Luminescent turn-on detection of Hg(II) via the quenching of an iridium(III) complex by Hg(II)-mediated silver nanoparticles

被引：25

作者：

Liu, Jinshui ^{[1
]}

Vellaisamy, Kasipandi ^{[1
]}

Yang, Guanjun ^{[2
]}

Leung, Chung-Hang ^{[2
]}

Ma, Dik-Lung ^{[1
]}

机构：

[1] Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China

[2] Univ Macau, Inst Chinese Med Sci, State Key Lab Qual Res Chinese Med, Macau, Peoples R China

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

基金：

中国国家自然科学基金;

关键词：

RESONANCE ENERGY-TRANSFER; FREE FLUORESCENT-PROBE; GRAPHENE QUANTUM DOTS; LABEL-FREE; COLORIMETRIC DETECTION; SENSITIVE DETECTION; SELECTIVE DETECTION; GOLD NANOPARTICLES; AQUEOUS-MEDIA; MERCURY II;

D O I：

10.1038/s41598-017-03952-x

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A novel luminescent turn-on detection method for Hg(II) was developed. The method was based on the silver nanoparticle (AgNP)-mediated quenching of Ir(III) complex 1. The addition of Hg(II) ions causes the luminescence of complex 1 to be recovered due to the oxidation of AgNPs by Hg(II) ions to form Ag(I) and Ag/Hg amalgam. The luminescence intensity of 1 increased in accord with an increased Hg(II) concentration ranging from 0 nM to 180 nM, with the detection limit of 5 nM. This approach offers an innovative method for the quantification of Hg(II).

引用

页数：7

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