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Reference type: Journal
Authors: Huang JD, Zhang XM, Lin Q, He XR, Xing XR, Huai HX, Lian WJ, Zhu H
Article Title: Electrochemical sensor based on imprinted sol-gel and nanomaterials for sensitive determination of bisphenol A.
Publication date: 2011
Journal: Food Control
Volume: 22
Issue: (5)
Page numbers: 786-791.
DOI: 10.1016/j.foodcont.2010.11.017
Alternative URL: http://www.sciencedirect.com/science/article/B6T6S-51H1DGD-8/2/c9f657f48707672f93044452dfc8e322

Abstract: Bisphenol A (BPA) was reported to show potential detrimental effects on wildlife and humans through altering endocrine function. In this study, a novel electrochemical imprinted sensor for sensitive and convenient determination of BPA was developed. Multi-walled carbon nanotubes (MWCNTs) and gold nanoparticles (GNPs) were introduced for the enhancement of electronic transmission and sensitivity. Thin film of molecularly imprinted sol-gel polymers with specific binding sites for BPA was cast on gold electrode by electrochemical deposition. The resulting composites were characterized by cyclic voltammetry (CV) and UV-visible spectra. Rebinding experiments were carried out to determine the specific binding capacity and selective recognition of the sensor. The linear range was from 1.13 x 10-7 to 8.21 x 10-3 mol L-1, with the limit of detection (LOD) of 3.6 x 10-9 mol L-1 (S/N = 3 ). The imprinted sensor was successfully tested to detect BPA in real samples
Template and target information: bisphenol A, BPA
Author keywords: Electrochemical sensor, Molecularly imprinted polymers, sol-gel, nanomaterials, Bisphenol a determination

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