Engineers design tiny batteries for powering cell-sized robots

https://techxplore.com/news/2024-08-tiny-batteries-powering-cell-sized.html

"0.1 mm long, 0.002 mm thick captures oxygen from air oxidizing zinc generating 1 volt... connected zinc and platinum electrodes, embedded into SU-8 polymer strip... small circuit, sensor (power to run 2 different types changing electrical resistance when encountering certain chemicals), actuator (robotic arm which raises/ lowers), memristor, clock circuit, drug delivery within human body (made of biocompatible materials that would break apart once they were no longer needed), locating leaks in gas pipelines"