Scientists at the University of Edinburgh have developed nanorobots that can manage brain hemorrhages caused by aneurysms. These miniaturized devices, twenty times smaller than a human red blood cell, are designed to accurately and safely treat aneurysms, which cause around 500,000 deaths worldwide each year. The nanorobots, which contain blood-stopping drugs, are coated with a protective shell that melts at a predetermined temperature. In laboratory tests, hundreds of billions of these robots have been injected into an artery and guided by magnets toward an aneurysm. Once they reach their target, they form a cluster and heat up, releasing a protein that promotes clot formation and stops bleeding. The technology could replace traditional treatments, such as the use of metal catheters and stents, and reduce the risk of implant rejection and complications from anticoagulant drugs. Further trials are expected to bring this innovation closer to clinical application.