Enhancement of Electrochemical Performance of Bilirubin Oxidase Modified Gas Diffusion Biocathode by Porphyrin Precursor

Figure 5

Representative step potential curves for BOx air breathing cathodes modified with NaOH only (black square), NaOH-hematin (red circle), and NaOH (EDC/NHS)-hematin (blue triangle) or no enhancement (green inverted triangle) tested in 245 mM PBS, pH 7.0.