Dr Wang Shubo’s team (IMAGE) City University of Hong Kong Caption Dr Wang Shubo from City University of Hong Kong (first from right) and his research team. Ms Tong Qing (second from left) is a co-author of the paper. Credit City University of Hong Kong Usage Restrictions Image must be used with appropriate caption and credit. 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.