Argonne scientists design self-assembled "micro-robots"

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    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.

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