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

被引：26
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).
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页数：7
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