A tiny jellyfish robot could swim inside the bladder to deliver drugs

A tiny jellyfish-like robot could one day swim through the human body to deliver drugs to the right location. Metin Sitti and his colleagues at the Max Planck Institute for Intelligent Systems in Germany designed a robotic jellyfish that can swim, burrow and transport objects. It is 3 millimetres in diameter, roughly the size of a baby common jellyfish. It consists of a central body and eight bendable flaps that can beat upwards and downwards in unison. They beat roughly 150 times per minute, also similar to that of baby jellyfish, and are extended by flippers that help the robot propel through water.