Self-Assembling of Redox-Active Atrazine Poly(ethylenimine) Conjugates - Interfacial Electrochemical and Spectroscopic Characterization

Thin films of polymers tethered with both atrazine haptens and ferrocenyl (Fc) probes were formed on polycrystalline gold electrodes by taking advantage of the facile formation of self‐assembled monolayers (SAMs) of thiolates. These films were characterized by polarization modulation Fourier transfo...

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2006-04, Vol.18 (7), p.684-694
Main Authors: Chen, Zhaohui, Salmain, Michèle, Pradier, Claire-Marie, Fischer-Durand, Nathalie, Pailleret, Alain, Bedioui, Fethi, Zanna, Sandrine
Format: Article
Language:English
Subjects:
Atrazine
Chemical Sciences
Cyclic voltammetry
Ferrocene
Gold electrode
Life Sciences
Pharmaceutical sciences
SAM
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Summary:Thin films of polymers tethered with both atrazine haptens and ferrocenyl (Fc) probes were formed on polycrystalline gold electrodes by taking advantage of the facile formation of self‐assembled monolayers (SAMs) of thiolates. These films were characterized by polarization modulation Fourier transform infrared reflection–absorption spectrometry (PM‐IRRAS), X‐ray photoelectron spectroscopy (XPS) and cyclic voltammetry. The combination of these techniques gave a full insight into the structure and the binding mode of the polymers and provided useful quantitative information about both Fc entity and atrazine hapten surface density. This may open the way to a new type of immunosensor for atrazine monitoring.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.200503451