Ultra-thin temperature sensor is biodegradable and biocompatible

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Microsensors are already being used for many everyday applications, and are being integrated into RFID chips for innovative uses such as tracking luggage or stopping bike theft. However, as the sensors usually contain heavy metals, which are harmful to human health, they cannot currently be used for applications that involve food or internal medicine. Recently, however, engineers at ETH Zurich University have developed biodegradable temperature microsensors which may one day be safe enough to be used with food. The new microsensors are created by enclosing a superfine electrical filament made of magnesium, silicon dioxide and nitride inside a compostable polymer…

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