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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:
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.
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页码:796 / 804
页数:9
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