Highly selective and ultrasensitive detection of Hg2+ based on fluorescence quenching of Au nanoclusters by Hg2+-Au+ interactions

Jianping Xie; Yuangang Zheng; Jackie Y. Ying

doi:10.1039/b920748a

Highly selective and ultrasensitive detection of Hg²⁺ based on fluorescence quenching of Au nanoclusters by Hg²⁺-Au⁺ interactions

Jianping Xie
, Yuangang Zheng
, Jackie Y. Ying

Research output: Contribution to journal › Article › peer-review

718 Scopus citations

Abstract

A simple label-free method for the detection of Hg²⁺ ions with high selectivity and sensitivity has been developed by using fluorescent Au NCs in aqueous media. The sensing mechanism was based on the high-affinity metallophilic Hg²⁺-Au⁺ interactions, which effectively quenched the fluorescence of Au NCs.

Original language	English
Pages (from-to)	961-963
Number of pages	3
Journal	Chemical Communications
Volume	46
Issue number	6
DOIs	https://doi.org/10.1039/b920748a
State	Published - 2010
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
General Chemistry
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1039/b920748a

Cite this

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title = "Highly selective and ultrasensitive detection of Hg2+ based on fluorescence quenching of Au nanoclusters by Hg2+-Au+ interactions",

abstract = "A simple label-free method for the detection of Hg2+ ions with high selectivity and sensitivity has been developed by using fluorescent Au NCs in aqueous media. The sensing mechanism was based on the high-affinity metallophilic Hg2+-Au+ interactions, which effectively quenched the fluorescence of Au NCs.",

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AB - A simple label-free method for the detection of Hg2+ ions with high selectivity and sensitivity has been developed by using fluorescent Au NCs in aqueous media. The sensing mechanism was based on the high-affinity metallophilic Hg2+-Au+ interactions, which effectively quenched the fluorescence of Au NCs.

UR - https://www.scopus.com/pages/publications/75649119281

U2 - 10.1039/b920748a

DO - 10.1039/b920748a

M3 - Article

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AN - SCOPUS:75649119281

SN - 1359-7345

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SP - 961

EP - 963

JO - Chemical Communications

JF - Chemical Communications

IS - 6