SEM Image of Electrodes (IMAGE) Georgia Institute of Technology Caption Scanning electron microscope images show details of the cotton-based electrodes used in a new biofuel cell. Credit Georgia Tech/Korea University 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.