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Princeton University researchers develop tooth attachment that detects bacteria

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It may not be the latest style in bovine bling, but researchers at Princeton University say a golden tattoo attached to a cow’s tooth could one day tell you something about your health.

The remote sensing device has the ability to detect a single bacterium, and to demonstrate, scientists at Princeton recently attached the ultra-thin device — made of strands of gold and silk — to the surface of an extracted cow’s tooth and had somebody blow across it. The device successfully registered the presence of bacteria.

“We can detect a single bacterium, which is really important because it can take only a few bacteria to make you sick,” said Michael McAlpine, an assistant professor at Princeton whose team of researchers developed the technology.
 
 

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