Control of Emission Color (VIDEO) Tokyo University of Science This video is under embargo. Please login to access this video. Caption Demonstration of change of light emission color in Nafion membrane induced by proton conductivity Credit Dr Makoto Tadokoro Usage Restrictions None 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.