technique for directly writing composites of nanoparticles and polymers. Recent years have seen significant advances in the properties achieved by both these materials, and so researchers have begun to blend these materials into nanocomposites that access the properties of both materials. |
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Monday, 01 March 2010 14:20 |
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Researchers at the University of Pennsylvania, the University of Wisconsin-Madison and IBM Research-Zürich have fabricated an ultra sharp, diamond-like carbon tip possessing such high strength that it is 3,000 times more wear-resistant at the nanoscale than silicon. |
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Friday, 26 February 2010 17:32 |
Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have obtained the first glimpse of miniscule air bubbles that keep water from wetting a super non-stick surface. Detailed information about the size and shape of these bubbles -- and the non-stick material the scientists created by "pock-marking" a smooth material with cavities measuring mere billionths of a meter -- is being published in the journal Nano Letters. |
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Wednesday, 24 February 2010 19:40 |
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One of the hallmarks of cancer is that tumors are able to suppress the immune system, preventing the body's own defense system from eliminating the disease, particularly as tumors spread through the body. |
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Wednesday, 10 March 2010 13:52 |
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When a team of university and industry researchers tried a novel, foundry-style mold-filling technique to make nanoscale devices, they realized they had discovered a gem. |
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Monday, 08 March 2010 18:48 |
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MIT chemical engineers have built a sensor array that, for the first time, can detect single molecules of hydrogen peroxide emanating from a single living cell. |
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Monday, 08 March 2010 17:36 |
The rapidly growing field of nanotechnology and its future use in cosmetic products holds both enormous potential and potential concern for consumers. Currently, major cosmetic manufacturers have imposed a voluntary ban on the use of nanoparticles in products while they await a ruling from the Food and Drug Administration (FDA) regarding the safety of this technology. |
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Friday, 05 March 2010 14:03 |
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A nanoparticle growing in popularity as a bactericidal agent has been shown to be toxic to fish, according to a Purdue University study. Tested on fathead minnows -- an organism often used to test the effects of toxicity on aquatic life -- nanosilver suspended in solution proved toxic and even lethal to the minnows. |
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Wednesday, 03 March 2010 14:29 |
Scientists in Manchester have found a clean and green way of making tiny magnets for high tech gadgets - using natural bacteria that have been around for millions of years. |
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Wednesday, 03 March 2010 12:25 |
Rice University researchers have found a way to stitch graphene and hexagonal boron nitride (h-BN) into a two-dimensional quilt that offers new paths of exploration for materials scientists.The technique has implications for application of graphene materials in microelectronics that scale well below the limitations of silicon determined by Moore's Law. |
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Monday, 01 March 2010 15:19 |
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Graphene, a one-atom-thick layer of a carbon lattice with a honeycomb structure, has great potential for use in radios, computers, phones and other electronic devices. But applications have been stymied because the semi-metallic graphene, which has a zero band gap, does not function effectively as a semiconductor to amplify or switch electronic signals. |
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Friday, 26 February 2010 18:34 |
Space apparently has its own recipe for making carbon nanotubes, one of the most intriguing contributions of nanotechnology here on Earth, and metals are conspicuously missing from the list of ingredients. |
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Friday, 26 February 2010 16:27 |
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Some say the world's population will swell to 9 billion people by 2030 and that will present significant challenges for agriculture to provide enough food to meet demand, says University of Idaho animal scientist Rod Hill. |
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Wednesday, 24 February 2010 18:34 |
With a silicone rubber "stick-on" sheet containing dozens of miniature, powerful lenses, engineers at Harvard are one step closer to putting the capacity of a large laboratory into a micro-sized package. |
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