Story perspectives

Revolutionary Pill Detects Gut Bleeding with Bacteria Glow

11/21/2025

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Summary

Story summary

Chinese researchers have developed a bacteria-infused pill that detects gastrointestinal bleeding by emitting a glow when it encounters heme.
In mouse tests, light intensity correlated with disease severity, indicating potential for early diagnosis and monitoring of colitis.
The encapsulated bacteria survive digestive fluids and can be retrieved from feces using magnets.
The study was published in ACS Sensors, and human trials are planned to further evaluate the technology.

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Story summary

Chinese researchers have developed a bacteria-infused pill that detects gastrointestinal bleeding by emitting a glow when it encounters heme.
In mouse tests, light intensity correlated with disease severity, indicating potential for early diagnosis and monitoring of colitis.
The encapsulated bacteria survive digestive fluids and can be retrieved from feces using magnets.
The study was published in ACS Sensors, and human trials are planned to further evaluate the technology.