Dr. Omid Kavehei, University of Sydney (IMAGE) University of Sydney Caption Dr. Omid Kavehei from the Faculty of Engineering and Sydney Nano Institute at the University of Sydney. Credit University of Sydney Usage Restrictions For this story only 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.