Scientists develop tiny injectable robots to treat brain bleeding caused by aneurysms

Scientists at the University of Edinburgh are developing tiny, injectable robots to perform complex treatments within the human body.

Researchers demonstrated that swarms of magnetized nanobots could potentially treat brain bleeds caused by aneurysms, which result in about 500,000 deaths globally each year.

In lab tests, several hundred billion of the bots were injected into an artery and then remotely guided as a swarm, using magnets and medical imaging to the site of the aneurysm.

The team said that nanorobots show potential for transporting and releasing drug molecules to precise locations in the body without risk of leaking into the bloodstream—a key test of the technology’s safety and efficacy.