{"slug": "injectable-nanorobots-may-help-heal-spinal-injuries", "title": "Injectable nanorobots may help heal spinal injuries", "summary": "Researchers at ETH Zurich have developed injectable nanorobots infused with stem cells that successfully repaired severed spinal cords in mice, with nerve cells reconnecting within 28 days and the animals showing improved movement and coordination. The microscopic robots, measuring six micrometers wide and combining neural progenitor cells with magnetic nanoparticles, could eventually lead to treatments for spinal injuries in humans. The findings, published in Nature Materials, require further research to determine optimal magnetic field applications before human trials can begin.", "body_md": "Despite significant medical advances, [spinal cord damage](https://www.popsci.com/science/regeneration-zebrafish-spine/) remains one of the most difficult physical injuries to treat. Scarring frequently gets in the way of nerve fiber regrowth, while nerve cells usually cannot regenerate on their own. A possible solution? A fleet of stem cell-infused, injectable [nanorobots](https://www.popsci.com/health/microrobot-blood-vessel-stroke/) that can help nerve cells regenerate. The tiny bots are detailed in a study recently published in the journal [ Nature Materials](https://www.nature.com/articles/s41563-026-02625-3).\n\nTo build their new tools, a team at ETH Zurich in Switzerland engineered microscopic machines that combine living neural progenitor cells (NPCs)—specialized stem cells developed for the spine—with customized nanoparticles. These customized nanoparticles feature two layers—one that is sensitive to magnetic fields and another that translates them into electrical signals.\n\n“We place a reservoir in the center where we trap the cells. Then we inject the nanoparticles and wait for the two components to bind,” [Salvador Pané i Vidal](https://msrl.ethz.ch/the-lab/team/sp_details.html), a study co-author and ETH Zurich roboticist, [said in a statement](https://ethz.ch/en/news-and-events/eth-news/news/2026/06/microrobots-repair-spinal-cord.html).\n\nEach nanorobot is about six micrometers wide, making them smaller than a red blood cell. However, the number of robots required to pull off a procedure is immense. Millions of nanobots are needed during animal trials. Even with such a high number, the initial experimental results are promising. In tests involving mice with severed spinal cords, nerve cells stimulated by the microrobots began reconnecting at the injury site within 28 days. By the end of the trial, the mice displayed major improvements in movement, gait, coordination, and exploratory behavior.\n\nSignificantly more research is required before these nanobots are ready for primetime, but the team hopes to one day begin testing similar devices in humans. Before that, they need to determine the most effective magnetic fields and how long to apply them to patients. In the meantime, the overall design could also be applied to help treat regenerative issues in organs and wounds.\n\n“The reproducible and scalable production of microrobots using our lab-on-a-chip system demonstrates that the platform’s application potential extends beyond basic research,” added Pané i Vidal.", "url": "https://wpnews.pro/news/injectable-nanorobots-may-help-heal-spinal-injuries", "canonical_source": "https://www.popsci.com/health/nanorobot-spinal-injury/", "published_at": "2026-06-03 19:50:31+00:00", "updated_at": "2026-06-03 20:17:02.665147+00:00", "lang": "en", "topics": ["robotics", "ai-research"], "entities": ["ETH Zurich", "Salvador Pané i Vidal", "Nature Materials"], "alternates": {"html": "https://wpnews.pro/news/injectable-nanorobots-may-help-heal-spinal-injuries", "markdown": "https://wpnews.pro/news/injectable-nanorobots-may-help-heal-spinal-injuries.md", "text": "https://wpnews.pro/news/injectable-nanorobots-may-help-heal-spinal-injuries.txt", "jsonld": "https://wpnews.pro/news/injectable-nanorobots-may-help-heal-spinal-injuries.jsonld"}}