SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY
It’s a dirty job but something’s got to do it. A robotic capsule can suck up mucus from the gut, removing the need for uncomfortable procedures.
Gut mucus can be a more accurate indicator of a person’s health than a stool sample. But the usual process for obtaining it involves inserting a long tube, called an endoscope, into someone’s gastrointestinal tract. This can be awkward and uncomfortable.
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Capsules on the other hand are easy to swallow and can …