A novel dual-emission fluorescent probe for ratiometric and visual detection of Cu2+ ions and Ag+ ions

被引：10
|
作者：
Wu, Jiang [1 ]
Li, Runyang [1 ]
Liu, Siyu [1 ]
机构：
[1] Northeastern Univ, Coll Life & Hlth Sci, Shenyang 110000, Peoples R China
来源：
ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2022年 / 414卷 / 09期
关键词：
Carbon dots; Gold nanoclusters; Ratiometric; Cu2+; Ag+; SENSITIVE DETECTION; GOLD NANOCLUSTERS; SILVER; NANOPARTICLE; COPPER; SENSOR; HG2+;
D O I：
10.1007/s00216-022-03930-x
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
In this work, the biomolecule glutathione was used to prepare cyan fluorescent carbon dots (GSH@CDs) by a hydrothermal method. The GSH@CDs were adopted as the scaffolds to synthesize fluorescent gold nanoclusters (GSH@CDs-Au NCs) with two independent emission peaks at 430 nm and 700 nm. A fluorescent method for the Cu2+ and Ag+ ion assay was established based on the fluorescence quenching or enhancement at 700 nm of GSH@CDs-Au NCs. The fluorescent test strips were successfully prepared for visual detection of Cu2+ ions and Ag+ ions based on GSH@CDs-Au NCs. In addition, GSH@CDs-Au NCs were found to possess well peroxidase-like activity.
引用
收藏
页码：3067 / 3075
页数：9
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