colloids
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Cell-sized robots could help find disease within your body
Small robots aren't anything new, from DARPA's insect-sized disaster relief bots to diminutive inchworms powered by humidity. Now, though, researchers at MIT have likely created the smallest robots, yet: Microscopic, cell-sized electronic circuits made of two-dimensional materials that catch a ride on colloids, insoluble particles that stay suspended in liquid or even air.
