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Swarms of tiny nose robots could clear infected sinuses, researchers say
Chinese and Hong Kong scientists succeed in animal trials, but potential problems include risk of devices being left in body and public suspicions
The micro-robots are a fraction of the width of a human hair and have been inserted successfully into animal sinuses in pre-clinical trials by researchers at universities in China and Hong Kong. Swarms are injected into the sinus cavity via a duct threaded through the nostril and guided to their target by electromagnetism, where they can be made to heat up and catalyse chemical reactions to wipe out bacterial infections. The researchers have produced a model of how the technology could work on a human being, with the robot swarms being deployed in operating theatre conditions, allowing doctors to see their progress by using X-rays.
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