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Study of electropolymerized PEDOT:PSS transducers for application as electrochemical sensors in aqueous media

Benoudjit, Abdel Mohsen and Bader, Mamoun M. and Wan Salim, Wan Wardatul Amani (2018) Study of electropolymerized PEDOT:PSS transducers for application as electrochemical sensors in aqueous media. Sensing and Biosensing Research, 17. pp. 18-24. ISSN 2214-1804

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Abstract

Electropolymerized poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) onto screen-printed platinum electrodes was tested for stable charge/discharge cycle using cyclic voltammetry (CV) in aqueous media and its adhesion to the electrode surface was also examined. Electropolymerized PEDOT:PSS maintained most of its initial CV behavior after water-flow test (flow rate = 1 ml/s), whereas drop-cast PEDOT:PSS did not, indicating better adhesion and retention of the polymer's mechanical and electrical properties. Field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDS) suggest that film structure influence the stability of the redox current measurements. These results prove that careful electropolymerization techniques for synthesizing the PEDOT:PSS transducer are worth pursuing in developing robust electrochemical sensors suitable for continuous use in aqueous media. Developing such transducers is important for developing electrochemical sensors for biomedical and/or environmental monitoring where aqueous flow usually occurs on electrode surfaces.

Item Type: Article (Journal)
Additional Information: 7116/61508
Uncontrolled Keywords: Robust PEDOT:PSS transducer Electropolymerization deposition Liquid media Sensors
Subjects: Q Science > Q Science (General)
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA164 Bioengineering
T Technology > TA Engineering (General). Civil engineering (General) > TA170 Environmental engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr Wan Wardatul Amani Wan Salim
Date Deposited: 29 Jan 2018 16:29
Last Modified: 17 Dec 2018 16:10
URI: http://irep.iium.edu.my/id/eprint/61508

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