Darren Sun and Wong Ann Chai (IMAGE) Nanyang Technological University Caption Nanosun founder, NTU Assoc Prof Darren Sun (left) is with Managing Director Wong Ann Chai, looking at their innovative multiuse membrane filters being demonstrated. Credit Nanyang Technological University 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.