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Preparation of a novel mixed non-covalent and semi-covalent molecularly imprinted membrane with hierarchical pores for separation of genistein in Radix Puerariae Lobatae
Reactive & Functional Polymers ( IF 5.1 ) Pub Date : 2019-11-29 , DOI: 10.1016/j.reactfunctpolym.2019.104439
Jie-Ping Fan , Yu-Tong Cheng , Xue-Hong Zhang , Zhou-Peng Xiao , Dan-Dan Liao , Hui-Ping Chen , Kuan Huang , Hai-Long Peng

In this work, a novel mixed non-covalent and semi-covalent molecularly imprinted membrane (MIM) with hierarchical pores was prepared by cryopolymerization at −18 °C and using PEG2000 and dimethyl sulfoxide ice crystals as the pore templates. The free-standing MIM was characterized by scanning electron microscope and nitrogen adsorption-desorption isotherms, and the results confirmed the formation of the hierarchical pore structure. In the static adsorption, membrane permeation and dead-end filtration experiments, the results indicated that the mixed non-covalent and semi-covalent molecular imprinting was a good method to improve the performance of MIM which had a good adsorption selectivity toward genistein due to the presence of the imprinted sites in MIM and possessed strong imprinting efficiency toward genistein even in some similar compound mixture or extract of Radix Puerariae Lobatae.



中文翻译:

分离葛根中新型染料异黄酮的新型混合非共价和半共价分子印迹膜的制备

在这项工作中,通过在-18°C下冷冻聚合并使用PEG2000和二甲基亚砜冰晶作为孔模板,制备了具有分层孔的新型混合非共价和半共价分子印迹膜(MIM)。通过扫描电子显微镜和氮吸附-解吸等温线对独立式MIM进行了表征,结果证实了层状孔结构的形成。在静态吸附,膜渗透和死角过滤实验中,葛根。

更新日期:2019-11-29
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