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Reference type: Journal
Authors: Liu X, Zong HY, Huang YP, Liu ZS
Article Title: Liquid crystal-based molecularly imprinted nanoparticles with low crosslinking for capillary electrochromatography.
Publication date: 2013
Journal: Journal of Chromatography A
Volume: 1309
Page numbers: 84-89.
DOI: 10.1016/j.chroma.2013.08.024
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0021967313012557

Abstract: In this work, molecularly imprinted polymer (MIP) nanoparticles were prepared at a low level of crosslinking in the presence of liquid crystalline monomer as physical crosslinker to replace the most of chemical crosslinker. The imprinted nanoparticles against d-zopiclone were synthesized by precipitation polymerization using a mixture of methacrylic acid, ethylene glycol dimethacrylate, and liquid crystalline monomers. The resulting d-zopiclone imprinted nanoparticles were evaluated in capillary electrochromatography by partial filling technique. The resolution of enantiomer separation achieved on the d-zopiclone-imprinted nanoparticles was up to 3.29 and the column efficiency of zopiclone enantiomer (up to 66,900 plates/m) with good peak symmetry was obtained. The imprinted nanoparticles prepared in the presence of liquid crystalline monomer can retain affinity and specificity for template even when prepared with a level of cross-linker as low as 5%
Template and target information: d-zopiclone
Author keywords: molecularly imprinted polymer, Low crosslinking, Liquid crystal, nanoparticles, Zopiclone, Enantiomers separation

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