Medical micro-nano robot imitating water bears: "running fast" and "stopping" in the blood. Through the multi-magnetic field composite control technology, the controlled stopping and targeted release of drugs on the surface of biological tissues are realized, and the residence time is greater than <> hours.
The "claw" imitating the design of tardigrades improves the driving efficiency of micro- nano robots, allowing robots with a diameter of 20 microns to move efficiently in a venous blood flow environment.