Interdigitated μ-electrodes for development of an impedimetric immunosensor for atrazine detection

Enrique Valera, Javier Ramón-Azcón, F. J. Sanchez, M. P. Marco, Angel Rodríguez, Luis M. Castañer

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This contribution describes the development of an impedimetric immunosensor for atrazine detection. This immunosensor is based on the use of interdigitated metallic p-electrodes (IDμEs). The method described in this work does not use any redox mediator and relies on the direct detection of the immunochemical competitive reaction between the pesticide and a haptenized-protein immobilized on interdigitated p-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 pg L-1, which is lower than the Maximum Residue Level (MRL) (50 μg L-1) established by EU (European Union) for residues of atrazine as herbicide in the wine grapes and other foodstuff products.

    Original languageEnglish
    Title of host publicationProceedings of the 2009 Spanish Conference on Electron Devices, CDE'09
    Pages278-280
    Number of pages3
    DOIs
    Publication statusPublished - 2009
    Event2009 Spanish Conference on Electron Devices, CDE'09 - Santiago de Compostela, Spain
    Duration: 2009 Feb 112009 Feb 13

    Publication series

    NameProceedings of the 2009 Spanish Conference on Electron Devices, CDE'09

    Other

    Other2009 Spanish Conference on Electron Devices, CDE'09
    Country/TerritorySpain
    CitySantiago de Compostela
    Period09/2/1109/2/13

    ASJC Scopus subject areas

    • Computational Theory and Mathematics
    • Hardware and Architecture
    • Electrical and Electronic Engineering

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