Ingestible Digestion Monitor
April 23, 2019 | Terry Sharrer
Ingestible sensors have to work in a tough neighborhood—the stomach. For that reason, MIT engineers have created a hydrogel pill with imbedded sensors that swells to the size of a golf ball once it is in place. The hydrogel can contain various sensors, but in this experiment only a thermometer was used. Still, the device was able to remain in pigs’ stomachs and kept working for a month. Drinking a fluid rich in calcium shrinks the device back to pill size so it can pass out of the body. MORE
Image Credit: MIT