Graphene Membrane (IMAGE) Penn State Caption This is a figure showing the proton transfer channel across a quad-defect in graphene, as obtained from a ReaxFF molecular dynamics simulation. Credit Murali Raju, Penn State 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.