Edible battery made from rice-paper-like material tested in pigs for ingestible devices
Researchers have built a biodegradable battery using magnesium and molybdenum trioxide electrodes with an edible ionic-liquid electrolyte, designed to power ingestible medical devices. The battery, described in Nature Chemical Engineering, has been tested successfully in pigs and breaks down into absorbable materials after use.
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If it works safely in humans, this approach could remove the need to retrieve or surgically extract batteries from ingestible sensors and diagnostic capsules, reducing risk for patients. The technology suggests a path toward personalized ingestible electronics that dissolve harmlessly once their job is done, though human trials have not yet begun.
- A biodegradable battery uses magnesium and molybdenum trioxide electrodes with an edible electrolyte.
- It has been tested in pigs to power ingestible medical devices.
- The battery is designed to be absorbed by the body after use, avoiding retrieval surgery.
Source: nature.com — Graham, 2026-09-22
Published there as: “Daily briefing: The mystery of the ‘little red dots’”
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