Cysteamine-capped copper nanoclusters as a highly selective turn-on fluorescent assay for the detection of aluminum ions

被引：51

作者：

Boonmee, Chanida ^{[1
,2
]}

Promarak, Vinich ^{[3
]}

Tuntulani, Thawatchai ^{[4
]}

Ngeontae, Wittaya ^{[1
,2
]}

机构：

[1] Khon Kaen Univ, Dept Chem, Mat Chem Res Ctr, Khon Kaen 40002, Thailand

[2] Khon Kaen Univ, Ctr Excellence Innovat Chem, Fac Sci, Khon Kaen 40002, Thailand

[3] Vidyasirimedhi Inst Sci & Technol, Sch Mol Sci & Engn, Wang Chan 21210, Rayong, Thailand

[4] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand

来源：

TALANTA | 2018年 / 178卷

关键词：

Copper nanoclusters; Chemical sensor; Fluorescent sensor; Metal nanoclusters; Nanoparticles; Optical nanomaterials; AGGREGATION-INDUCED EMISSION; ONE-STEP SYNTHESIS; QUANTUM DOTS; CU NANOCLUSTERS; PROBE; SENSOR; CHEMOSENSOR; SIZE; AL3+; AG+;

D O I：

10.1016/j.talanta.2017.10.006

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new type of copper nanoclusters was synthesized by a one-pot reaction using cysteamine as a capping agent and reducing agent (Cys-CuNCs). The synthesized CuNCs exhibited a spherical shape and a monodisperse and strong fluorescent emission characteristic peak at 430 nm when exciting at 330 nm. The Cys-CuNCs were demonstrated as a fluorescent chemodosimeter for the selective detection of Al3+ In the presence of Al3+, the fluorescent emission of the Cys-CuNCs was considerably enhanced, while other studied metal ions did not show this phenomenon. The fluorescent intensity near 380 nm linearly increased with an increasing Al3+ concentration. The proposed method provided a working range of 1-7 mu M with a low detection limit of 26.7 nM and was applied to determine Al3+ in drinking water samples with satisfactory results.

引用

页码：796 / 804

页数：9

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