▎ 摘　　要

NOVELTY - The device has a working electrode (3), a reference electrode (2) and a counter-electrode (1) which comprises an elongated portion (5) and a three-dimensional shaped portion (4). The portion is positioned at the end of elongated portion. The three-dimensionally shaped portion comprises a wall containing a convex portion. The electrode incorporates a concave portion. The electrodes are obtained from a conductive material and a non-conductive material. The conductive material comprises polymer chosen from an epoxy resin and a polylactic acid. Filler is chosen from carbon portionicles and graphene oxide. A cell of the sensor comprises a reservoir 18 containing an electrolyte. The electrodeposition of gold nanoportionicles is performed. USE - Device such as biosensor, electrochemical biosensor, enzymatic glucose oxidase biosensor for detection of glucose, aptameric biosensor for detection of tetracycline used in veterinary and human medicine implemented in culture of microorganisms (all claimed) and/or as electrochemical unit of biofuel cell used in agri-food, environmental and even medical diagnostics sector. ADVANTAGE - The device causes the concave portions to cooperate electrically with the convex elements and thus to considerably increase the contact surface, and consequently to consider a miniaturization of the electronic components. The gold nanoportionicle electrodeposition step is implemented to create a thin layer of gold on the surface of the electrodes to improve the conductivity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a process for manufacturing electrodes used in three-dimensional printing module. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of electrodes integrated in the sensor. Counter-electrode (1) Reference electrode (2) Dimensional shaped portion (4) Elongated portion (5)