High frequency response of a novel biosensor based on interdigitated μ-electrodes (IDμE's)

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

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

Abstract

A novel impedimetric biosensor for detection of a wide variety of compounds has been designed and developed. The biosensor is based on a non-isolated surface and non-labelled immunoreactives. The chemical recognition layer was deposited on the surface of the inter digitated μ-electrodes (IDμE's) area (fingers and inter-digits space). Typically, the biosensors and their functionalization are characterized by chemical affinity methods, and impedance spectroscopy in frequencies ranges of 0.1 mHz to 100 kHz. This work describes the biosensor characterization to 1 MHz and the biosensor response without buffer solution to the pesticide atrazine. This work presents an alternative detection method using this biosensor, which was designed to be characterized in the range of frequencies usual in impedance spectroscopy. This detection method allows a simple measure, an easy interpretation and from the electronic point of view is very suitable.

Original languageEnglish
Title of host publication2007 Spanish Conference on Electron Devices, Proceedings
Pages193-196
Number of pages4
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 Spanish Conference on Electron Devices, SCED - Madrid, Spain
Duration: 2007 Jan 312007 Feb 2

Publication series

Name2007 Spanish Conference on Electron Devices, Proceedings

Other

Other2007 Spanish Conference on Electron Devices, SCED
Country/TerritorySpain
CityMadrid
Period07/1/3107/2/2

Keywords

  • Compounds detection
  • High frequency response
  • Impedimetric biosensor
  • Inter digitated μ-electrodes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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