UChicago scientists invent ultra-thin, minimally-invasive pacemaker controlled by light

A team of researchers with the University of Chicago has developed a wireless device, powered by light, that can be implanted to regulate cardiovascular or neural activity in the body. The featherlight membranes, thinner than a human hair, can be inserted with minimally invasive surgery and contain no moving parts.
Published Feb. 21 in Nature, the results could help reduce complications in heart surgery and offer new horizons for future devices.