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According to the "New Scientist" report in the United States, scientists have recently developed a new "nano fish robot" inspired by the swimming action of fish, which can be applied to transport drugs in the human body. This nanofish is very small, 100 times smaller than a grain of sand. The “nano fish†is magnetically driven and contains tiny gold and nickel components with a silver hinge in the middle. The speed and direction of its swimming is determined by the direction and strength of the magnetic field.
The robot was developed by researchers at the University of California, San Diego, who wanted their inventions to be used in the medical field, such as delivering painkillers to specific parts of the body.
Although other teams have developed similar functions of "nano swimming robots", most of them look more like a small submarine, and how to make nano-robots move forward, the traditional inspiration comes from the spiral tail of bacteria. Experiments have found that this "nano fish" is more effective than previous robots with similar functions.
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Http://gizmodo.com/worlds-first-nanofish-coming-to-swim-drugs-up-your-bl-1786475696