Argonne scientists design self-assembled "micro-robots"
Alexey Snezhko and Igor Aronson, physicists at the U.S. Department of Energy's (DOE) Argonne National Laboratory, have coaxed "micro-robots" to do their bidding.
The robots, just half a millimeter wide, are composed of microparticles. Confined between two liquids, they assemble themselves into star shapes when an alternating magnetic field is applied.
Photo by Alex Snezhko and Igor Aronson / Courtesy of Argonne National Laboratory.