Electrochemical Sensing and Characterization of Aerobic Marine Bacterial Biofilms on Gold Electrode Surfaces

Reliable and accurate in situ sensors capable of detecting quantifying troublesome marine biofilms on metallic surfaces are increasingly necessary. A 0.2 mm diameter gold electrochemical sensor was fully characterized using cyclic voltammetry abiotic biotic artificial seawater media within a continuous culture flow cell to detect the growth development an aerobic Pseudoalteromonas sp. biofilm. Deconvolution responses enable constituent extracellular electron transfer biofilm be resolved. Differentiation enhanced oxygen reduction kinetics bacterial is linked enzyme redox mediator activities.