Direct electron-transfer conduits constructed at the interface between multicopper oxidase and nanocrystalline semiconductive Fe oxides

► BOD has a specific affinity for hematite surfaces and establishes a direct electron-transfer conduit to the conduction band of α-Fe2O3. ► Photoirradiation to the hybrid of BOD to α-Fe2O3 induces the direct electron-transfer from the conduction band to the T1 sites of BOD. ► The hybrid of BOD to α-Fe2O3 catalyzes multi-electron reduction of O2 under visible-light irradiation.