Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry

Screen-printed glassy carbon electrodes (GCEs) 2 mm in diameter deposited with composites of reduced graphene oxide-gold nanoparticles (rGO-AuNPs), reduced graphene oxide–cellulose (rGO-cellulose), and reduced graphene oxide– gold nanoparticles-cellulose (rGO-AuNPs-cellulose) were characterized in...

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Main Authors:	Abdul Guthoos, Habibah Farhana, Noorin, Nik Nurfaten, Ismail, Nur Alya Batrisya, Tumian, Afidalina, Wan Salim, Wan Wardatul Amani
Format:	Article
Language:	English English
Published:	Asian Research Publishing Network (ARPN) 2018
Subjects:	QH301 Biology
Online Access:	http://irep.iium.edu.my/69303/ http://irep.iium.edu.my/69303/ http://irep.iium.edu.my/69303/1/69303_Effect%20of%20gold%20nanoparticles%20and%20electrode%20drying%20time%20on%20reduced%20graphene_article.pdf http://irep.iium.edu.my/69303/2/69303_Effect%20of%20gold%20nanoparticles%20and%20electrode%20drying%20time%20on%20reduced%20graphene_scopus.pdf

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recordtype	eprints
spelling	iium-693032019-02-28T14:46:10Z http://irep.iium.edu.my/69303/ Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry Abdul Guthoos, Habibah Farhana Noorin, Nik Nurfaten Ismail, Nur Alya Batrisya Tumian, Afidalina Wan Salim, Wan Wardatul Amani QH301 Biology Screen-printed glassy carbon electrodes (GCEs) 2 mm in diameter deposited with composites of reduced graphene oxide-gold nanoparticles (rGO-AuNPs), reduced graphene oxide–cellulose (rGO-cellulose), and reduced graphene oxide– gold nanoparticles-cellulose (rGO-AuNPs-cellulose) were characterized in terms of the effect of drying time on the peak oxidative current and surface roughness. From the cyclic voltammetry (CV) graph, at 12 hrs of electrode drying time in ambient airtherGO-AuNPs/GCE showed the highest anodic peak current of 1252.82 µA, in comparison to therGOcellulose/GCE with the lowest at 24.64 µA. FESEM results show that the rGO-AuNPs composite has the roughest surface morphology as well. Furthermore, there seem to be two layers of surface morphology in cellulose-based samples. The results obtained suggest that rGO-AuNPs/GCEs with 12 hours drying time have the highest peak current and the largest surface area owing to its roughness, thus implying that rGO-AuNPs has the most electrode area involved in redox reactions. The results also suggest the rGO-AuNPs nanocomposite can be effective as a sensitive transducer material for an electrochemical biosensor. Asian Research Publishing Network (ARPN) 2018-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/69303/1/69303_Effect%20of%20gold%20nanoparticles%20and%20electrode%20drying%20time%20on%20reduced%20graphene_article.pdf application/pdf en http://irep.iium.edu.my/69303/2/69303_Effect%20of%20gold%20nanoparticles%20and%20electrode%20drying%20time%20on%20reduced%20graphene_scopus.pdf Abdul Guthoos, Habibah Farhana and Noorin, Nik Nurfaten and Ismail, Nur Alya Batrisya and Tumian, Afidalina and Wan Salim, Wan Wardatul Amani (2018) Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry. ARPN Journal of Engineering and Applied Sciences, 13 (4). pp. 1420-1426. ISSN 1819-6608 http://www.arpnjournals.org/jeas/research_papers/rp_2018/jeas_0218_6817.pdf
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	QH301 Biology
spellingShingle	QH301 Biology Abdul Guthoos, Habibah Farhana Noorin, Nik Nurfaten Ismail, Nur Alya Batrisya Tumian, Afidalina Wan Salim, Wan Wardatul Amani Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry
description	Screen-printed glassy carbon electrodes (GCEs) 2 mm in diameter deposited with composites of reduced graphene oxide-gold nanoparticles (rGO-AuNPs), reduced graphene oxide–cellulose (rGO-cellulose), and reduced graphene oxide– gold nanoparticles-cellulose (rGO-AuNPs-cellulose) were characterized in terms of the effect of drying time on the peak oxidative current and surface roughness. From the cyclic voltammetry (CV) graph, at 12 hrs of electrode drying time in ambient airtherGO-AuNPs/GCE showed the highest anodic peak current of 1252.82 µA, in comparison to therGOcellulose/GCE with the lowest at 24.64 µA. FESEM results show that the rGO-AuNPs composite has the roughest surface morphology as well. Furthermore, there seem to be two layers of surface morphology in cellulose-based samples. The results obtained suggest that rGO-AuNPs/GCEs with 12 hours drying time have the highest peak current and the largest surface area owing to its roughness, thus implying that rGO-AuNPs has the most electrode area involved in redox reactions. The results also suggest the rGO-AuNPs nanocomposite can be effective as a sensitive transducer material for an electrochemical biosensor.
format	Article
author	Abdul Guthoos, Habibah Farhana Noorin, Nik Nurfaten Ismail, Nur Alya Batrisya Tumian, Afidalina Wan Salim, Wan Wardatul Amani
author_facet	Abdul Guthoos, Habibah Farhana Noorin, Nik Nurfaten Ismail, Nur Alya Batrisya Tumian, Afidalina Wan Salim, Wan Wardatul Amani
author_sort	Abdul Guthoos, Habibah Farhana
title	Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry
title_short	Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry
title_full	Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry
title_fullStr	Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry
title_full_unstemmed	Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry
title_sort	effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry
publisher	Asian Research Publishing Network (ARPN)
publishDate	2018
url	http://irep.iium.edu.my/69303/ http://irep.iium.edu.my/69303/ http://irep.iium.edu.my/69303/1/69303_Effect%20of%20gold%20nanoparticles%20and%20electrode%20drying%20time%20on%20reduced%20graphene_article.pdf http://irep.iium.edu.my/69303/2/69303_Effect%20of%20gold%20nanoparticles%20and%20electrode%20drying%20time%20on%20reduced%20graphene_scopus.pdf
first_indexed	2023-09-18T21:38:22Z
last_indexed	2023-09-18T21:38:22Z
_version_	1777412973895090176

Effect of gold nanoparticles and electrode drying time on reduced graphene oxide–based composite with respect to peak current of cyclic voltammetry

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