In the past few years, we have covered plenty of promising microbots here. University of Michigan Engineers have come up with origami microbots that can form one shape, complete a task, then reconfigure to take on another task.
U-M’s team has created microbots that can fold as far as 90 degrees and more. Larger folds allow microbots to form more complex shapes. [the] approach enables its microbots to complete their range of motion up to 80 times per second, a faster pace than most can operate.
A layer of gold and polymer were used to act as an onboard actuator for these robots.