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Reference type: Conference Proceeding
Authors: Li TH, Wang D, Lan HZ, Gan N
Publication date: 2014
Article title: Determination of 17β-Estradiol Based on Electropolymerized-Molecularly Imprinted Polymer on Gold Nanoparticles-Graphene Modified Electrode.
Page numbers: 93-97
DOI: 10.4028/www.scientific.net/AMR.881-883.93 Alternative URL: http://www.scientific.net/AMR.881-883.93

Editors: Zeng JM, Li JH, Zhu HX
Publisher: Trans Tech Publications
City: Switzerland
Volume number: 881-883
Conference information: Chemical, Material and Metallurgical Engineering III

Abstract: An electrochemical sensor for estradiol was prepared by a molecularly imprinted polymer (MIP) film and its recognition properties for estradiol were investigated. The polypyrrole (PPy) film was prepared by electropolymerizing pyrrole on gold nanoparticles (Au NPs) and graphene (Gs) modified glassy carbon (GC) electrode. The electrochemical response of 17β-Estradiol (17β-E2) at the imprinted PPy-Gs-Au/GC electrode was investigated by cyclic voltammetry. The results indicated that the imprinted PPy-Gs-Au/GC electrode can effectively improve the electrochemical signal of 17β-E2 and eliminate interferences of other interfering substances. The results showed that a wide detection linear range (3.0 x 10-9 1.0 x 10-6 mol L-1) for the determination of 17β-E2 with the low detection limit of 1.0 x 10-9 mol L-1 (S/N = 3) was obtained. The proposed sensor exhibited fast balance response time of 10 min, which is propitious to rapid detect 17β-E2 in real samples. The merits of the imprinted electrode suggested an attractive and broadly applicable way for developing the chemical sensor used for the estrogen detection
Template and target information: 17β-Estradiol, 17β-E2, E2
Author keywords: electropolymerization, estradiol, molecularly imprinted polymer, polypyrrole


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