山东科学 ›› 2024, Vol. 37 ›› Issue (6): 22-30.doi: 10.3976/j.issn.1002-4026.20240002

• 中药与天然活性产物 • 上一篇    下一篇

绿原酸分子印迹共价有机框架的制备及其识别性能研究

王尤胆1,2(), 纪文华2, 王晓1,2,*()   

  1. 1.云南中医药大学 中药学院,云南 昆明 650500
    2.齐鲁工业大学(山东省科学院) 山东省分析测试中心 山东省大型精密分析仪器应用技术重点实验室, 山东 济南 250014
  • 收稿日期:2024-01-04 出版日期:2024-12-20 发布日期:2024-12-05
  • 通信作者: *王晓(1971—),男,博士,研究员,研究方向为中药学。E-mail:wangx@sdas.org, Tel:13031748019
  • 作者简介:王尤胆(1999—),男,硕士研究生,研究方向为中药化学。E-mail:1759619312@qq.com
  • 基金资助:
    国家重点研发计划项目(2023YFC3503805);济南市“高校20条”项目(202228020);山东省泰山学者项目(tstp20221138)

Preparation and recognition property of molecularly imprinted covalent organic framework of chlorogenic acids

WANG Youdan1,2(), JI Wenhua2, WANG Xiao1,2,*()   

  1. 1. College of Traditional Chinese Medicine, Yunnan University of Traditional Chinese Medicine,Kunming 650500, China
    2. Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
  • Received:2024-01-04 Online:2024-12-20 Published:2024-12-05

摘要:

采用分子印迹技术,以绿原酸为模板分子,筛选醛/胺缩合反应单体制备了对绿原酸同骨架分子有较好选择识别性的分子印迹共价有机框架材料。等温吸附实验证明,与空白印迹共价有机框架材料相比,印迹共价有机框架对绿原酸的吸附效果更佳,具有更高的吸附容量。吸附动力学实验中,印迹共价有机框架能快速吸附绿原酸,15 min即能达到平衡吸附量的97.1%。选择性实验中,印迹共价有机框架对绿原酸同骨架分子均具有较好的吸附性能,对不同结构的化合物具有较差的选择识别性,而空白印迹共价有机框架则无此特性。研究结果表明,该分子印迹共价有机框架有作为高选择性材料在高极性环境中选择性分离富集绿原酸同骨架分子的潜能。

关键词: 分子印迹, 共价有机框架, 绿原酸, 识别性能

Abstract:

In this study, an imine-linked molecularly imprinted covalent organic framework (MCOF) was successfully prepared using chlorogenic acids as the template. Adsorption isotherm, adsorption kinetics, and selective recognition capacity were utilized to assess the performance of the MCOF and its non-imprinted counterpart, the covalent organic framework (NCOF). MCOF exhibited good site accessibility, taking 15 min to attain 97.1% of the maximum adsorbing capacity. Compared with the selective adsorption capacity of the NCOF to the analogs of chlorogenic acids, the MCOF showed higher selectivity to a family of related molecules with a structure similar to that of chlorogenic acids. This study shows that the MCOF provides an innovative opportunity to develop a highly selective material for the extraction and separation of a family of molecules from a high polarity medium.

Key words: molecularly imprinting, covalent organic framework, chlorogenic acids, recognition property

中图分类号: 

  • R284

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