Placing Membrane (IMAGE) Penn State Caption A membrane electrode assembly is shown being inserted into a fuel cell testing stand. By creating several variations of membranes and studying them under similar conditions, the research team can predict the most optimal structure in an active and stable fuel cell. Credit Patrick Mansell Usage Restrictions Non commercial use 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.