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
Externally publishedYes
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
CountrySpain
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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    Valera, E., Ramón-Azcón, J., Sanchez, F. J., Marco, M. P., Rodríguez, A., & Castañer, L. M. (2009). Interdigitated μ-electrodes for development of an impedimetric immunosensor for atrazine detection. In Proceedings of the 2009 Spanish Conference on Electron Devices, CDE'09 (pp. 278-280). [4800485] (Proceedings of the 2009 Spanish Conference on Electron Devices, CDE'09). https://doi.org/10.1109/SCED.2009.4800485