wearable (IMAGE) Penn State Caption The self-powered, wireless medical sensors harvest energy from kinetic motion created by the user’s movements. That energy powers the micro-supercapacitors, which monitor the user’s movements, creating a cyclical charge for the device. Credit Larry Cheng group, Hebei University of Technology, Xiangtan University. Usage Restrictions non commercial use only License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.