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Authors: Nathalia Peixoto 1 ; Tjerignimin Silue 1 ; Catalina Vallejo-Giraldo 2 and Manus Biggs 2

Affiliations: 1 George Mason University, United States ; 2 National University of Ireland Galway, Ireland

ISBN: 978-989-758-170-0

Keyword(s): Implantable Electrodes, Electrode Coating, Stability of Electrode Coatings, Electrochemical Impedance Spectroscopy, Accelerated Aging, Cyclic Voltammetry, Long-term Electrode Testing.

Related Ontology Subjects/Areas/Topics: Biomaterials ; Biomedical Engineering ; Biomedical Instruments and Devices ; Implantable Electronics

Abstract: We have developed a deposition method that enhances charge delivery of screen printed electrodes by up to six times through electrochemical deposition of poly (3,4-ethylenedioxythiophene):p-toluenesulfonate (PEDOT-PTS). In order to elucidate the effects of PEDOT-PTS deposition on the long-term electrochemical characterization of screen-printed electrodes we characterized electrode stability with cyclic voltammetry and impedance spectroscopy at room temperature and at 47 °C. A deposition current of 0.4 mA/cm2 guarantees coverage of the working electrode conductive area with no spill of the conductive polymer through the insulating tracks. Control electrodes show charge storage capacity of 0.25 mC. PEDOT-PTS deposited electrodes are stable for over 4 months and present cathodic charge storage capacity of 1.25 mC.

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Paper citation in several formats:
Peixoto N., Silue T., Vallejo-Giraldo C. and Biggs M. (2016). Electrochemical Analysis of Accelerated Aging of PEDOT-PTS Coated Screen-printed Electrodes.In Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016) ISBN 978-989-758-170-0, pages 76-82. DOI: 10.5220/0005700600760082

@conference{biodevices16,
author={Nathalia Peixoto and Tjerignimin Silue and Catalina Vallejo-Giraldo and Manus Biggs},
title={Electrochemical Analysis of Accelerated Aging of PEDOT-PTS Coated Screen-printed Electrodes},
booktitle={Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016)},
year={2016},
pages={76-82},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005700600760082},
isbn={978-989-758-170-0},
}

TY - CONF

JO - Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016)
TI - Electrochemical Analysis of Accelerated Aging of PEDOT-PTS Coated Screen-printed Electrodes
SN - 978-989-758-170-0
AU - Peixoto N.
AU - Silue T.
AU - Vallejo-Giraldo C.
AU - Biggs M.
PY - 2016
SP - 76
EP - 82
DO - 10.5220/0005700600760082

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