Massachusetts Institute of Technology researchers, led by the Computer Science and Artificial Intelligence Laboratory's Dina Katabi, have developed an "in-body global-positioning system" to locate ingestible implants within the body using low-power wireless signals.
Their ReMix marker devices were previously demonstrated to detect heart rate, breathing, and movement, which are then used by an algorithm to pinpoint the marker's precise whereabouts.
The marker requires no battery or other external source of energy, because it can reflect the signal transmitted by the wireless device outside the body.
Animal tests confirmed the implants can be tracked at the centimeter level, and the team expects similar devices could eventually function as in-body drug delivery systems.
From MIT News
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