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Coming to you live from your belly: A tiny internal bleeding sensor

An ingestible sensor developed at MIT, which can detect internal bleeding in the stomach.
Ingestible sensor developed at MIT that can detect biomarkers of internal bleeding in the stomach. Credit: Lillie Paquette, MIT.

Doctors are now one step closer to deploying sensors that can travel to parts of a patient's body to diagnose hard-to-detect conditions.

The details: In a new study published Thursday in MIT's Science journal, researchers report on a tiny sensor they developed that can be swallowed, which contains genetically modified bacteria capable of detecting heme, a component of blood, in the stomach. The bacterial response can be converted into a wireless signal, which is then read by nearby computers or a specially-designed app on an Android phone.