Ultrasensitive visual detection of Hg2+ ions via the Tyndall effect of gold nanoparticles

被引：36

作者：

Deng, Zihao ^{[1
]}

Jin, Wenying ^{[1
]}

Yin, Qiaobo ^{[2
]}

Huang, Jinkun ^{[1
]}

Huang, Ziheng ^{[1
]}

Fu, Haiyan ^{[2
]}

Yuan, Yali ^{[1
]}

Zou, Jianmei ^{[1
]}

Nie, Jinfang ^{[1
]}

Zhang, Yun ^{[1
]}

机构：

[1] Guilin Univ Technol, Guangxi Key Lab Electrochem & Magnetochem Funct M, Guangxi Key Lab Environm Pollut Control Theory &, 12 Jiangan Rd, Guilin 541004, Peoples R China

[2] South Cent Univ Nationalities, Modernizat Engn Technol Res Ctr Ethn Minor Med Hu, Sch Pharmaceut Sci, Wuhan 430074, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2021年 / 57卷 / 21期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1039/d0cc08003a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This work reports a new methodology for naked-eye nanosensing of Hg2+ where the Tyndall effect of gold nanoparticles (GNPs) acts as a light scattering signalling readout. Its utility is demonstrated with ultrasensitive detection of the target with a limit down to 0.13 nM (similar to 5461-fold sensitivity improvement over conventional GNP-based methods with surface plasmon resonance signalling).

引用

页码：2613 / 2616

页数：4

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