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The hunt for electron holes: A molecular glance on solar water splitting

An international team of researchers led by Empa, the Swiss Federal Laboratories for Materials Science and Technology, have now gained in-depth insights into the electronic structure of an iron oxide electrode - while it was in operation. This opens up new possibilities for an affordable hydrogen production from solar energy.

Posted: Oct 30th, 2012

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Fluorescent pH-sensitive nanoparticles indicate bacterial growth

Researchers have introduced a new method for monitoring the growth of bacteria: The fluorescence of nanoparticles embedded in an agarose growth medium changes significantly when the pH value changes because of bacterial metabolism. This can be monitored in real time with a simple digital camera.

Posted: Oct 30th, 2012

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How silver turns people blue

Ingesting silver - in antimicrobial health tonics or for extensive medical treatments involving silver - can cause argyria, condition in which the skin turns grayish-blue. Brown researchers have discovered how that happens.

Posted: Oct 29th, 2012

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Building a better battery for renewable energy storage

A team of researchers at Stanford and SLAC National Accelerator Laboratory has developed a mix of materials that shows promise as a cost-effective alternative to standard batteries - able to quickly and efficiently charge and discharge their energy over thousands of charges, with no energy loss after 1,000 charges.

Posted: Oct 27th, 2012

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