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flag Chinese scientists created pill-sized sensors that detect gut bleeding for early cancer and colitis diagnosis.

flag Chinese researchers have developed ingestible bacterial pills that detect signs of colorectal cancer and colitis by sensing blood in the gut. flag The pills, made of hydrogel microspheres with heme-sensing bacteria and magnetic particles, survive digestion and glow when they detect blood, with light intensity indicating disease severity. flag After excretion, magnets retrieve the sensors from stool for analysis in about 25 minutes. flag Tests in mice showed the system accurately detected intestinal bleeding and was biocompatible. flag While human trials are pending, the non-invasive method could offer a faster, more comfortable alternative to colonoscopies.

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