Scientists are building an army of tiny cancer-fighting robots

Scientists have worked for years to incorporate robotics into delicate medical procedures. They've given us tiny devices that can inject drugs into a person's eye or bend to operate on hard-to-reach areas. Now, they've come up with a way to potentially fight cancer using a magnetized swarm of microscopic robots. Researchers at Phillips Innovative Technologies in Hamburg, Germany have created a way to manipulate each robot in a swarm individually and assign them specific tasks using magnetic fields. The scientists presented their findings on Feb. 15th in the Journal Science Robotics.