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Swarms of tiny robots coordinate to achieve ant-like feats of strength
Small robots directed by magnetic fields can cooperatively lift heavy objects, form floating rafts and push through clogs. They may one day deliver drugs within the human body
Swarms of tiny robots guided by magnetic fields can coordinate to act like ants, from packing together to form a floating raft to lifting objects hundreds of times their weight. Jeong Jae Wie at Hanyang University in South Korea and his colleagues made the tiny, cube-shaped robots using a mould and epoxy resin embedded with magnetic alloy. “These magnetic microrobots hold great promise for minimally invasive drug delivery in small, enclosed and confined spaces,” says Xiaoguang Dong at Vanderbilt University in Tennessee, who was not involved in the research.
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