文献类型：期刊文献

英文题名：Synthesis of chiral cyclodextrin metal-organic framework modified with platinum on glassy carbon electrodes: Electrochemical chiral recognition of methionine enantiomers

作者：Sun, Xuezhi[1];Lin, Chuhui[1];Ning, Fanghong[2,6];Zhang, Min[3];Fu, Hua[4];Zhang, Hongyang[1];Hu, Ping[1,5]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Biotechnol, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Pharm, China Shanghai Key Lab New Drug Design, Shanghai 200237, Peoples R China;[4]Qinghai Univ, Sch Chem Engn, Xining 810016, Peoples R China;[5]East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[6]East China Univ Sci & Technol, Sch Biotechnol, Shanghai 200237, Peoples R China

年份：2023

卷号：35

期号：5

外文期刊名：ELECTROANALYSIS

收录：;EI(收录号：20231713996778);WOS:【SCI-EXPANDED(收录号:WOS:000919774700001)】；

语种：英文

外文关键词：chiral electrochemical sensor; cross-linked cyclodextrin MOF; methionine; platinum

摘要：A platinum nanoparticle-modified chiral cross-linked cyclodextrin MOF (Pt-CLMOF) was synthesized. Then, a chiral electrochemical sensor was constructed using the Pt-CLMOF nanomaterials for the recognition of methionine (Met) enantiomers and the chiral recognition mechanism was revealed by density functional theory calculations. The recognition effect of Pt-CLMOF modified electrode (Pt-CLMOF/GCE) on Met was studied by differential pulse voltammetry. The enantioselectivity coefficient (IL/ID) was 1.98. There is an acceptable linear relationship between peak current and Met enantiomer concentration in the 2-200 mu M range, the detection limits of L-Met and D-Met were 0.33 and 0.60 mu M which were obtained by this electrochemical sensor, respectively. The synthesized materials were successfully applied to the analysis of Met enantiomers, indicating that Pt-CLMOF materials have good application potentiality.