Electronic tattoos promise to help people monitor health in all kinds of ways, from heart rates to blood sugar and more. Now here’s one that can monitor your tooth-brushing skills. A tooth-based sensor can detect different types bacteria in your saliva that can cause a variety of health problems.
The sensor is made of graphene and can detect bacteria in our mouths to the single-cell level, according to researchers at Princeton and Tufts universities. Michael McAlpine and colleagues developed a method to print graphene nanosensors onto a silk substrate. They added electrodes and an inductive coil to power the device, which can then be transferred onto teeth or other biological materials.
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