Graphene quantum dots/β-cyclodextrin nanocomposites: A novel electrochemical chiral interface for tryptophan isomer recognition

被引：78
|
作者：
Ou, Jie [1 ]
Zhu, Yuhang [1 ]
Kong, Yong [1 ]
Ma, Jianfeng [1 ]
机构：
[1] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2015年 / 60卷
基金：
中国国家自然科学基金;
关键词：
Graphene quantum dots; beta-Cyclodextrin; Chiral interface; Tryptophan isomers; Electrochemical recognition; BETA-CYCLODEXTRIN; DOTS;
D O I：
10.1016/j.elecom.2015.08.005
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Graphene quantum dots (GQDs) were prepared by pyrolysis of citric acid, and then incorporated into beta-cyclodextrin (beta-CD) via H-bonds between the oxygen-containing groups on GQDs and the hydroxyl groups on beta-CD. The nanocomposites of GQDs and beta-CD (GQDs/beta-CD) were negatively charged due to the ionization of carboxyl groups of GQDs, and therefore they could be effectively electrodeposited onto a glassy carbon electrode (GCE). The electrodeposited GQDs/beta-CD were optically active due to the introduction of beta-CDs with well-defined hydrophobic central cavities, and it was employed as an electrochemical chiral interface for enantiorecognition of typtophan (Trp) isomers. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：60 / 63
页数：4
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