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15-million-year-old mollusk protein found

A team of US scientists have found "beautifully preserved" 15 million-year-old thin protein sheets in fossil shells from southern Maryland. Their findings are published in the inaugural issue of Geochemical Perspectives Letters, ...

dateFeb 05, 2015 in Earth Sciences
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Coating noble metal nanoparticles with silica

A straightforward and effective process for coating silver, gold and platinum nanoparticles with functionalized silica shells at room temperature has been developed by A*STAR . Crucially, unlike conventional methods for producing ...

dateFeb 04, 2015 in Nanomaterials
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National security vs. online privacy

One method for safeguarding online anonymity is Tor, "the onion router", whose name comes from its method of adding and stripping away encryption layer by layer as messages pass from one node to another in the network en ...

dateNov 07, 2014 in Security
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