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Selenium suppresses staph on implant material

In a new study, Brown University engineers report that when they used selenium nanoparticles to coat polycarbonate, the material of catheters and endotracheal tubes, the results were significant reductions in cultured populations of Staphylococcus aureus bacteria, sometimes by as much as 90 percent.

Posted: Jun 21st, 2012

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Watching the quantum race of electrons

For the first time ever, a German team of physicists has observed the race of two electrons that are liberated from atoms in the course of photoionization, i.e. under the influence of laser radiation.

Posted: Jun 21st, 2012

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First observation of plasmarons in graphene

An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties.

Posted: Jun 20th, 2012

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Taming light with graphene

Scientists visualize the trapping and confinement of light on graphene, making a sheet of carbon atoms the most promising candidate for optical information processing on the nano-scale, optical detection, and ultrafast optoelectronics.

Posted: Jun 20th, 2012

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Graphene? From any lab!

Researchers from the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw, and the Interdisciplinary Research Institute in Lille developed a low cost method for manufacturing multilayered graphene sheets. The new method does not require any specialized equipment and can be implemented in any laboratory.

Posted: Jun 20th, 2012

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Researchers develop a promising new technology for grid-scale energy storage

An interdisciplinary team of researchers from Drexel University have reported the development of a new technology for grid-scale energy storage which could provide a fast, efficient method for storing energy on the electrical grid. This new technology, dubbed the "electrochemical flow capacitor", stores energy in the same way as a supercapacitor, but is much less costly to scale up for large, industrial applications.

Posted: Jun 20th, 2012

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