Microrobot tumbling through a colon in vivo. Met Anne Vos1 november 202021 januari 2021Kennisbank  A rectangular robot as tiny as a few human hairs can travel throughout a colon by doing back flips, Purdue University engineers have demonstrated in live animal models. https://www.purdue.edu/newsroom/releases/2020/Q4/all-terrain-microrobot-flips-through-a-live-colon.html