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Reference type: Journal
Authors: Xu WZ, Wang YC, Huang WH, Yu L, Yang YF, Liu H, Yang WM
Article Title: Computer-aided design and synthesis of CdTe@SiO2 core-shell molecularly imprinted polymers as a fluorescent sensor for the selective determination of sulfamethoxazole in milk and lake water.
Publication date: 2017
Journal: Journal of Separation Science
Volume: 40
Issue: (5)
Page numbers: 1091-1098.
DOI: 10.1002/jssc.201601180

Abstract: In this work, a molecular dynamics simulation method was introduced to compute the preassembled system of molecular imprinted polymers for sulfamethoxazole monomer. The results revealed that the ratio of sulfamethoxazole as template molecule to 3-aminopropyltriethoxysilane as functional monomer to tetraethylorthosilicate as cross-linker of 10:10:40 led to the most stable template-functional monomer cluster. Based on the result of computational simulation, CdTe@SiO2 core-shell imprinted polymers, a cadmium telluride quantum dots layer on the surface of aminofunctionalized SiO2, were synthesized as the fluorescent sensor. Then, a series of measures were used to characterize the structure and morphology to get optimal sensors. The concentration range was 5.0-30.0 μmol/L between molecular imprinted polymers at CdTe at SiO2, and sulfamethoxazole of the fluorescence intensity. To further verify the reliability and accuracy of the fluorescent sensor, the application was successfully by analyzing sulfamethoxazole in pure milk and lake water. The results showed the recoveries were above 96.89% with a relative standard deviation of 1.25-5.45%, and the fluorescence sensor with selective recognition provides an alternative solution for the determination of sulfamethoxazole
Template and target information: sulfamethazole
Author keywords: computer design, CdTe Quantum dots, Fluorescent sensors, magnetic nanomaterials, Molecularly imprinted polymers

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