Experiments led under chronoamperometries

Biofilm colonized electrodes are prepared in electrochemical cells under chronoamperometries (constant potential). Current production increase in function of the time and it is correlated to the development of the biofilm on the working electrode surface. For example, here is presented an electrochemically-active biofilm grown at the surface of a graphite electrode and able to catalyse the oxidation of organic matter present in waste water. The other example shows a cathodic seawater biofilm developed at the surface of a stainless steel coupon with the property to catalyse the oxygen reduction reaction.