title: Proteolytic enzyme modified metal oxide electrodes as potentiometric sensors.
mesh_terms: D004566:Electrodes; D004800:Enzymes, Immobilized; D010087:Oxides / Q000032:analysis*; D010447:Peptide Hydrolases; D011199:Potentiometry / Q000295:instrumentation*
chemical_list: D004800:Enzymes, Immobilized; D010087:Oxides; D010447:Peptide Hydrolases