Nov. 22 (UPI) -- Tiny remote-controlled robots made of algae could soon navigate their way to hard-to-reach locations in the body. Scientists say the robots could be used to diagnose and treat diseases like cancer.
Each tiny robot measures just a few micrometers long, roughly the size of a blood cell. They're composed of algae cells coated in magnetic particles. The algae bots can be directed to the nooks and crannies of the human body using a magnet.