A newly-developed technology at the University of California- San Diego called microfish will one day allow for tiny 3D-printed “smart” microbots to travel through a person’s bloodstream and deliver drugs to specific places in the body, as well as sense and remove toxins. The high-tech fish are extremely small, smaller than the width of a human hair. The revolutionary devices are extremely easy to create, but are remarkably high tech, with the ability to act as both a toxin sensing and detoxifying robot, according to researchers at UC-San Diego.