Soft Robots Graphic
Scientists have learned how to use magnetic fields to navigate tiny, soft robots through the human body. The finding could lead to less-invasive treatments for things like blocked arteries.

Researchers created a way to send tiny, soft robots into humans. Doctors would use magnetic fields to steer the soft robot inside the body, bringing medications or treatments to places that need them.

The soft robot is made of magnetic polymer, a soft composite embedded with magnetic particles that can be controlled remotely. Using the Japanese art of origami, the robot delivers treatments based on the controlled folding and deploying of the origami units.