文章基本信息

标题：A MESOPOROUS MOLECULARLY IMPRINTED INVERSE OPAL SENSOR WITH HIGH SELECTIVITY FOR FLUOROQUINOLONES
本地全文：下载
作者：Jian-Wen Wang ; Yi-Min Kuo
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2021
卷号：30
期号：6
页码：7688-7699
语种：English
出版社：PSP Publishing
摘要：In this study, the selective dual template (CIP-NOR)molecularly imprinted polymers(DT-MIPs)based on MCM-41 (MCM-41-DT-MIPs)for the selective determination of the Fluoroquinolones (FQs) were developed. The polymers were synthesized by photochemical reaction with the MAA as functional monomer and ethylene glycol dimethacrylate(EGDMA) as cross-linker. The surface morphologies, specific surface area, molecular adsorption capacity and recognitive ability of the imprinted and non-imprinted polymers were examined. Molecular adsorption capacity result shows that the MCM-41-DT-MIPs result in ahigher adsorption capacity than the DT-MIPs due to its mesoporous structure. Inverse opal films of MCM-41-DT-MIPs (MIOM) were elaborated by combining the Langmuir-Blodgett technique and the photonic crystal template method. The inverse opal films consists of a highly ordered and interconnected macroporous array with a thin wall, where nanocavities complementary to analytes in shape and binding sites are distributed. The response of MIOM to FQs stimulants in aqueous solution is detected through a readable Bragg diffraction red-shift, which is due to the lattice change of inverse opal films structures responding to their rebinding to the target FQs molecules.The MCM-41-DT-MIPs inverse opal sensor exhibited high sensitivity and specificity for sensing of FOs in aqueous media and could be a promising way to current methods of online monitoring of FQs levels.
关键词：MIPs;photochemical reaction;Fluoroquinolones;recog-nition;inverse opal