Dawit T. Filmon in the laboratory (IMAGE) Technical University of Munich (TUM) Caption Embedded in a protecting polymer, hydrogenases can catalyze the conversion of hydrogen in fuel cells and water electrolysis. Side chains of the polymer enable the electron transfer. Dawit T. Filmon, scientist with Prof. Nicolas Plumere, professorship for bioelectrochemistry at the TUM Campus Straubing for Biotechnology and Sustainability, holds a starting material for these side chains in his hands. Credit Jan Winter / TUM 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.