▎ 摘　　要

NOVELTY - Interdigitated electrode comprises a graphene metal complex in which micro metal particles and a part of the graphene complex layer are connected. The graphene complex layer has a three-dimensional structure in which several layers of graphene are stacked and bent in an arbitrary direction, a part of the empty space between the fine metal particles is filled with the graphene complex layer and has a porous structure interconnected to two separate electrodes comprising a hybrid graphene electrode in which electrons flow through the graphene metal complex which are located adjacent to each other and causes inflow or emission of external electrons. USE - The interdigitated electrode is useful in electrochemical-based immune sensor for measuring current generated by an oxidation-reduction electrochemical reaction for detecting specific target material (all claimed).