Battery-Free Pacemaker Uses Light to Regulate Heartbeat

A wireless pacemaker device used to measure cardiac pathologies in rodents may be able to replace wired pacemakers in human patients. The device is digitally manufactured and fully customizable, using optogenetics to target light-sensitive proteins and disrupt arrythmias. Since the device is battery-free, it would not have to be replaced as frequently. Researchers say the next step is the translate the device into larger animal subjects for testing.