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Reference type: Journal
Authors: Niu QY, Gao BJ, Liu SY, Sun ZJ
Article Title: Preparation of Matrine-Imprinted Material Using Novel Surface-Molecular Imprinting Method and Its Molecule Recognition Character.
Publication date: 2010
Journal: Acta Chimica Sinica
Volume: 68
Issue: (24)
Page numbers: 2600-2608.
Alternative URL: http://sioc-journal.cn/Jwk_hxxb/EN/abstract/abstract339636.shtml

Abstract: Polymethylacrylic acid (PMAA) was grafted onto the surface of silica gel particles via the coupling effect of 3-methacryloxypropyl trimethoxysilane (MPS), and the grafting particle PMAA/SiO2 was prepared. Then, the molecular imprinting towards the grafted PMAA was performed with alkaloid matrine which is originated from sophora alopecuroides linn as template molecule and ethylene glycol diglycidyl ether (EGDE) as crosslinking agent by using the novel surface-molecular imprinting technique established by our research group, and the matrine molecule-imprinted material MIP-PMAA/SiO2 was prepared. With another alkaloid, cytisine which is also contained in sophora alopecuroides linn, as a contrast compound, both static and dynamic methods were adopted to study the binding properties and molecule recognition character of MIP-PMAA/SiO2 for matrine. The experiment results show that MIP-PMAA/SiO2 have specific recognition selectivity and excellent binding affinity for matrine. Besides, MIP-PMAA/SiO2 has excellent elution property, with a acetic acid solution containing NaCl as the eluent, the desorption ratios of matrine reach 99.77% in 17 BV
Template and target information: matrine
Author keywords: polymethylacrylic acid, silica gel, molecular imprinting, surface imprinting, matrine, Molecule recognition

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