In the US, they created a robot capable of healing their knife wounds.

Engineers at Northwestern University in Illinois have created a soft robot that can move around and recover from being stabbed. It will be able to work in hazardous areas, and parts of it can also be integrated into wearable devices. For example - for astronauts. In the event of an injury to the upper layer, the robot turns on sensors that release chemicals that repair the damage. After that, he continues on his way.