Bacteria Modified Stainless Steel Anode for Glucose Fuel Cell

Electrooxidation (EO) of glucose (Glu) on a stainless steel (SS) electrode surface was investigated under two conditions: in the absence and presence of Pseudomonas bacteria.In its absence, CV analysis revealed a redox system within potential (E) range from -0.5 to 0 V.However, when bacteria suspension was introduced into the electrolytic solution, significant changes were observed.CV showed the emergence of anodic and cathodic peaks, accompanied by a substantial increase in current density (j).This indicated strong interactions between electrode surface and bacteria.The presence of bacteria also caused the redox system to shift towards more anodic E values.Despite this shift, oxidation j decreased.These findings suggest that Pseudomonas played a critical role in modifying the electrochemical behavior of Glu on SS electrode surface, possibly through direct interactions or alterations in the local environment at the electrode-electrolyte interface.