Dr Alvaro Casas Bedoya (IMAGE) University of Sydney Caption Dr Alvaro Casas Bedoya in the Sydney Nanoscience Hub at the University of Sydney holding a silicon wafer used to manufacture semiconductors. Credit Stefanie Zingsheim/The University of Sydney Usage Restrictions For this story 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.