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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