Extracellular Electron Transfer System on Biofilm

A microbial electrochemical system (MES) is a system that uses microorganisms as biocatalysts to produce chemicals or energy. The factors involved in the catalytic reaction of microorganisms in MES are more diverse and complex than chemical reactions, so research on MES requires a broad background; such as extracellular electron transfer (EET) system of electrochemically active bacteria, structural characteristics of the conductive biofilm on the electrodes, and relationship between EET system and the biofilm configuration. This background lead to interspecies electron transfer in methanogens and EAB mixed culture systems in the methane production process.