Electrochemical detection of hydrogen peroxide on platinum-containing tetrahedral amorphous carbon sensors and evaluation of their biofouling properties

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorTujunen, Noora
dc.contributor.authorKaivosoja, Emilia
dc.contributor.authorProtopopova, Vera
dc.contributor.authorValle-Delgado, Juan José
dc.contributor.authorÖsterberg, Monika
dc.contributor.authorKoskinen, Jari
dc.contributor.authorLaurila, Tomi
dc.contributor.departmentDepartment of Electrical Engineering and Automation
dc.contributor.departmentDepartment of Materials Science and Engineering
dc.contributor.departmentDepartment of Forest Products Technology
dc.contributor.departmentDepartment of Chemistry and Materials Scienceen
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.date.accessioned2016-09-16T10:03:03Z
dc.date.issued2015-10-01
dc.description.abstractHydrogen peroxide is the product of various enzymatic reactions, and is thus typically utilized as the analyte in biosensors. However, its detection with conventional materials, such as noble metals or glassy carbon, is often hindered by slow kinetics and biofouling of the electrode. In this study electrochemical properties and suitability to peroxide detection as well as ability to resist biofouling of Pt-doped ta-C samples were evaluated. Pure ta-C and pure Pt were used as references. According to the results presented here it is proposed that combining ta-C with Pt results in good electrocatalytic activity towards H2O2 oxidation with better tolerance towards aqueous environment mimicking physiological conditions compared to pure Pt. In biofouling experiments, however, both the hybrid material and Pt were almost completely, blocked after immersion in protein-containing solutions and did not produce any peaks for ferrocenemethanol oxidation or reduction. On the contrary, it was still possible to obtain clearpeaks for H2O2 oxidation with them after similar treatment Moreover, quartz crystal microbalance experiment showed less protein adsorption on the hybrid sample compared to Pt which is also supported by the electrochemical biofouling experiments for H2O2 detection. (C) 2015 Elsevier B.V. All rights reserved.en
dc.description.versionPeer revieweden
dc.format.extent9
dc.format.extent70-78
dc.format.mimetypeapplication/pdf
dc.identifier.citationTujunen , N , Kaivosoja , E , Protopopova , V , Valle-Delgado , J J , Österberg , M , Koskinen , J & Laurila , T 2015 , ' Electrochemical detection of hydrogen peroxide on platinum-containing tetrahedral amorphous carbon sensors and evaluation of their biofouling properties ' , MATERIALS SCIENCE AND ENGINEERING C: MATERIALS FOR BIOLOGICAL APPLICATIONS , vol. 55 , pp. 70-78 . https://doi.org/10.1016/j.msec.2015.05.060en
dc.identifier.doi10.1016/j.msec.2015.05.060
dc.identifier.issn0928-4931
dc.identifier.issn1873-0191
dc.identifier.otherPURE UUID: 90d921f0-e6ee-4a75-9280-29acc4416448
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/90d921f0-e6ee-4a75-9280-29acc4416448
dc.identifier.otherPURE LINK: http://www.sciencedirect.com/science/article/pii/S0928493115301090
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/6736093/taC_Pt_manuscript_acris.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/22042
dc.identifier.urnURN:NBN:fi:aalto-201609163924
dc.language.isoenen
dc.relation.ispartofseriesMATERIALS SCIENCE AND ENGINEERING C: MATERIALS FOR BIOLOGICAL APPLICATIONSen
dc.relation.ispartofseriesVolume 55en
dc.rightsopenAccessen
dc.subject.keywordTetrahedral amorphous carbon
dc.subject.keywordPlatinum
dc.subject.keywordHydrogen peroxide
dc.subject.keywordSensor
dc.subject.keywordBiofouling
dc.titleElectrochemical detection of hydrogen peroxide on platinum-containing tetrahedral amorphous carbon sensors and evaluation of their biofouling propertiesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionacceptedVersion
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