Ions, not particles, make silver toxic to bacteria

(Phys.org) -- Rice University researchers have settled a long-standing controversy over the mechanism by which silver nanoparticles, the most widely used nanomaterial in the world, kill bacteria.

Twitter CEO says company has 'a truckload of money'

Twitter Inc. Chief Executive Dick Costolo said the short message social network has a "truckload of money in the bank" and would remain a private company for as long as it wants.

Microsoft reveals new tools for business customers

If the first day of Microsoft's Worldwide Partner Conference focused more on its consumer offerings, with talk of tablets and touch-centric devices, Day 2 focused squarely on Microsoft's bread and butter: its business customers.

Study may lead to less expensive consumer lasers and LEDs

(Phys.org) -- A recent theoretical study by a University of Waterloo doctoral candidate in nanotechnology engineering suggests that manufacturers may one day make lasers and LEDs out of silicon, with the potential to significantly ...

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