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  • Title: Synthesis of a temperature-sensitive matrine-imprinted polymer and its potential application for the selective extraction of matrine from radix Sophorae tonkinensis.
    Author: Jiang M, Wang L, Liu X, Yang H, Ren F, Gan L, Jiang W.
    Journal: Int J Mol Sci; 2015 Feb 04; 16(2):3441-51. PubMed ID: 25658797.
    Abstract:
    A temperature-sensitive matrine-imprinted polymer was prepared in chloroform by free-radical cross-linking copolymerization of methacrylic acid at 60 °C in the presence of ethylene glycol dimethacrylate as the cross-linker, N-isopropyl acrylamide as the temperature-responsive monomer and matrine as the template molecule. Binding experiments and Scatchard analyses revealed that two classes of binding sites were formed on molecular imprinted polymer (MIP) at 50 °C. Additionally, the thermoresponsive MIP was tested for its application as a sorbent material for the selective separation of matrine from Chinese medicinal plant radix Sophorae tonkinensis. It was shown that the thermoresponsive MIP displayed different efficiency in clean-up and enrichments using the SPE protocol at different temperatures.
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