Non-invasive quantum spin sensor can detect digital pill signals without skin contact

Non-invasive quantum spin sensor can detect digital pill signals without skin contact

A research group from the Graduate School of Engineering at Tohoku University has developed a noninvasive means of detecting the signals from "digital pills," a type of medication often used by doctors to monitor a patient's adherence to a medication regime. When swallowed, the circuit sends out a small signal that can be detected from outside the body.