NRL Solar Microbial Fuel Cell (IMAGE) Naval Research Laboratory Caption This is a schematic depiction of simplified mechanism of power generation by the benthic microbial fuel cell (BMFC), without box labeled '5' corresponding to photosynthesis, and for the microbial photoelectrochemical solar microbial fuel cell (SMFC) reported here, with box labeled 5. Other labels include: (1) biofilm catalyzed anode reaction; (2) biofilm catalyzed cathode reaction; (3) fermentative reaction, and (4) the microbial oxygen barrier. Credit (U.S. Naval Research Laboratory) 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.