Electrical contacting of redox enzymes with electrode supports attracts substantial research efforts directed to the development of biosensors, electrobiocatalyzed chemical transformations,and the development of biofuel cell elements. Tethering of electroactive relays to redox proteins or the immobilization of redox proteins in electroactive polymers6 are common practices to electrically contac…
Abstract: The effect of a constant magnetic field on bioelectrocatalytic transformations of three different enzyme assemblies linked to electrodes is examined and correlated with a theoretical magnetohydrodynamic model. The systems consist of surface-reconstituted glucose oxidase (GOx), an integrated lactate dehydrogenase/nicotinamide/pyrroloquinoline quinone assembly (LDH/NAD+-PQQ), and a…
Abstract: An electroswitchable and tunable biofuel cell based on the biocatalyzed oxidation of glucose is described. The anode consists of a Cu2+-poly(acrylic acid) film on which the redox-relay pyrroloquinoline quinone (PQQ) and the flavin adenine dinucleotide (FAD) cofactor are covalently linked. Apo-glucose oxidase is reconstituted on the FAD sites to yield the glucose oxidase (GOx)-fun…