Researchers at the University of Macau have created soft magnetic robots modeled after the golden wheel spider. These bio-inspired machines roll and climb inside the gastrointestinal tract, guided externally by magnetic fields, to reach areas standard endoscopes struggle with. In early tests, they successfully delivered drugs to targeted sites in animal GI models—without damaging tissue. If proven safe in live studies, these tiny climbers could one day transform how GI cancers and other conditions are diagnosed and treated.
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