ELM Closeup (IMAGE) University College London Caption Close up of the C-ELM panels containing the photosynthetic bacteria. Additional glass fibre reinforcement was used in this prototype. Credit Marcos Cruz Usage Restrictions For educational and editorial purposes 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.