(IMAGE) Hong Kong University of Science and Technology Caption Prof. SHEN Yajing (left) and co-first author Dr. YANG Xiong (right) with the magnetic actuation platform for microswimmer control in front. Credit HKUST Usage Restrictions NA 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.