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Miniature direct electron transfer based sulphite/oxygen enzymatic fuel cells
Malmö högskola, Faculty of Health and Society (HS), Department of Biomedical Science (BMV).
Malmö högskola, Faculty of Health and Society (HS), Department of Biomedical Science (BMV).
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2015 (English)In: Biosensors & bioelectronics, ISSN 0956-5663, E-ISSN 1873-4235, Vol. 66, p. 39-42Article in journal (Refereed)
Abstract [en]

A direct electron transfer (DET) based sulphite/oxygen biofuel cell is reported that utilises human sulphite oxidase (hSOx) and Myrothecium verrucaria bilirubin oxidase (MvBOx) and nanostructured gold electrodes. For bioanode construction, the nanostructured gold microelectrodes were further modified with 3,3′-dithiodipropionic acid di(N-hydroxysuccinimide ester) to which polyethylene imine was covalently attached. hSOx was adsorbed onto this chemically modified nanostructured electrode with high surface loading of electroactive enzyme and in presence of sulphite high anodic bioelectrocatalytic currents were generated with an onset potential of 0.05 V vs. NHE. The biocathode contained MvBOx directly adsorbed to the deposited gold nanoparticles for cathodic oxygen reduction starting at 0.71 V vs. NHE. Both enzyme electrodes were integrated to a DET-type biofuel cell. Power densities of 8 and 1 μW cm−2 were achieved at 0.15 V and 0.45 V of cell voltages, respectively, with the membrane based biodevices under aerobic conditions.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 66, p. 39-42
Keywords [en]
Enzymatic fuel cell, Microscale electrode, Direct electron transfer, Sulphite oxidase, Bilirubin oxidase
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:mau:diva-14600DOI: 10.1016/j.bios.2014.10.080ISI: 000348619800006PubMedID: 25460879Scopus ID: 2-s2.0-84910002458Local ID: 18446OAI: oai:DiVA.org:mau-14600DiVA, id: diva2:1418121
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2024-02-05Bibliographically approved

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Pankratov, DmitryFalk, MagnusShleev, Sergey

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