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dc.contributor.author
Paz Zanini, Veronica Irene  
dc.contributor.author
Linarez Pérez, Omar Ezequiel  
dc.contributor.author
Lopez Teijelo, Manuel  
dc.contributor.author
Labbé, Pierre  
dc.contributor.author
Lopez, Beatriz Alicia  
dc.contributor.author
Borsarelli, Claudio Darío  
dc.date.available
2018-11-22T17:57:37Z  
dc.date.issued
2017-01  
dc.identifier.citation
Paz Zanini, Veronica Irene; Linarez Pérez, Omar Ezequiel; Lopez Teijelo, Manuel; Labbé, Pierre; Lopez, Beatriz Alicia; et al.; Development of a bioelectrode fabricated with a multilayer thin film of poly(diallyldimethylammonium)/gold-nanoparticle/lactate oxidase for analysis of L-lactate in food samples; Elsevier Science Sa; Sensors and Actuators B: Chemical; 247; 1-2017; 830-839  
dc.identifier.issn
0925-4005  
dc.identifier.uri
http://hdl.handle.net/11336/64936  
dc.description.abstract
Multilayer films made of poly(diallyldimethylammonium) (PDDA), gold nanoparticles (AuNP) of 10 nm diameter and lactate oxidase (LOx), were built for the first time, by layer-by-layer (LBL) assembly technique onto both quartz and gold substrates. The surface plasmon resonance (SPR) band of AuNP was used for monitoring the film growth and adsorption kinetics on PDDA monolayer supported onto quartz substrate. In the case of polycrystalline gold surfaces, electrochemical characterization was performed by means of cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The latter system was used as bioelectrode for L-lactate quantification, showing a short time response (<10 s) with high sensitivity of 63 ± 3 μA mM−1cm−2, detection limit of 0.47 μM and linear range between 0.001 mM and 0.25 mM. This bioelectrode was also tested for L-lactate analysis in yogurt and fermented milk, and it was checked that typical interfering as glucose and citric, acetic and ascorbic acids do not play a role. Present results indicate that self-assembled multilayers made of PDDA/AuNP/LOx are suitable thin films for electroanalytical determination of L-lactate in real samples.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science Sa  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Cationic Polyelectrolyte  
dc.subject
Gold Nanoparticles  
dc.subject
Lactate Oxidase  
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Self-Assembled Multilayers  
dc.subject.classification
Otras Ciencias Químicas  
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Ciencias Químicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Development of a bioelectrode fabricated with a multilayer thin film of poly(diallyldimethylammonium)/gold-nanoparticle/lactate oxidase for analysis of L-lactate in food samples  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-10-23T20:38:20Z  
dc.journal.volume
247  
dc.journal.pagination
830-839  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Paz Zanini, Veronica Irene. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina  
dc.description.fil
Fil: Linarez Pérez, Omar Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina  
dc.description.fil
Fil: Lopez Teijelo, Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina  
dc.description.fil
Fil: Labbé, Pierre. Université Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia  
dc.description.fil
Fil: Lopez, Beatriz Alicia. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina  
dc.description.fil
Fil: Borsarelli, Claudio Darío. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina  
dc.journal.title
Sensors and Actuators B: Chemical  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400517305208  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.snb.2017.03.103