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

页码：3067 / 3075

页数：9

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