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A strategy of improving the imprinting effect of molecularly imprinted polymer: Effect of heterogeneous macromolecule crowding
Jia, M (Jia, Man);   Yang, J (Yang, Jian);   Zhao, YX (Zhao, Yong-Xin);   Liu, ZS (Liu, Zhao-Sheng) ;   Aisa, HA (Aisa, Haji Akber); Liu, ZS; Aisa, HA
2017
发表期刊TALANTA
卷号175期号:12页码:488-494
摘要

The topic in the present work is to prepare molecularly imprinted polymer (MIP) in heterogeneous crowding surrounding for improving imprinting effect. For the first time, heterogeneous crowding surrounding was made up of a tetrahydrofuran (THF) solution of low molecular weight polyethene glycol (PEG) and high molecular weight polystyrene (PS). The MIP prepared in heterogeneous crowding surrounding against procyanidin B2 can display apparent imprinting effect (imprinting factor of 5.13) in the situation of difficult imprinting at single crowding surrounding or non-crowding surrounding. The necessity of simultaneous use of low and high molecular weight crowding agents for enhanced imprinting effect was further proved. NMR peak shifts of active hydrogen of procyanidin B2 strongly suggested that the interaction between functional monomer and template can be enhanced due to the effect of heterogeneous crowding in the self-assembly process. The influence of molecular weight and amount of PEG, molecular weight of PS, as well as the ratio of procyanidin B2 to functional monomer on the imprinting factor was investigated. The MIP was then used to extract purify procyanidin B2 from extract of grape seed. The recovery of procyanidin B2 obtained was 87% with relative standard deviation of less than 5%.

关键词Molecular Crowding Agent Molecularly Imprinted Polymer Procyanidin B2 Solid Phase Extraction Heterogeneous Crowding Environments Polyethylene Glycol
DOI10.1016/j.talanta.2017.07.075
收录类别SCI
WOS记录号WOS:000412033100065
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5003
专题资源化学研究室
通讯作者Liu, ZS; Aisa, HA
作者单位Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Xinjiang, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, State Key Lab Basis Xinjiang Indigenous Med Plant, Urumqi 830011, Peoples R China; Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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Jia, M ,Liu, ZS,Aisa, HA. A strategy of improving the imprinting effect of molecularly imprinted polymer: Effect of heterogeneous macromolecule crowding[J]. TALANTA,2017,175(12):488-494.
APA Jia, M ,Liu, ZS,&Aisa, HA.(2017).A strategy of improving the imprinting effect of molecularly imprinted polymer: Effect of heterogeneous macromolecule crowding.TALANTA,175(12),488-494.
MLA Jia, M ,et al."A strategy of improving the imprinting effect of molecularly imprinted polymer: Effect of heterogeneous macromolecule crowding".TALANTA 175.12(2017):488-494.
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