English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/9463
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 41 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Impedimetric immunosensor for atrazine detection using interdigitated μ-electrodes (IDμE's)

Autor Valera, Enrique; Ramón-Azcón, Javier; Rodríguez, Ángel; Castañer, Luis M.; Sánchez Baeza, Francisco J.; Marco, María Pilar
Palabras clave Immunosensor
Impedance spectroscopy
Interdigitated μ-electrodes
Atrazine
Fecha de publicación 3-mar-2007
EditorElsevier
Citación Sensors and Actuators B Chemical 125(2): 526-537 (2007)
ResumenA novel impedimetric immunosensor for atrazine detection, a widely used pesticide, is described. It is based on a two coplanar non-passivated interdigitated metallic μ-electrodes (IDμE) and the differential measurement of the impedance frequency spectrum. No redox electrodes have been included in the sensor. The chemical recognition layer was deposited on top of the interdigitated μ-electrodes area (fingers and inter-digits space). Immunochemical detection of the atrazine concentration is achieved by a competitive reaction without using any label. Furthermore immunoreagents specifically developed to detect this pesticide have been used.
The immunosensor and its functionalization steps have been characterized by means of chemical affinity methods and impedance spectroscopy. This work describes immunosensor development and its physico-chemical and analytical characterization. The immunosensor shows a limit of detection of 8.34 ± 1.37 μgL−1, which is lower than the Maximum Residue Level (MRL) (100 μgL−1) established by EU (European Union) for residues of atrazine as herbicide in the wine grapes and other foodstuff products.
Descripción 12 pages, 13 figures.-- Printed version published on Aug 8, 2007.
Versión del editorhttp://dx.doi.org/10.1016/j.snb.2007.02.048
URI http://hdl.handle.net/10261/9463
DOI10.1016/j.snb.2007.02.048
ISSN0925-4005
Aparece en las colecciones: (IQAC) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.