Tiny Injectable Implants Use the Body as a Network, Making Rats Move a Leg on Cue

Nature World News | 03.10.2026 07:00
When a sensor on a rat's front paw detected movement, the animal's hind leg moved in response, but not because of its own nervous system. The signal traveled through the animal's tissue as a faint electrical pulse, switching on a tiny implant that stimulated a nerve in the leg. The demonstration, described Sept. 24 in the journal Science, comes from engineers at the Georgia Institute of Technology in Atlanta.