Electrochemical characterization of Graphene-based transducers for biosensor development

Electrochemical characterization of graphene-based nanocomposites as transducer material for highly sensitive biosensors was performed. Parameters that were varied include graphene oxide (GO) concentration and amount of added gold nanoparticles (AuNPs) as well as Nafion as binder for enhancing elect...

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Main Authors:	Arris, Farrah Aida, Wan Salim, Wan Wardatul Amani
Format:	Conference or Workshop Item
Language:	English
Published:	IIUM 2016
Subjects:	T Technology (General)
Online Access:	http://irep.iium.edu.my/52690/ http://irep.iium.edu.my/52690/8/52690-edited.pdf

id	iium-52690
recordtype	eprints
spelling	iium-526902016-11-29T07:12:31Z http://irep.iium.edu.my/52690/ Electrochemical characterization of Graphene-based transducers for biosensor development Arris, Farrah Aida Wan Salim, Wan Wardatul Amani T Technology (General) Electrochemical characterization of graphene-based nanocomposites as transducer material for highly sensitive biosensors was performed. Parameters that were varied include graphene oxide (GO) concentration and amount of added gold nanoparticles (AuNPs) as well as Nafion as binder for enhancing electrical conductivity of the transducer layer. The nanocomposite-modified GCE transducer layers were fabricated via a simple two-step drop-cast and subsequent electrochemical reduction. Cyclic voltammetry (CV) was used to characterize the redox capability of the transducer layer. Electrochemical deposition of ultra-highly-concentrated single-layer graphene oxide (UHC GO) suspension with a concentration of 6.2 mg/ml gave higher anodic peak current, Ipa, after electrochemical reduction compared to most peak currents reported in the literature for a 3-mm inner-diameter electrode; adding UHC GO:AuNPs in a 2:1 ratio followed by electrochemical reduction resulted in even higher Ipa, whereas adding UHC GO:Nafion in a 4:1 ratio gave promising results for prolonged shelf-life of the biosensor. Therefore, UHC GO-AuNPs-Nafion as nanocomposite is an excellent precursor for the development of a redox-active transducer that results in highly sensitive biosensors. IIUM 2016 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/52690/8/52690-edited.pdf Arris, Farrah Aida and Wan Salim, Wan Wardatul Amani (2016) Electrochemical characterization of Graphene-based transducers for biosensor development. In: 4th International Conference on Biotechnology Engineering 2016 (ICBioE 2016), 25th-27th July 2016, Kuala Lumpur.
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	T Technology (General)
spellingShingle	T Technology (General) Arris, Farrah Aida Wan Salim, Wan Wardatul Amani Electrochemical characterization of Graphene-based transducers for biosensor development
description	Electrochemical characterization of graphene-based nanocomposites as transducer material for highly sensitive biosensors was performed. Parameters that were varied include graphene oxide (GO) concentration and amount of added gold nanoparticles (AuNPs) as well as Nafion as binder for enhancing electrical conductivity of the transducer layer. The nanocomposite-modified GCE transducer layers were fabricated via a simple two-step drop-cast and subsequent electrochemical reduction. Cyclic voltammetry (CV) was used to characterize the redox capability of the transducer layer. Electrochemical deposition of ultra-highly-concentrated single-layer graphene oxide (UHC GO) suspension with a concentration of 6.2 mg/ml gave higher anodic peak current, Ipa, after electrochemical reduction compared to most peak currents reported in the literature for a 3-mm inner-diameter electrode; adding UHC GO:AuNPs in a 2:1 ratio followed by electrochemical reduction resulted in even higher Ipa, whereas adding UHC GO:Nafion in a 4:1 ratio gave promising results for prolonged shelf-life of the biosensor. Therefore, UHC GO-AuNPs-Nafion as nanocomposite is an excellent precursor for the development of a redox-active transducer that results in highly sensitive biosensors.
format	Conference or Workshop Item
author	Arris, Farrah Aida Wan Salim, Wan Wardatul Amani
author_facet	Arris, Farrah Aida Wan Salim, Wan Wardatul Amani
author_sort	Arris, Farrah Aida
title	Electrochemical characterization of Graphene-based transducers for biosensor development
title_short	Electrochemical characterization of Graphene-based transducers for biosensor development
title_full	Electrochemical characterization of Graphene-based transducers for biosensor development
title_fullStr	Electrochemical characterization of Graphene-based transducers for biosensor development
title_full_unstemmed	Electrochemical characterization of Graphene-based transducers for biosensor development
title_sort	electrochemical characterization of graphene-based transducers for biosensor development
publisher	IIUM
publishDate	2016
url	http://irep.iium.edu.my/52690/ http://irep.iium.edu.my/52690/8/52690-edited.pdf
first_indexed	2023-09-18T21:14:37Z
last_indexed	2023-09-18T21:14:37Z
_version_	1777411479752933376

Electrochemical characterization of Graphene-based transducers for biosensor development

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