nanoswimmers
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Swimming nanobots target cancer cells inside your body
Scientists keep saying they'll put tiny robots into our bodies to cure disease, perhaps not realizing we may not be down with that. But the field is progressing rapidly, and researchers at the Israel Institute of Technology (Technion) have now found an artful way to propel such 'bots. They created a "nanoswimmer" the width of a silk fiber, made of several links of polymer and magnetic nanowires. After introducing it into a blood-like fluid, they applied an external oscillating magnetic field, propelling the nanobot the length of its body in a second.
