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dc.contributor.authorShleev, Sergeyes_ES
dc.contributor.authorPita, Marcoses_ES
dc.contributor.authorYaropolov, Alexander I.es_ES
dc.contributor.authorRuzgas, Tautgirdases_ES
dc.contributor.authorGorton, Loes_ES
dc.date.accessioned2018-04-13T10:51:42Z-
dc.date.available2018-04-13T10:51:42Z-
dc.date.issued2006-10-
dc.identifier.citationElectroanalysis 18(19-20): 1901-1908 (2006)es_ES
dc.identifier.issn1040-0397-
dc.identifier.urihttp://hdl.handle.net/10261/163612-
dc.description.abstractDirect electron transfer reactions of high redox potential Trametes hirsuta laccase on bare and 15 different thiol‐modified gold electrodes were studied using cyclic voltammetry and potentiometry. Well‐pronounced Faradaic processes were obtained for the enzyme adsorbed on bare gold, whereas reproducible and stable electrochemistry was obtained only when 4‐aminothiophenol was used for gold modification. Moreover, the laccase‐4‐aminothiophenol‐modified gold electrode showed the highest value of the steady‐state potential under aerobic conditions equal to 660 mV vs. NHE compared with the other 15 different thiol modified electrodes and also the bare electrodes with immobilized enzyme. However, this value is still too far away from the equilibrium potential of the oxygen electrode and Trametes hirsuta laccase‐modified graphite electrode, for which a well‐pronounced high potential process of oxygen bioelectroreduction is shown at 800 mV vs. NHE. Possible mechanisms of the enzyme function on bare and thiol‐modified gold electrodes are discussed in correlation with the structure and orientation of the enzyme on the surface of the various electrodes.es_ES
dc.description.sponsorshipThe work was supported by the Swedish Research Council, the Swedish Institute (SI), the Consejería de Educación de la Comunidad de Madrid, and the European Social Funding (F. S. E.). The SI is acknowledged for the support of a postdoctoral fellowship for S. S.es_ES
dc.language.isoenges_ES
dc.publisherJohn Wiley & Sonses_ES
dc.relation.isversionofPostprint-
dc.rightsopenAccesses_ES
dc.subjectLaccasees_ES
dc.subjectT1, T2, and T3 siteses_ES
dc.subjectRedox potentiales_ES
dc.subjectGold electrodees_ES
dc.titleDirect Heterogeneous Electron Transfer Reactions of Trametes hirsuta Laccase at Bare and Thiol‐Modified Gold Electrodeses_ES
dc.typeartículoes_ES
dc.identifier.doihttp://dx.doi.org/10.1002/elan.200603600-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1002/elan.200603600es_ES
dc.identifier.e-issn1521-4109-
dc.contributor.funderSwedish Research Counciles_ES
dc.contributor.funderSwedish Institutees_ES
dc.contributor.funderComunidad de Madrides_ES
dc.contributor.funderEuropean Commissiones_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/100013443es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/100012818es_ES
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