Alternating electron transfer mechanism in the case of high-performance tetrathiafulvalene-tetracyanoquinodimethane enzymatic electrodes

► Experimental evidence of alternating electron transfer mechanism in the case of TTF-TCNQ enzymatic electrodes. ► TTF is a mediator in a more negative potential range, while TCNQ in a more positive. ► High-performance TTF-TCNQ enzymatic electrodes for biofuel cell and biosensor applications.