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

Authors: Jung, Da-Jung; Piao, Ming-Hua; Oh, Sang-Hyub; Woo, Jin-Chun; Choi, Seong-Ho

Source: Journal of Nanoscience and Nanotechnology, Volume 10, Number 10, October 2010 , pp. 6855-6858(4)

Publisher: American Scientific Publishers

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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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