Micro-Robots on the Edge: Breakthrough or Biological Gamble?
Nathan Arlow Tech & Future Science Writer Magnetically guided microrobots developed at ETH Zurich. Image credit: ETH Zurich. They swim through blood vessels, crawl along tissue, and carry medicines smaller than a speck of dust. 2025 has quietly become the year of the micro-robot. Once confined to speculative sketches and sci-fi storyboards, these machines now appear in peer-reviewed journals, press releases, and early clinical trials. At ETH Zurich, researchers demonstrated microrobots small enough to slip through capillary models and steer magnetically toward simulated clots. In July, a collaboration between the University of Michigan and Oxford University revealed micro-swimmers that can carry drug payloads through complex fluid environments while maintaining directional control. In September, the U.S. Food and Drug Administration granted Microbot Medical’s Liberty system a 510(k) clearance, marking the first time a company has won formal recogniti...