Implantable, Wireless Aensor (IMAGE) University of California - Berkeley Caption An implantable, wireless sensor like this could allow real time monitoring of nerve or muscle activity anywhere in the body, using external ultrasound to power and read out voltages. Credit Ryan Neely photo Usage Restrictions None License Licensed 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.