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

Sze Yin Chee; Martin Pumera

doi:10.1016/j.elecom.2012.04.015

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

Sze Yin Chee, Martin Pumera

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	141-144
Number of pages	4
Journal	Electrochemistry Communications
Volume	20
Issue number	1
DOIs	https://doi.org/10.1016/j.elecom.2012.04.015
Publication status	Published - 2012 Jul

Bibliographical note

Funding Information:
M.P. would like to thank Nanyang Assistant Professorship startup fund (NTU) . We wish to acknowledge the funding support for this project from Nanyang Technological University under the Undergraduate Research Experience on CAmpus (URECA) programme.

All Science Journal Classification (ASJC) codes

Electrochemistry

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10.1016/j.elecom.2012.04.015

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abstract = "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.",

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AB - 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.

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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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