Image 1 (IMAGE) Swansea University Caption Mr Logan Zhang, a PhD student at Swansea University's Faculty of Science and Engineering, printing materials in a lab. Credit Dr Zhidao Xia Usage Restrictions Please credit Dr Zhidao Xia 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.