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Fabrication of Chemiluminescence Sensor Based on Conducting Polymer@SiO2/Nafion Composite Film

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Abstract:

Tris(2,2′-bipyridyl)ruthenium (II) (Ru(bpy)2+3) electrogerated chemiluminescence (ECL) sensor was fabricated by immobilization of Ru(bpy)2+3 complex on conducting polymer@SiO2/Nafion composite film on surface of glassy carbon electrode. The conducting polymer@SiO2 nanocomposites were prepared by coating polyaniline (PANI), polypyrrole (PPy), and polythiophene (PTh) on the surface of the SiO2 sphere. The conducting polymer@SiO2 nanocomposite was characterized by scanning electron microscopy (SEM), Transmission electron microscopy (TEM), and atomic force microscopy (AFM). The sensitivity and reproducibility of the prepared ECL sensor to tripropylamine (TPA) was evaluated. As a result, the PPy@SiO2 composite electrode exhibited high sensitivity and good reproducibility compared to that obtained with PANI@SiO2 and PTh@SiO2 composite electrodes because of the strong interaction between PPy@SiO2 and Ru(bpy)2+3 complex.

Keywords: CHEMILUMINESCENCE; COMPOSITE FILM; CONDUCTING POLYMER COMMAT SIO2; RU(BPY)2+3

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.2976

Publication date: October 1, 2010

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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