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A comparative study of biocathodes based on multiwall carbon nanotube buckypapers modified with three different multicopper oxidases
Malmö högskola, Faculty of Health and Society (HS), Department of Biomedical Science (BMV).
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2013 (English)In: Electroanalysis, ISSN 1040-0397, E-ISSN 1521-4109, Vol. 25, no 5, p. 1143-1149Article in journal (Refereed)
Abstract [en]

14 Single- and multi-​walled carbon nanotubes from different sources were characterized in detail, and the characteristics obtained were carefully analyzed. The carbon material with the highest capacitance, and also other superior properties ("Taunit-​M" from "NanoTechCenter", Russia)​, was chosen for further modification and fabrication of buckypaper based electrodes. These electrodes were biomodified with plant and fungal laccases, as well as fungal bilirubin oxidase. The designed biocathodes were studied in simple buffers and also in a complex physiol. fluid (human serum)​. Biocathodes based on immobilized fungal laccase were bioelectrocatalytically inactive in chloride contg. media at neutral pH. In spite of the quite high current densities realized using biodevices based on plant laccase and fungal bilirubin oxidase, the limited thermal stability of the enzymes renders the biocathodes inadequate for practical applications in implanted situations.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2013. Vol. 25, no 5, p. 1143-1149
Keywords [en]
Biocathode, Bilirubin oxidase, Buckypaper, Laccase, Multicopper oxidase
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:mau:diva-14731DOI: 10.1002/elan.201200516ISI: 000318798000008Scopus ID: 2-s2.0-84877686564Local ID: 16498OAI: oai:DiVA.org:mau-14731DiVA, id: diva2:1418252
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2024-02-05Bibliographically approved

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Publisher's full textScopushttp://onlinelibrary.wiley.com/doi/10.1002/elan.201200516/abstract

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Pankratov, DmitryShleev, Sergey

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