Please use this identifier to cite or link to this item:

TitleKinetics of direct and substrate-mediated electron transfer of versatile peroxidase-modified graphite electrodes
Author(s)Munteanu, Florentina-Daniela
Ruiz-Duenas, Francisco J.
T. Martinez, Angel
Paulo, Artur Cavaco
Versatile peroxidase
Graphite electrode
Heterogeneous electron transfer
Issue date2005
JournalJournal of electroanalytical chemistry
Citation"Journal of electroanalytical chemistry". ISSN 0022-0728. 580:1 (June 2005) 35-40.
Abstract(s)Electron transfer (ET) of versatile peroxidase (VP) was studied in the bioelectrocatalytic reduction reaction of H2O2 at peroxidase- modified graphite electrodes to obtain additional information on the kinetic characteristics of this novel ligninolytic peroxidase. Rotating disk electrodes (RDE) experiments were performed at 0 V (vs. SCE) in two different buffers (tartrate buffer, pH 5.0; and citrate buffer, pH 3.0). From measurements of the mediated and mediatorless currents of H2O2 reduction at the RDE, the percentage of VP molecules involved in direct ET (≈55%) was calculated. The peroxidase-modified electrodes were used for determination of the donor substrates in RDE mode, and the results were interpreted in terms of catalytic efficiencies.
AccessOpen access
Appears in Collections:DET/2C2T - Artigos em revistas internacionais com arbitragem científica

Files in This Item:
File Description SizeFormat 
73[1].pdf158,62 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID