Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid

We compared the differential pulse voltammetric performance of various chemically modified graphenes (CMGs) to those of glassy carbon (GC) and edge plane pyrolytic graphite (EPPG), using a biologically important analyte, uric acid. Analytical parameters of sensitivity, linearity, repeatability and s...

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Main Authors: Chee, Sze Yin, Pumera, Martin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/96260
http://hdl.handle.net/10220/10859
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-962602020-03-07T12:37:17Z Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid Chee, Sze Yin Pumera, Martin School of Physical and Mathematical Sciences We compared the differential pulse voltammetric performance of various chemically modified graphenes (CMGs) to those of glassy carbon (GC) and edge plane pyrolytic graphite (EPPG), using a biologically important analyte, uric acid. Analytical parameters of sensitivity, linearity, repeatability and selectivity were considered. Graphite oxide, graphene oxide, chemically reduced graphene oxide, electrochemically reduced graphene oxide and thermally reduced graphene oxide (TR-GO) were studied. TR-GO showed the highest sensitivity and selectivity, but among the poorest linearity and reproducibility. The other CMGs generally demonstrated more sensitive but less selective and reproducible responses than GC and EPPG. These results will enhance our understanding of the applicability of CMGs in biosensing. 2013-07-01T06:32:02Z 2019-12-06T19:27:56Z 2013-07-01T06:32:02Z 2019-12-06T19:27:56Z 2012 2012 Journal Article Chee, S. Y., & Pumera, M. (2012). Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid. Electrochemistry Communications, 20, 141-144. 1388-2481 https://hdl.handle.net/10356/96260 http://hdl.handle.net/10220/10859 10.1016/j.elecom.2012.04.015 en Electrochemistry communications © 2012 Elsevier B.V.
institution Nanyang Technological University
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country Singapore
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language English
description We compared the differential pulse voltammetric performance of various chemically modified graphenes (CMGs) to those of glassy carbon (GC) and edge plane pyrolytic graphite (EPPG), using a biologically important analyte, uric acid. Analytical parameters of sensitivity, linearity, repeatability and selectivity were considered. Graphite oxide, graphene oxide, chemically reduced graphene oxide, electrochemically reduced graphene oxide and thermally reduced graphene oxide (TR-GO) were studied. TR-GO showed the highest sensitivity and selectivity, but among the poorest linearity and reproducibility. The other CMGs generally demonstrated more sensitive but less selective and reproducible responses than GC and EPPG. These results will enhance our understanding of the applicability of CMGs in biosensing.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Chee, Sze Yin
Pumera, Martin
format Article
author Chee, Sze Yin
Pumera, Martin
spellingShingle Chee, Sze Yin
Pumera, Martin
Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid
author_sort Chee, Sze Yin
title Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid
title_short Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid
title_full Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid
title_fullStr Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid
title_full_unstemmed Comparison of the electroanalytical performance of chemically modified graphenes (CMGs) using uric acid
title_sort comparison of the electroanalytical performance of chemically modified graphenes (cmgs) using uric acid
publishDate 2013
url https://hdl.handle.net/10356/96260
http://hdl.handle.net/10220/10859
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