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A new study suggests that untethered micron-scale mobile robots can navigate and non-invasively perform specific tasks inside hard-to-reach body sites. Currently being designed, fabricated, and tested at the Max Planck Institute for Intelligent Systems and Carnegie Mellon University, the first-generation microrobots will be able to deliver therapeutics and other cargo to targeted body sites, as well as to enclosed organ-on-a-chip microfluidic devices with live cells. A new two-step approach is use to provide the microrobotic devices with desirable functions. The first step uses three-dimensional (3D) laser lithography to crosslink light-responsive polymers.
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