The influence of the shape of Au nanoparticles on the catalyticcurrent of fructose dehydrogenase
dc.contributor.author | Bollella, Paolo | |
dc.contributor.author | Hibino, Yuya | |
dc.contributor.author | Conejo Valverde, Paolo | |
dc.contributor.author | Soto Cruz, Jackeline | |
dc.contributor.author | Bergueiro, Julián | |
dc.contributor.author | Calderón, Marcelo | |
dc.contributor.author | Rojas Carrillo, Oscar | |
dc.contributor.author | Kano, Kenji | |
dc.contributor.author | Gorton, Lo | |
dc.date.accessioned | 2020-02-27T09:48:28Z | |
dc.date.available | 2020-02-27T09:48:28Z | |
dc.date.issued | 2019-11 | |
dc.identifier.citation | Analytical and Bioanalytical Chemistry 411(29) : 7645-7657 (2019) | es_ES |
dc.identifier.issn | 1618-2642 | |
dc.identifier.issn | 1618-2650 | |
dc.identifier.uri | http://hdl.handle.net/10810/41492 | |
dc.description.abstract | Graphite electrodes were modified with triangular (AuNTrs) or spherical (AuNPs) nanoparticles and further modified with fructose dehydrogenase (FDH). The present study reports the effect of the shape of these nanoparticles (NPs) on the catalytic current of immobilized FDH pointing out the different contributions on the mass transfer-limited and kinetically limited currents. The influence of the shape of the NPs on the mass transfer-limited and the kinetically limited current has been proved by using two different methods: a rotating disk electrode (RDE) and an electrode mounted in a wall jet flow-through electrochemical cell attached to a flow system. The advantages of using the wall jet flow system compared with the RDE system for kinetic investigations are as follows: no need to account for substrate consumption, especially in the case of desorption of enzyme, and studies of product-inhibited enzymes. The comparison reveals that virtually identical results can be obtained using either of the two techniques. The heterogeneous electron transfer (ET) rate constants (k(S)) were found to be 3.8 +/- 0.3 s(-1) and 0.9 +/- 0.1 s(-1), for triangular and spherical NPs, respectively. The improvement observed for the electrode modified with AuNTrs suggests a more effective enzyme-NP interaction, which can allocate a higher number of enzyme molecules on the electrode surface | es_ES |
dc.description.sponsorship | This study received financial funding from the Swedish Research Council (Vetenskapsradet project 2014-5908), the European Commission (project "Bioenergy" FP7-PEOPLE-2013-ITN-607793), and a scholarship of the Erasmus+ Project Unipharma-Graduates, promoted by a Consortium of Italian Universities and coordinated by Sapienza University of Rome. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/607793 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | fructose dehydrogenase (FDH) | es_ES |
dc.subject | gold nanotriangles (AuNTrs) | es_ES |
dc.subject | gold nanoparticles (AuNPs) | es_ES |
dc.subject | nanoparticle shape | es_ES |
dc.subject | direct electron transfer (DET) | es_ES |
dc.subject | direct electron-transfer | es_ES |
dc.subject | wall-jet electrode | es_ES |
dc.subject | gold nanoparticles | es_ES |
dc.subject | cellobiose dehydrogenase | es_ES |
dc.subject | horseradish-peroxidase | es_ES |
dc.subject | amperometric biosensor | es_ES |
dc.subject | paste biosensor | es_ES |
dc.subject | rotating-disk | es_ES |
dc.subject | size | es_ES |
dc.subject | membrane | es_ES |
dc.title | The influence of the shape of Au nanoparticles on the catalyticcurrent of fructose dehydrogenase | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This article is distributed under the terms of the CreativeCommons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use,distribution, and reproductionin any medium, provided you giveappropriate credit to the original author(s) and the source, provide a linkto the Creative Commons license, and indicate if changes were made. | es_ES |
dc.rights.holder | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.relation.publisherversion | https://link.springer.com/article/10.1007%2Fs00216-019-01944-6 | es_ES |
dc.identifier.doi | 10.1007/s00216-019-01944-6 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Química analítica | es_ES |
dc.departamentoeu | Kimika aplikatua | es_ES |
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