Work

Escherichia coli-functionalized magnetic nanobeads as an ultrasensitive biosensor for heavy metals

Year: 2009

Type: article

Abstract: The detection of traces of heavy metals in real environmental samples is a difficult task. In this work, we combined the advantages of nanobeads’ (NBs) properties with the simplicity of the layer-by-layer procedure, along with the use of micro-organisms as bioreceptors, for the elaboration of a novel electrochemical biosensor based on nanocomposite films. The whole cells (Escherichia. coli) K-12 used as bioreceptors were fixed onto a surface of indium-tin-oxide (ITO) glass with and without NBs and/or polyelectrolyte multilayers (PEM). Using the electrochemical impedance spectroscopy (EIS) technique, cadmium and mercury were detected.

Source: Procedia Chemistry

DOI: 10.1016/j.proche.2009.07.256

Authors: M. Souiri, I. Gammoudi, H. Ben Ouada, L. Mora, T. Jouenne, N. Jaffrezic-Renault, C. Dejous, A. Othmane, A.C. Duncan

Institutions: University of Monastir, Inserm, Université Sorbonne Paris Nord, Centre National de la Recherche Scientifique, Université de Rouen Normandie, Lyon 1 Université, Université de Bordeaux, Laboratoire de l'Intégration du Matériau au Système

Language: English

Topic: Electrochemical Analysis and Applications

Subfield: Electrochemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W2000894453

FWCI: 0.939

Cites: 6

Cited by: 32

Related to: 10