Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing

Performance of a sensing device is dependent on its construction material, especially for components that are directly involved in transporting and translating signals across the device. Understanding the morphology and characteristics of the material components is therefore crucial in the developme...

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Main Authors:	Abd-Wahab, Mohd. Firdaus, Abdul Guthoos, Habibah Farhana, Wan Salim, Wan Wardatul Amani
Format:	Article
Language:	English English English
Published:	MDPI AG 2019
Subjects:	TK Electrical engineering. Electronics Nuclear engineering TP155 Chemical engineering TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/71020/ http://irep.iium.edu.my/71020/ http://irep.iium.edu.my/71020/ http://irep.iium.edu.my/71020/7/71020%20Solid-State%20rGO-PEDOT.pdf http://irep.iium.edu.my/71020/8/71020%20Solid-State%20rGO-PEDOT%20SCOPUS.pdf http://irep.iium.edu.my/71020/19/71020_Solid-state%20rGO-PEDOT_wos.pdf

id	iium-71020
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spelling	iium-710202019-07-18T05:57:14Z http://irep.iium.edu.my/71020/ Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing Abd-Wahab, Mohd. Firdaus Abdul Guthoos, Habibah Farhana Wan Salim, Wan Wardatul Amani TK Electrical engineering. Electronics Nuclear engineering TP155 Chemical engineering TP248.13 Biotechnology Performance of a sensing device is dependent on its construction material, especially for components that are directly involved in transporting and translating signals across the device. Understanding the morphology and characteristics of the material components is therefore crucial in the development of any sensing device. This work examines the morphological and electrochemical characteristics of reduced graphene oxide interspersed with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (rGO-PEDOT:PSS) used as a transducer material deposited on a commercially available screen-printed carbon electrode (SPCE). Electron microscopy shows that PEDOT:PSS is interspersed between rGO layers. Raman and XRD analyses suggest that the graphene crystallinity in GO-PEDOT:PSS and rGO-PEDOT:PSS remains intact. Instead, PEDOT:PSS undergoes a change in structure to allow PEDOT to blend into the graphene structure and partake in the π-π interaction with the surface of the rGO layers. Incorporation of PEDOT:PSS also appears to improve the electrochemical behavior of the composite, leading to a higher peak current of 1.184 mA, as measured by cyclic voltammetry, compared to 0.522 mA when rGO is used alone. The rGO-PEDOT:PSS transducing material blended with glucose oxidase was tested for glucose detection. The sensitivity of glucose detection was shown to be 57.3 µA/(mM·cm2) with a detection limit of 86.8 µM. MDPI AG 2019-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71020/7/71020%20Solid-State%20rGO-PEDOT.pdf application/pdf en http://irep.iium.edu.my/71020/8/71020%20Solid-State%20rGO-PEDOT%20SCOPUS.pdf application/pdf en http://irep.iium.edu.my/71020/19/71020_Solid-state%20rGO-PEDOT_wos.pdf Abd-Wahab, Mohd. Firdaus and Abdul Guthoos, Habibah Farhana and Wan Salim, Wan Wardatul Amani (2019) Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing. Biosensors, 9 (1). pp. 1-15. ISSN 2079-6374 https://www.mdpi.com/2079-6374/9/1/36/htm 10.3390/bios9010036
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TK Electrical engineering. Electronics Nuclear engineering TP155 Chemical engineering TP248.13 Biotechnology
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering TP155 Chemical engineering TP248.13 Biotechnology Abd-Wahab, Mohd. Firdaus Abdul Guthoos, Habibah Farhana Wan Salim, Wan Wardatul Amani Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing
description	Performance of a sensing device is dependent on its construction material, especially for components that are directly involved in transporting and translating signals across the device. Understanding the morphology and characteristics of the material components is therefore crucial in the development of any sensing device. This work examines the morphological and electrochemical characteristics of reduced graphene oxide interspersed with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (rGO-PEDOT:PSS) used as a transducer material deposited on a commercially available screen-printed carbon electrode (SPCE). Electron microscopy shows that PEDOT:PSS is interspersed between rGO layers. Raman and XRD analyses suggest that the graphene crystallinity in GO-PEDOT:PSS and rGO-PEDOT:PSS remains intact. Instead, PEDOT:PSS undergoes a change in structure to allow PEDOT to blend into the graphene structure and partake in the π-π interaction with the surface of the rGO layers. Incorporation of PEDOT:PSS also appears to improve the electrochemical behavior of the composite, leading to a higher peak current of 1.184 mA, as measured by cyclic voltammetry, compared to 0.522 mA when rGO is used alone. The rGO-PEDOT:PSS transducing material blended with glucose oxidase was tested for glucose detection. The sensitivity of glucose detection was shown to be 57.3 µA/(mM·cm2) with a detection limit of 86.8 µM.
format	Article
author	Abd-Wahab, Mohd. Firdaus Abdul Guthoos, Habibah Farhana Wan Salim, Wan Wardatul Amani
author_facet	Abd-Wahab, Mohd. Firdaus Abdul Guthoos, Habibah Farhana Wan Salim, Wan Wardatul Amani
author_sort	Abd-Wahab, Mohd. Firdaus
title	Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing
title_short	Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing
title_full	Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing
title_fullStr	Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing
title_full_unstemmed	Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing
title_sort	solid-state rgo-pedot:pss transducing material for cost-effective enzymatic sensing
publisher	MDPI AG
publishDate	2019
url	http://irep.iium.edu.my/71020/ http://irep.iium.edu.my/71020/ http://irep.iium.edu.my/71020/ http://irep.iium.edu.my/71020/7/71020%20Solid-State%20rGO-PEDOT.pdf http://irep.iium.edu.my/71020/8/71020%20Solid-State%20rGO-PEDOT%20SCOPUS.pdf http://irep.iium.edu.my/71020/19/71020_Solid-state%20rGO-PEDOT_wos.pdf
first_indexed	2023-09-18T21:40:48Z
last_indexed	2023-09-18T21:40:48Z
_version_	1777413126883377152

Solid-state rGO-PEDOT:PSS transducing material for cost-effective enzymatic sensing

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