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Reference type: Journal
Authors: Gu XH, Xu R, Yuan GL, Lu H, Gu BiR, Xie HP
Article Title: Preparation of chlorogenic acid surface-imprinted magnetic nanoparticles and their usage in separation of Traditional Chinese Medicine.
Publication date: 2010
Journal: Analytica Chimica Acta
Volume: 675
Issue: (1)
Page numbers: 64-70.
DOI: 10.1016/j.aca.2010.06.033
Alternative URL: http://www.sciencedirect.com/science/article/B6TF4-50GMMHM-1/2/8511c111587ec1801851a8945f35c12a

Abstract: The chlorogenic acid (CGA) surface-imprinted magnetic polymer nanoparticles have been prepared via water-in-oil-in-water multiple emulsions suspension polymerization. This kind of molecularly imprinted polymer nanoparticles (MIPs) had the core-shell structure with the size of about 50 nm. Magnetic susceptibility was given by the successful encapsulation of Fe3O4 nanoparticles with a high encapsulation efficiency of 19.3 wt%. MIPs showed an excellent recognition and selection properties for the imprinted molecule CGA. The recognition capacity of MIPs was near three times than that of non-imprinted polymer nanoparticles (NIPs). Compared with the competitive molecule caffeic acid (CFA), the selectivity of MIPs for CGA was 6.06 times as high as that of NIPs. MIPs could be reused and regenerated, and their rebinding amount in the fifth use was up to 78.85% of that in the first use. The MIPs prepared were successfully applied to the separation of CGA from the extract of Traditional Chinese Medicine Honeysuckle
Template and target information: chlorogenic acid, CGA
Author keywords: chlorogenic acid, surface imprinting, Magnetic susceptibility, separation

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