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Microelectrodes from PEDOT-carbon nanofiber composite for high performance neural recording, stimulation and neurochemical sensing

Saunier, Valentin and Flahaut, Emmanuel and Blatché, Marie-Charline and Bergaud, Christian and Maziz, Ali Microelectrodes from PEDOT-carbon nanofiber composite for high performance neural recording, stimulation and neurochemical sensing. (2020) MethodsX, 7. 101106. ISSN 2215-0161

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Official URL: https://doi.org/10.1016/j.mex.2020.101106

Abstract

This present method describes a versatile approach for the electrochemical synthesis of a composite material of Poly (3,4-ethylenedioxythiophene) (PEDOT) and Carbon Nanofibers (CNFs) for neural interfaces and biosensing applications. Oxidized CNFs were utilized as dopants of PEDOT to prepare the composite coating through electrochemical deposition on microelectrodes arrays (MEA). The experimental results of this study showed that PEDOT:CNF microelectrodes exhibit remarkable electrochemical properties, combining low impedance, high surface area, high charge injection capability and reliable neurotransmitters monitoring using amperometric techniques. Taken together, these results suggest the great potential of PEDOT:CNF composite for developing next- generation multifunctional microelectrodes for applications in neural therapies. •A simple approach for the electrochemical synthesis of PEDOT:CNF composite material on microelectrodes for neural interfaces and neurochemical sensing. •PEDOT:CNF microelectrodes exhibit remarkable electrochemical properties, combining low impedance and high charge injection capabilities. •PEDOT:CNF microelectrodes allowed the reliable detection of neurotransmitters with improved sensitivity.

Item Type:Article
Additional Information:This is an open access article under the CC BY-NC-ND license : https://creativecommons.org/licenses/by-nc-nd/4.0/. Thanks to Elsevier editor. The definitive version of this document is available at: https://www.sciencedirect.com/science/article/pii/S2215016120303265?via%3Dihub. This article refers to : Valentin Saunier, Emmanuel Flahaut, Marie-Charline Blatché, Christian Bergaud, Ali Maziz Carbon nanofiber-PEDOT composite films as novel microelectrode for neural interfaces and biosensing Biosensors and Bioelectronics, Volume 165, 1 October 2020, Pages 112413
HAL Id:hal-03003023
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:04 Nov 2020 14:37

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