Sensor (IMAGE) University of California - Riverside Caption A glass tube sensor developed by engineers at the University of California, Riverside will allow scientists to weigh tiny biological samples in their native liquid environments. Credit UC Riverside 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.