Realization and Characterization of Carbonic Layers on 4H-SiC for Electrochemical Detections

Julien Pezard (1) , Véronique Soulière (2) , Mihai Lazar (1) , Naoufel Haddour (3) , François Buret (3) , Christophe Raynaud (1, 4) , Dominique Planson (1, 4)

1 EE - Ampère, Département Energie Electrique
2 LMI - Laboratoire des Multimatériaux et Interfaces
3 BioIng - Ampère, Département Bioingénierie
4 INSA Lyon - Institut National des Sciences Appliquées de Lyon

Carbon materials are considered building blocks for most of electrochemical sensors. Their biocompatibility allows their use as transducers for biosensors. Furthermore, they can be patterned, giving interest in all-inclusive bioelectrochemical detection devices. In particular, graphene, boron doped diamond, and pyrolyzed photoresist films are suitable for this kind of application, which would give the ability to use these working electrodes within a fully designed apparatus completed by counter and reference electrode. In this paper, a pioneer work is exposed on the synthesis of these materials for use as electrochemical sensors and as transducers for biodetection of acetylcholine by adsorption of acetylthiocholinesterase. The lowest limit of detection reaches 6.98 μM, sensitivity 5.91 μA/mM, and a linear range from 6.98 μM to 0.55 mM.

Mots clés: carbonic layers; electrochemical sensors; PPF; BDD; graphene

Domaines: Energie électrique

Julien Pezard, Véronique Soulière, Mihai Lazar, Naoufel Haddour, François Buret, et al.. Realization and Characterization of Carbonic Layers on 4H-SiC for Electrochemical Detections. Materials Science Forum, 2017, 897, pp.739 - 742. ⟨10.4028/www.scientific.net/MSF.897.739⟩. ⟨hal-01644735⟩