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Researchers have used optical tweezers to make microrobots out of neutrophils

Research team at Jinan University in China has developed a technique that has the potential to displace white blood cells with the help of optical tweezers, a medical device that can hold tiny objects. This task is operated with the help of neutron-bots, a technology that can transport nanoparticles engulfing debris from the cells. The microrobots are one of the major focuses in medical research as they can be employed for targeted drug delivery and other procedures. Researchers have used white blood cells because they can swim through vasculature, leave it to enter neighbouring tissues, and engulf cellular debris. Researchers say that they have been able to move neutrophils in zebrafish tails, which means that this procedure can be performed in other organisms as well employing white blood cells. 

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