Chemical engineering Technology: general issues biocatalytic reactors bioelectrocatalysis bioelectrocatalysts bioelectrochemistry bioelectrosynthesis biofuel cells carbon nanomaterials catalysis direct electron transfer electrochemical reactors electrochemistry electrode modification electron transfer enzyme gold electrode hybrid vesicles liposomes membrane protein metallic nanostructures metalloenzyme microbial electrosynthesis nanostructured electrodes orientation oxidoreductase oxidoreductases photo-bioelectrocatalysis photosynthesis protein engineering