Jianxi Gao (IMAGE) Rensselaer Polytechnic Institute Caption Jianxi Gao, Rensselaer Polytechnic Institute Credit Rensselaer Polytechnic Institute 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.