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Tiny Sperm-Like Robots Want to Swim Around and Deliver You Medicine

04
Jun
2014

Meet MagnetoSperm: a tiny robot that can deliver drugs to any part of the body, because it swims just like sperm and reaching areas that were previously difficult to access. This is a major scientific development, regardless of its kind of icky name.  The little robots navigate using weak oscillating magnetic fields, which they can do thanks to their magnetic cobalt-nickel heads.  The sperm-like robot moves through blood vessels, everything from arteries to capillaries. These magnetic fields are quite weak, 5 milliTeslas, which is comparable to a fridge magnet. The head aligns itself with the magnetic field, then uses its flailing body to thrust along it. Basically, it wiggles really fast, steering using the magnetic field and its heads.

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