Hydrogen Production Using Algae (image) University of Tennessee at Knoxville Caption This image shows the process by which Photosystem I in thermophilic blue-green algae can be catalyzed by platinum to produce a sustainable source of hydrogen. The system was highlighted in a paper by University of Tennessee, Knoxville research Barry Bruce, et al. in Nature Nanotechnology. Credit Barry D. Bruce/University of Tennessee, Knoxville Usage Restrictions This image may not be reproduced for any commercial interest or without permission from the University of Tennessee, Knoxville except when accompanying the attached release or a news story about the same. 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.