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dc.contributor.authorValera Cano, Enrique Andrés
dc.contributor.authorRodríguez Martínez, Ángel
dc.contributor.authorAzcón, J.R.
dc.contributor.authorSánchez Baeza, Francisco J.
dc.contributor.authorMarco Colas, María Pilar
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.identifier.citationValera, E. [et al.]. Immunosensors for atrazine detection in red wine samples. A: International Conference on Biomedical Electronics and Devices. "Second International Conference on Biomedical Electronics and Devices". Porto: 2011, p. 226-230.
dc.description.abstractTwo novel immunosensors, one impedimetric and other one conductimetric, for atrazine detection in red wine samples have been developed. Impedimetric immunosensor is based on an array of interdigitated μ- electrodes (IDμEs) and bioreagents specifically developed to detect this pesticide. Conductimetric immunosensor incorporates additionally gold nanoparticles. Bioreagents were covalently immobilized on the surface of the electrodes (interdigital space). In both cases the biochemical determination of atrazine is possible without any redox mediator. For the case of the impedimetric immunosensor, the detection method is based on impedimetric measurements (in a wide range of frequencies), whereas in the case of the conductimetric immunosensor the detection method is based on conductimetric measurements (DC measurements).The potential of the impedimetric immunosensor to analyze atrazine in complex sample matrices, such as red wine, have been evaluated. This immunosensor can detect atrazine with limits of detection in the order sub-ppb, far below the maximum residue level (MRL) (50 μg L−1) established by European Union (EU) for residues of this herbicide in the wine grapes.
dc.format.extent5 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria agroalimentària::Agricultura::Viticultura
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química agrícola::Plaguicides
dc.subject.lcshAtrazine -- Detection
dc.subject.lcshInterdigitated μ-electrodes
dc.subject.lcshImpedance spectroscopy
dc.subject.lcshFood safety
dc.titleImmunosensors for atrazine detection in red wine samples
dc.typeConference report
dc.subject.lemacHerbicides -- Detecció
dc.subject.lemacVi i vinificació -- Anàlisi
dc.contributor.groupUniversitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorValera, E.; Rodriguez, A.; Azcón, J.; Sánchez, F.; Marco, M.P.
local.citation.contributorInternational Conference on Biomedical Electronics and Devices
local.citation.publicationNameSecond International Conference on Biomedical Electronics and Devices

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