Our partners at the University of St Andrews and the University of Cologne have developed a revolutionary biomedical device. It utilizes small wireless light sources inside the body to stimulate cells precisely, without the need for large wires or implants. This innovation involves OLED devices on acoustic antennas, enabling internal wireless stimulation at sub-megahertz frequencies. It promises advanced treatments for conditions like Parkinson’s disease and eye diseases, marking a significant step towards ideal stimulators for medical applications.