New 3D-printed microrobot mimics worm-like motion at microscopic scale

Researchers at Leiden University created a 3D-printed microrobot measuring just 5 micrometers that mimics worm-like movement when exposed to electric fields. The flexible chain of tiny segments, each smaller than a human hair width, can propel itself at 7 micrometers per second and exhibits lifelike behaviors like twisting when constrained. Despite having no electronics or internal power source, the robot demonstrates adaptive responses similar to biological organisms, potentially revolutionizing biomedical applications like targeted drug delivery through its intelligent movement capabilities.