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Reference type: Journal
Authors: Fourou H, Braiek M, Bonhomme A, Lagarde F, Zazoua A, Jaffrezic-Renault N
Article Title: Voltammetric Sensor Based on a Double-Layered Molecularly Imprinted Polymer for Testosterone.
Publication date: 2018
Journal: Analytical Letters
Volume: 51
Issue: (3)
Page numbers: 312-322.
DOI: 10.1080/00032719.2017.1298118
Alternative URL: https://www.researchgate.net/publication/317832914_Voltammetric_Sensor_Based_on_a_Double-Layered_Molecularly_Imprinted_Polymer_for_Testosterone

Abstract: A novel strategy to improve the sensitivity of molecularly imprinted polymer sensors based on a double-layered molecularly imprinted polymer hybrid film-modified gold electrode was investigated for the determination of testosterone. A conductive poly(anilinomethyltriethoxysilane) film was electrodeposited on the surface of the electrode, and a molecularly imprinted polysiloxane thin film was formed on the conductive layer by a sol-gel process to enhance the electrochemical response. The performance of the sensor for testosterone was investigated by square-wave voltammetry in the presence of a hexacyanoferrate/ferrite as a redox probe. The prepared sensor provided high recognition for testosterone with a broad linear range from 10 to 100 fM and a low detection limit of 10 fM. Good sensitivity, selectivity, and stability were observed with relative standard deviations less than 5%. Good recovery of testosterone was obtained when the sensor was used for the determination of testosterone in fortified urine
Template and target information: testosterone
Author keywords: Conductive polymer, double layered molecularly imprinted polymer, square-wave voltammetry, testosterone, voltammetric sensor


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