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Citation: CAO Linjiao, GAO Baojiao, HU Weimin. Design and Preparation of Alkaloid Surface-Imprinted Material and Its Molecular Recognition Characteristics[J]. Chinese Journal of Applied Chemistry, ;2014, 31(12): 1390-1398. doi: 10.3724/SP.J.1095.2014.40070 shu

Design and Preparation of Alkaloid Surface-Imprinted Material and Its Molecular Recognition Characteristics

1.
Department of Chemical Engineering, North University of China, Taiyuan 030051, China

Corresponding author: GAO Baojiao,
Received Date: 10 March 2014
Available Online: 5 May 2014
Fund Project: 山西省青年基金资助项目(2013021009-1) (2013021009-1)

The surface-initiated graft-polymerization of glycidyl methacrylate(GMA) on micron-sized silica gel particles was first conducted with a surface-initiating system of thiol group/azodiisobutyronitrile(AIBN) to obtain PGMA-grafted SiO₂ particles.Sulfonate groups were bonded onto the side chains of PGMA by ringopening reaction between the epoxy groups of PGMA and sodium 2,4-diaminobenzene sulfonate(SAS),resulting in the formation of SAS-PGMA/SiO₂ particles.The interaction between SAS-PGMA/SiO₂ and matrine was examined.Surface-imprinting of the matrine molecule was performed with glutaraldehyde as the crosslinking agent to yield the matrine molecule surface-imprinted material MIP-SASP/SiO₂.The experiment results show that in the nearly neutral solution,there is strong host-guest interaction between the functional grafted particles SAS-PGMA/SiO₂ and matrine.The surface-imprinted MIP-SASP/SiO₂ particles,have specific recognition selectivity and excellent binding affinity for matrine.Relative to the cytosine control,the coefficient of recognition selectivity of the imprinted material MIP-SASP/SiO₂ for matrine reaches 10.7.
- poly(glycidyl methacrylate),
- silica gel,
- molecular surface-imprinting,
- matrine,
- molecular recognition
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