Peer-Reviewed Journal Details
Mandatory Fields
MacAodha, D,Conghaile, PO,Egan, B,Kavanagh, P,Sygmund, C,Ludwig, R,Leech, D
2013
January
Electroanalysis
Comparison of Glucose Oxidation by Crosslinked Redox Polymer Enzyme Electrodes Containing Carbon Nanotubes and a Range of Glucose Oxidising Enzymes
Published
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Optional Fields
Enzymes Fuel cells Glucose oxidation Multiwalled carbon nanotubes Osmium redox polymer BIOFUEL CELLS AMPEROMETRIC DETERMINATION CELLOBIOSE DEHYDROGENASE FUEL-CELLS REDUCTION STABILITY OXIDASE IMMOBILIZATION BOROHYDRIDE OSMIUM(II)
25
94
100
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 5 mM glucose, 150 mM NaCl, 37?degrees C, glucose oxidation current densities above 800 mu A?cm-2 are obtained from films containing an [Os(4,4'-dimethyl-2,2'-bipyridine)2(poly-vinylimidazole)10Cl]+ redox polymer, redox potential 0.1 V vs. Ag/AgCl, and either glucose oxidase or FAD-dependant GDH. Current produced by, and stability of, glucose-oxidising half-cells is compared in 100 mM glucose, with films containing CDHs proving most stable. Such results show promise for development of glucose-oxidising enzymatic fuel cells.
DOI 10.1002/elan.201200536
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