This robot made of algae can swim through your body—thanks to magnets


For decades, engineers have been trying to build medical robots that can deliver drugs or do surgery inside the human body—a somewhat less fantastic version of the 1966 sci-fi film Fantastic Voyage. Now, scientists have manipulated spirulina, a microscopic plant and food supplement, to travel through people in response to magnetic signals. The biohybrid robot could one day carry drugs to specific parts of the body, minimizing side effects. What’s more, the robot—and its magnetic coat—appear to kill cancer cells.

Read Article:  http://www.sciencemag.org/news/2017/11/robot-made-algae-can-swim-through-your-body-thanks-magnets