Electron Micrograph (IMAGE) University of Queensland Caption A scanning electron micrograph of a microdisk similar to the one researchers used to create their new ultrasound sensor. Credit The University of Queensland Usage Restrictions To be only used with this story. 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.