There's something fishy going on in the Department of NanoEngineering at UC San Diego. Last summer, 3D-printed microfish made a big splash in the news. Now, researchers have created "nanofish" -- tiny metallic fish 100 times smaller than a grain of sand -- that could be used to deliver drugs to particular places in the body.
The nanofish are made of gold and magnetic nickel segments, which enable the fish to move and be guided by an external magnet.
"We believe they could be useful for medicine delivery, non-invasive surgery and single cell manipulation," said Jinxing Li, a PhD student in the lab of nanoengineering professor Joseph Wang who led the research.
See a video of the nanofish featured in New Scientist:
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