NOVEL ENZYME ELECTRODE, AND FUEL CELL COMPRISING THE ENZYME ELECTRODE

摘要

Disclosed is an enzyme electrode in which an oxidation-reduction reaction proceeds by utilizing an enzyme as a catalyst. In the enzyme electrode, the enzyme immobilized thereon is so modified as to have increased affinity for a reaction substrate or an electron transfer mediator and/or an increased rate of reaction with the reaction substrate or the electron transfer mediator by adding or inserting at least one codon encoding a predetermined amino acid residue to a nucleotide sequence encoding the enzyme. On the enzyme electrode, an oxidation-reduction reaction can proceed with high efficiency. Therefore, an electric energy produced in the enzyme electrode can be output at a high level. For these reasons, the enzyme electrode can be used suitably in all types of fuel cells, biosensors and electronic devices.