Title:
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Interdigitated μ-electrodes for development of an impedimetric immunosensor for atrazine detection.
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Author:
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Valera Cano, Enrique Andrés; Ramón-Azcón, Javier; Sanchez, F. J.; Marco, M.P.; Rodríguez Martínez, Ángel; Castañer Muñoz, Luis María
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies |
Abstract:
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This contribution describes the development of an impedimetric immunosensor for atrazine detection. This
immunosensor is based on the use of interdigitated metallic
μ-electrodes (IDμEs) The method described in this work does not use any redox mediator and relies on the direct detection of
immunochemical competitive reaction between the pesticide and
a haptenized-protein immobilized on interdigitated
μ-electrodes for the specific antibody.
The immunoreagents used were specifically developed to detect atrazine. The immunochemical detection of this pesticide is achieved without using any label. The immunosensor shows a limit of detection of 8.34±1.37 μg L-1, witch is lower than the Maximun Residue Level (MRL) (50μg L-1)established by EU (European Union)for residues of atrazine as herbicide in the wine grapes and other foodstuff products. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria biomèdica::Electrònica biomèdica -Atrazine --Toxicity testing. -Herbicides -- Toxicologia -Sensors |
Rights:
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Document type:
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Article - Published version Conference Object |
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