文献类型：期刊文献

英文题名：Facile Preparation of Hydrophilic Mesoporous Metal-Organic Framework via Synergistic Etching and Surface Functionalization for Glycopeptides Analysis

作者：Pu, Chenlu[1];Zhao, Hongli[1];Hong, Yayun[1];Zhan, Qiliang[1];Lan, Minbo[1]

机构：[1]East China Univ Sci & Technol, Shanghai, Peoples R China

年份：2020

卷号：92

期号：2

起止页码：1940

外文期刊名：ANALYTICAL CHEMISTRY

收录：;EI(收录号：20200808199717);WOS:【SCI-EXPANDED(收录号:WOS:000509420400040)】；

基金：The authors gratefully acknowledge the following financial support: the Science and Technology Commission of Shanghai Municipality (STCSM, Grant No. 16520710800) and the Fundamental Research Funds for the Central Universities (Grant No. 222201817022).

语种：英文

外文关键词：Crystalline materials - Mesoporous materials - Organometallics - Chemical stability - Hydrophilicity - Peptides

摘要：In view of the size and hydrophilicity of glycopeptides, materials having suitable channels (size-exclusion) and strong hydrophilic surface (hydrophilic interaction) are preferred to enrich the glycopeptides in biological samples. Metal-organic frameworks (MOFs) are good candidates. However, their smaller microporous channels and low chemical stability have limited the application. Herein, a facile strategy was established to construct hydrophilic mesoporous MOF via synergistic etching and surface functionalization by using phytic acid (PA). Besides, polyvinylpyrrolidone (PVP) was added during MOF synthesis to enhance the water stability of the MOF. Owing to the expanded hydrophilic mesoporous channels, the PA-modified Ce-MOF effectively and selectively captured 422 glycopeptides from 155 glycoproteins in tryptic digests of human serum (2 mu L). The present work sheds light on the easy fabrication of hydrophilic mesoporous materials, and this established material holds unique advantages for glycopeptides analysis in biological samples.