Wearable photoacoustic sensor (IMAGE) University of California - San Diego Caption A photoacoustic sensor capable of monitoring hemoglobin deep below the skin could help clinicians diagnose tumors, organ malfunctions and more. Credit Photo by Xiaoxiang Gao for the Jacobs School of Engineering at UC San Diego Usage Restrictions none 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.