NOVELTY - A bioelectronic device comprises an electrically conductive carbon electrode; and a bioelectronic interface bonded to a surface of the electrically conductive carbon electrode. The bioelectronic interface includes a catalytically active material that facilitates electron transfer. The catalytically active material electrostatically bound directly or indirectly to the electrically conductive carbon electrode.    USE - Bioelectronic device for bioreactors, biosensors and biofuel cells.    ADVANTAGE - The bioelectronic device is inexpensive and easily renewable, and can promote electrical communication between a catalytically active material and an electrode to facilitate chemical reactions in an electrobiocatalytic reactor, to produce electricity in a biofuel cell, or to detect an analyte with a biosensor.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a method for reconstituting a bioelectronic interface of a bioelectronic device comprising providing a bioelectronic device comprising an electrically conductive carbon electrode and a bioelectronic interface having catalytically active material electrostatically bound directly or indirectly to a surface of the electrically conductive carbon electrode; exposing the interface to an aqueous medium having a first pH that releases the active material from the surface of the conductive electrode; exposing the interface to an aqueous medium having a first pH that releases the active material from the surface of the conductive carbon electrode; exposing the carbon electrode to an aqueous medium having a second pH that facilitates electrostatic bonding of a catalytically active material to the surface of the carbon electrode; and introducing catalytically active material to the aqueous medium, and electrostatically bonding the active material to the surface of the conductive carbon electrode, so that the interface's catalytic activity is restored; and    (2) an electrobiocatalytic reactor comprising a cathode compartment containing a first electrolytic solution and an anode compartment containing a second electrolytic solution, where the anode compartment and cathode compartments are separated by a proton permeable membrane; a cathode located at the cathode compartment and in contact with the first electrolyte, and an anode located at the anode compartment and in contact with the second electrolyte, where at least one of the anode and cathode is a carbon electrode; and a bioelectronic interface bonded to a surface of carbon electrode(s), where the interface includes a catalytically active material that facilitates electron transfer.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of an electrobiocatalytic reactor.    Reactor (1)    Electrodes (3A, 3B)    Cathode and anode compartments (4, 5)    Permeable membrane (6)    Glycerol solution (8)