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Reference type: Journal
Authors: Li H, Li YZ, Li ZP, Peng XY, Li YN, Li G, Tan XZ, Chen GX
Article Title: Preparation and adsorption behavior of berberine hydrochloride imprinted polymers by using silica gel as sacrificed support material.
Publication date: 2012
Journal: Applied Surface Science
Volume: 258
Issue: (10)
Page numbers: 4314-4321.
DOI: 10.1016/j.apsusc.2011.12.104

Abstract: Preparation of berberine hydrochloride (B-Cl) imprinted polymers (MIPs) based on surface imprinting technique with silica gel as sacrificial support material was performed successfully by using B-Cl as template, methacrylic acid (MAA) and ethylene glycol dimethacrylate (EGDMA) as functional monomer and cross-linker, respectively. The prepared polymers were characterized by Fourier transmission infrared spectrometry (FTIR) and scanning electron microscopy (SEM). Adsorption behavior of the MIPs for the template and its structural analogues was investigated. Sites distribution on the surface of MIPs was explored by using different isotherm adsorption models and thermodynamic parameters for the adsorption of B-Cl on the MIPs determined. Sample application and reusability for the MIPs was also evaluated. Results indicated the strong adsorption and high selectivity of the MIPs for B-Cl. Saturated adsorption capacity reached 27.2 μmol g-1 and the selectivity coefficient of the MIPs for B-Cl relative to jatrorrhizine hydrochloride (J-Cl) and palmatine palmatus hydrochloride (P-Cl) are 3.70 and 6.03, respectively. In addition, the MIPs were shown with good reusability and selectively retention ability in sample application
Template and target information: berberine hydrochloride, B-Cl
Author keywords: molecular imprinted polymer, Surface imprinting technique, Berberine hydrochloride, silica gel


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