Interdigitated μ-electrodes for development of an impedimetric immunosensor for atrazine detection.
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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.
CitacióValera, E. [et al.]. Interdigitated μ-electrodes for development of an impedimetric immunosensor for atrazine detection.. A: Conference on Electron Devices. "7th Spanish Conference on Electron Devices (CDE 2009)". Santiago de Compostela: 2009, p. 278-280.
Versió de l'editorhttp://www.ac.usc.es/cde09/