Tiny 3D-Printed Microbots Could Be Used As A Drug Delivery System

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The tiny microfish turn fluorescent red when binding toxins. W. Zhu & J. Li/UC San Diego

A team of nanoengineers has created a minuscule 3D-printed robotic fish – or microfish – that they hope will one day be used as a drug delivery system in the body. The tiny microbots can propel themselves, be steered using magnets, and even neutralize toxins in a fluid if loaded with the correct nanoparticles.