Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing

Electron-transfer kinetics and impedance at the electrode-solution interface affect biosensor performance. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy(EIS) are used to understand the reversibility of electron transfer and impedance at the electrode-solution interface, respect...

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Main Authors:	Ismail, Nur Alya Batrisya, Abd. Wahab, Mohd. Firdaus, Wan Salim, Wan Wardatul Amani
Format:	Conference or Workshop Item
Language:	English English English
Published:	Institute of Electrical and Electronics Engineers Inc. 2019
Subjects:	Q Science (General) T Technology (General) TA164 Bioengineering
Online Access:	http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/1/69484_Cyclic%20voltammetry%20and%20electrochemical.pdf http://irep.iium.edu.my/69484/2/69484_Cyclic%20voltammetry%20and%20electrochemical_SCOPUS.pdf http://irep.iium.edu.my/69484/3/69484_Cyclic%20voltammetry%20and%20electrochemical_WOS.pdf

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recordtype	eprints
spelling	iium-694842019-06-13T08:34:21Z http://irep.iium.edu.my/69484/ Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing Ismail, Nur Alya Batrisya Abd. Wahab, Mohd. Firdaus Wan Salim, Wan Wardatul Amani Q Science (General) T Technology (General) TA164 Bioengineering Electron-transfer kinetics and impedance at the electrode-solution interface affect biosensor performance. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy(EIS) are used to understand the reversibility of electron transfer and impedance at the electrode-solution interface, respectively. Effective surface areas calculated based on the Randles-Sevcik equation for a bare screen-printed carbon electrode (SPCE), a graphene oxide (GO)-poly (3,4-ethylenedioxythiophene):polystyrenesulfonic acid (PEDOT:PSS)–modified electrode (GO-PEDOT:PSS/SPCE), a partially reduced graphene oxide-PEDOT:PSS–modified electrode (prGO-PEDOT:PSS/SPCE), and glucose oxidase (GOx) crosslinked with glutaraldehyde on partially reduced graphene oxide-PEDOT:PSS–modified electrodes (GOx/prGOPEDOT:PSS/SPCE) are 0.0717 mm2, 0.0794 mm2, 0.219 mm2, and 0.160 mm2, respectively. Nyquist plots from EIS show charge transfer resistance (Rct) of 430 μΩ, 148.2 Ω, 200.7 Ω, and 209.6 Ω, respectively, for the same electrodes. The high effective surface area and the Rct of prGO-PEDOT:PSS/SPCE indicate that the prGO-PEDOT:PSS composite is suitable as a transducer layer for glucose biosensing. Institute of Electrical and Electronics Engineers Inc. 2019-01-24 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/69484/1/69484_Cyclic%20voltammetry%20and%20electrochemical.pdf application/pdf en http://irep.iium.edu.my/69484/2/69484_Cyclic%20voltammetry%20and%20electrochemical_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/69484/3/69484_Cyclic%20voltammetry%20and%20electrochemical_WOS.pdf Ismail, Nur Alya Batrisya and Abd. Wahab, Mohd. Firdaus and Wan Salim, Wan Wardatul Amani (2019) Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing. In: 2018 IEEE EMBS Conference on Biomedical Engineering and Sciences )IECBES 2018), 3rd-6th December 2018, Kuching, Sarawak. https://ieeexplore.ieee.org/document/8626618 10.1109/IECBES.2018.8626618
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	Q Science (General) T Technology (General) TA164 Bioengineering
spellingShingle	Q Science (General) T Technology (General) TA164 Bioengineering Ismail, Nur Alya Batrisya Abd. Wahab, Mohd. Firdaus Wan Salim, Wan Wardatul Amani Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing
description	Electron-transfer kinetics and impedance at the electrode-solution interface affect biosensor performance. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy(EIS) are used to understand the reversibility of electron transfer and impedance at the electrode-solution interface, respectively. Effective surface areas calculated based on the Randles-Sevcik equation for a bare screen-printed carbon electrode (SPCE), a graphene oxide (GO)-poly (3,4-ethylenedioxythiophene):polystyrenesulfonic acid (PEDOT:PSS)–modified electrode (GO-PEDOT:PSS/SPCE), a partially reduced graphene oxide-PEDOT:PSS–modified electrode (prGO-PEDOT:PSS/SPCE), and glucose oxidase (GOx) crosslinked with glutaraldehyde on partially reduced graphene oxide-PEDOT:PSS–modified electrodes (GOx/prGOPEDOT:PSS/SPCE) are 0.0717 mm2, 0.0794 mm2, 0.219 mm2, and 0.160 mm2, respectively. Nyquist plots from EIS show charge transfer resistance (Rct) of 430 μΩ, 148.2 Ω, 200.7 Ω, and 209.6 Ω, respectively, for the same electrodes. The high effective surface area and the Rct of prGO-PEDOT:PSS/SPCE indicate that the prGO-PEDOT:PSS composite is suitable as a transducer layer for glucose biosensing.
format	Conference or Workshop Item
author	Ismail, Nur Alya Batrisya Abd. Wahab, Mohd. Firdaus Wan Salim, Wan Wardatul Amani
author_facet	Ismail, Nur Alya Batrisya Abd. Wahab, Mohd. Firdaus Wan Salim, Wan Wardatul Amani
author_sort	Ismail, Nur Alya Batrisya
title	Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing
title_short	Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing
title_full	Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing
title_fullStr	Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing
title_full_unstemmed	Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing
title_sort	cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - pedot:pss transducer for biochemical sensing
publisher	Institute of Electrical and Electronics Engineers Inc.
publishDate	2019
url	http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/ http://irep.iium.edu.my/69484/1/69484_Cyclic%20voltammetry%20and%20electrochemical.pdf http://irep.iium.edu.my/69484/2/69484_Cyclic%20voltammetry%20and%20electrochemical_SCOPUS.pdf http://irep.iium.edu.my/69484/3/69484_Cyclic%20voltammetry%20and%20electrochemical_WOS.pdf
first_indexed	2023-09-18T21:38:38Z
last_indexed	2023-09-18T21:38:38Z
_version_	1777412990560108544

Cyclic voltammetry and electrochemical impedance spectroscopy of partially reduced graphene oxide - PEDOT:PSS transducer for biochemical sensing

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