Scientists make sperm-like nanopropeller controlled by 3D magnetic fields

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These clever nano-scale critters are made of glass with one side covered by cobalt, which is magnetic, so it can be precisely controlled by a 3D magnetic field to travel through your body. They’re even capable of pushing objects 10000 times larger, so they could be used for delivering drugs to specific points of the body. Link to Newscientist.

2009.05.28