A robot that glides along a layer of mucus inside the human intestine could make medical examinations like colonoscopies less painful for patients, say Dutch scientists. They are working on a snail-inspired robot that should be far gentler on the gut's delicate lining.
Several research groups around the world are working on robots that can remotely explore the intestine but most of these use using tiny legs to pull themselves along (see Worm-inspired robot crawls through intestines). [New Scientist]
