Figure 19 Cyclic voltammograms at 0.3Vs in pH 5.5 buffer of

Electrochemical enzyme catalysis can often be identified by cyclic voltammetry. Mb, Hb and cyt P450 enzymes in various films catalyze the reductive dehalogenation of organohalides [11, 17, 33, 34, 48, 62, 63, 72, 84]. Figure 21 shows CVs of films of Mb and dimyristoylphosphatidylcholine (DMPC). In the absence of reactant trichloroacetic acid (TCA), the voltammogram features reversible reduction-oxidation peaks for the FeIII/FeII couple of Mb. In a solution 2 mM in