Comparison of Glucose Oxidation by Crosslinked Redox Polymer Enzyme Electrodes Containing Carbon Nanotubes and a Range of Glucose Oxidising Enzymes

Domhnall MacAodha; Peter O'Conghaile; Brenda Egan; Paul Kavanagh; Christoph Sygmund; Roland Ludwig; Dónal Leech

doi:10.1002/elan.201200536

Comparison of Glucose Oxidation by Crosslinked Redox Polymer Enzyme Electrodes Containing Carbon Nanotubes and a Range of Glucose Oxidising Enzymes

Domhnall MacAodha, Peter O'Conghaile, Brenda Egan, Paul Kavanagh, Christoph Sygmund, Roland Ludwig, Dónal Leech^*

^*Corresponding author for this work

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

21 Citations (Scopus)

Abstract

The sugar oxidising enzymes glucose oxidase, glucose dehydrogenases (GDH) and cellobiose dehydrogenases (CDH) were co-immobilised, in the presence of multiwalled carbon nanotubes, with osmium redox polymers. Under pseudo-physiological conditions of 5mM glucose, 150mM NaCl, 37°C, glucose oxidation current densities above 800μAcm^-2 are obtained from films containing an [Os(4,4'-dimethyl-2,2'-bipyridine)₂(poly-vinylimidazole)₁₀Cl]⁺ redox polymer, redox potential 0.1V vs. Ag/AgCl, and either glucose oxidase or FAD-dependant GDH. Current produced by, and stability of, glucose-oxidising half-cells is compared in 100mM glucose, with films containing CDHs proving most stable. Such results show promise for development of glucose-oxidising enzymatic fuel cells.

Original language	English
Pages (from-to)	94-100
Number of pages	7
Journal	Electroanalysis
Volume	25
Issue number	1
Early online date	05 Dec 2012
DOIs	https://doi.org/10.1002/elan.201200536
Publication status	Published - 18 Jan 2013
Externally published	Yes

Keywords

Enzymes
Fuel cells
Glucose oxidation
Multiwalled carbon nanotubes
Osmium redox polymer

ASJC Scopus subject areas

Analytical Chemistry
Electrochemistry

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title = "Comparison of Glucose Oxidation by Crosslinked Redox Polymer Enzyme Electrodes Containing Carbon Nanotubes and a Range of Glucose Oxidising Enzymes",

abstract = "The sugar oxidising enzymes glucose oxidase, glucose dehydrogenases (GDH) and cellobiose dehydrogenases (CDH) were co-immobilised, in the presence of multiwalled carbon nanotubes, with osmium redox polymers. Under pseudo-physiological conditions of 5mM glucose, 150mM NaCl, 37°C, glucose oxidation current densities above 800μAcm-2 are obtained from films containing an [Os(4,4'-dimethyl-2,2'-bipyridine)2(poly-vinylimidazole)10Cl]+ redox polymer, redox potential 0.1V vs. Ag/AgCl, and either glucose oxidase or FAD-dependant GDH. Current produced by, and stability of, glucose-oxidising half-cells is compared in 100mM glucose, with films containing CDHs proving most stable. Such results show promise for development of glucose-oxidising enzymatic fuel cells.",

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AU - MacAodha, Domhnall

AU - O'Conghaile, Peter

AU - Egan, Brenda

AU - Kavanagh, Paul

AU - Sygmund, Christoph

AU - Ludwig, Roland

AU - Leech, Dónal

PY - 2013/1/18

Y1 - 2013/1/18

N2 - The sugar oxidising enzymes glucose oxidase, glucose dehydrogenases (GDH) and cellobiose dehydrogenases (CDH) were co-immobilised, in the presence of multiwalled carbon nanotubes, with osmium redox polymers. Under pseudo-physiological conditions of 5mM glucose, 150mM NaCl, 37°C, glucose oxidation current densities above 800μAcm-2 are obtained from films containing an [Os(4,4'-dimethyl-2,2'-bipyridine)2(poly-vinylimidazole)10Cl]+ redox polymer, redox potential 0.1V vs. Ag/AgCl, and either glucose oxidase or FAD-dependant GDH. Current produced by, and stability of, glucose-oxidising half-cells is compared in 100mM glucose, with films containing CDHs proving most stable. Such results show promise for development of glucose-oxidising enzymatic fuel cells.

AB - The sugar oxidising enzymes glucose oxidase, glucose dehydrogenases (GDH) and cellobiose dehydrogenases (CDH) were co-immobilised, in the presence of multiwalled carbon nanotubes, with osmium redox polymers. Under pseudo-physiological conditions of 5mM glucose, 150mM NaCl, 37°C, glucose oxidation current densities above 800μAcm-2 are obtained from films containing an [Os(4,4'-dimethyl-2,2'-bipyridine)2(poly-vinylimidazole)10Cl]+ redox polymer, redox potential 0.1V vs. Ag/AgCl, and either glucose oxidase or FAD-dependant GDH. Current produced by, and stability of, glucose-oxidising half-cells is compared in 100mM glucose, with films containing CDHs proving most stable. Such results show promise for development of glucose-oxidising enzymatic fuel cells.

KW - Enzymes

KW - Fuel cells

KW - Glucose oxidation

KW - Multiwalled carbon nanotubes

KW - Osmium redox polymer

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VL - 25

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JO - Electroanalysis

JF - Electroanalysis

IS - 1

ER -

Comparison of Glucose Oxidation by Crosslinked Redox Polymer Enzyme Electrodes Containing Carbon Nanotubes and a Range of Glucose Oxidising Enzymes

Abstract

Keywords

ASJC Scopus subject areas

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