Figure 5.
Electrochemical evaluation of biocathodes with BOD adsorbed on MgOC with bilirubin as guide for orientation. CE = Pt wire; RE = Ag/AgCl/sat. KCl; 1 M phosphate buffer, pH 7.0. (a) Cyclic voltammograms. Legend: bilirubin amount. (b) Normalized reduction current obtained chronoamperometrically vs. bilirubin amount used for immobilizing BOD. 0.3 V vs. Ag/AgCl/sat. KCl. Current for electrode with BOD immobilized in absence of bilirubin = 1.