Gold
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A new method for recovering high-purity gold from discarded electronics is paying back US$50 for every dollar spent, according to Swiss researchers – who found their all-important gold-filtering substance in cheesemaking, of all places.
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Clinical trials using orally administered gold nanocrystals to treat multiple sclerosis and Parkinson’s disease have produced promising results. The nanocrystals restore crucial energy metabolites in the brain that are depleted in these conditions.
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Preventing or clearing ice build-up on surfaces is a major winter problem, as some areas are currently experiencing. Scientists at KAIST have now developed a new thin film coating made of gold nanorods that can passively melt ice using just sunlight.
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One thing that will definitely ruin a wine is an unpleasant aroma. Such malodorous wines could soon be saved, however, with a little bit of help from gold nanoparticles.
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While it's a stunning example of biological evolution, antibiotics-resistant bacteria is proving to be one huge global health headache. Now, though, scientists believe that our silver bullet in this battle might actually be set in gold.
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While anti-fog sprays work to a certain extent, warming a glass surface is a better way of keeping it fog-free. A new coating material is designed to do so, and it utilizes light-absorbing gold nanoparticles instead of electricity.
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Brain cancer is one of the most insidious forms of the disease, but a new wireless device could help improve survival times. When implanted between the skin and skull, the device uses infrared to heat up gold nanoparticles to kill cancer from within.
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Discarded electronics can be a gold mine – literally. Researchers have developed an efficient new way to use graphene to recover gold from electronic waste, without needing any other chemicals or energy.
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Scientists may have found a way to re-enlist old antibiotics in the fight against superbugs. Gold nanoparticles were wrapped in molecules that seek out bacteria and disrupt their cell membranes, allowing existing drugs to kill them easier.
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Currently, if you wish to track the electrical activity of someone's muscles, you have stick electrodes onto their skin. An experimental new technology, however, simply utilizes conductive fabric that's incorporated into washable pieces of clothing.
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E-waste is a major environmental hazard, full of valuable metals. Engineers at Rice University have now shown that precious metals and rare earth minerals can be recovered by flash-heating ground-up electronics with a zap of electricity.
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Many renewable energy technologies require metals that are mined through environmentally destructive processes. Now, Oxford scientists are investigating a new way to mine valuable metals trapped in hot brines beneath volcanoes.
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