Researchers at the University of Twente have developed SeroTab, an electronics-free, swallowable soft robotic capsule that could offer a less invasive alternative to traditional upper gastrointestinal endoscopy for certain diagnostic applications. Guided externally by a handheld magnet, the capsule glides through the stomach, measures gastric acidity in real time using ultrasound-visible hydrogel technology, and can collect stomach fluid samples on demand for laboratory analysis—all without requiring a camera, battery, or wired endoscope.
The robotic penguin that makes endoscopy optional (Technology.org)
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