Analyte-triggered autocatalytic amplification combined with gold nanoparticle probes for colorimetric detection of heavy-metal ions

被引：66
|
作者：
Yang, Juanhua [1 ]
Zhang, Yun [1 ]
Zhang, Lang [1 ]
Wang, Huili [1 ]
Nie, Jinfang [1 ]
Qin, Zhongxiang [1 ]
Li, Jiao [1 ]
Xiao, Wencheng [1 ]
机构：
[1] Guilin Univ Technol, Collaborat Innovat Ctr Water Pollut Control & Wat, Coll Chem & Bioengn, Guangxi Key Lab Electrochem & Magnetochem Funct M, 12 Jiangan Rd, Guilin 541004, Peoples R China
来源：
CHEMICAL COMMUNICATIONS | 2017年 / 53卷 / 54期
基金：
中国国家自然科学基金;
关键词：
MERCURY(II) IONS; COPPER IONS; FLUORESCENCE; SILVER; HG2+; AG+; METHYLMERCURY; SPECTROMETRY; NANOCLUSTERS; SENSITIVITY;
D O I：
10.1039/c7cc02198d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This work reports a new colorimetric nanosensor for the detection of heavy-metal ions that initially integrates analyte-triggered autocatalytic amplification with o-phenylenediamine-mediated aggregation of label-free gold nanoparticles. Its utility is well demonstrated with the simple, rapid, sensitive, and specific detection of Hg2+, Cu2+, and Ag+ targets with detection limits less than 3 nM.
引用
收藏
页码：7477 / 7480
页数：4
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