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Tooth tattoo will tell you why you’re sick

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In our inked up future, vibrating tattoos will buzz when your phone rings, and change color when your blood sugar is low. But a new kind of sensor made of graphene could one-up them all–tattooed to your teeth, these sensors will be able to tell when you’re ill, and even possibly what’s ailing you–all from the bacteria on your breath. A bonus: It won’t even hurt to put them on.
via Co.Exist

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