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. 2020 Jul 21;59(38):16506–16510. doi: 10.1002/anie.202006824

Figure 2.

Figure 2

Electrochemical characterization of the redox polymer/DdHydAB‐based bioanode. a) Cyclic voltammograms (5 mV s−1) of a P(GMA‐BA‐PEGMA)‐vio//P(N3MA‐BA‐GMA)‐vio/DdHydAB gas‐diffusion bioanode in the presence of H2 (red traces, three consecutive CVs) and Ar (black traces, three consecutive CVs). B) Chronoamperometry of a P(GMA‐BA‐PEGMA)‐vio//P(N3MA‐BA‐GMA)‐vio/DdHydAB bioanode at an applied potential of +0.16 V vs. SHE and in H2 gas diffusion mode. Working electrolyte: 0.1 m phosphate buffer (pH 7.4); nominal hydrogenase loading: 39.8 nmol cm−2, total polymer loading: 1.8 mg cm−2.