New Magnetoelastic Patch Harnesses Power from Wearer’s Movement

The technology stems from the magnetoelastic effect, which occurs when tiny magnets move closer and farther away from each other when the material flexes. This sparks a change in the magnetic field, which creates electricity. The patch is waterproof, and can harness power from simple body movements such as pulsating blood vessels beneath the surface of the wrist. The team even submerged the patch in artificial sweat for a week, and it continued to perform as intended.