A Highly Selective and Non-Reaction Based Chemosensor for the Detection of Hg2+ Ions Using a Luminescent Iridium(III) Complex

Daniel Shiu Hin Chan; Wai Chung Fu; Modi Wang; Li Juan Liu; Chung Hang Leung; Dik Lung Ma

doi:10.1371/journal.pone.0060114

A Highly Selective and Non-Reaction Based Chemosensor for the Detection of Hg²⁺ Ions Using a Luminescent Iridium(III) Complex

Daniel Shiu Hin Chan, Wai Chung Fu, Modi Wang, Li Juan Liu, Chung Hang Leung, Dik Lung Ma^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

21 Citations (Scopus)

Abstract

We report herein a novel luminescent iridium(III) complex with two hydrophobic carbon chains as a non-reaction based chemosensor for the detection of Hg²⁺ ions in aqueous solution (<0.002% of organic solvent attributed to the probe solution). Upon the addition of Hg²⁺ ions, the emission intensity of the complex was significantly enhanced and this change could be monitored by the naked eye under UV irradiation. The iridium(III) complex shows high specificity for Hg²⁺ ions over eighteen other cations. The system is capable of detecting micromolar levels of Hg²⁺ ions, which is within the range of many chemical systems.

Original language	English
Article number	e60114
Journal	PLoS ONE
Volume	8
Issue number	3
DOIs	https://doi.org/10.1371/journal.pone.0060114
Publication status	Published - 22 Mar 2013

Scopus Subject Areas

General Biochemistry,Genetics and Molecular Biology
General Agricultural and Biological Sciences
General

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title = "A Highly Selective and Non-Reaction Based Chemosensor for the Detection of Hg2+ Ions Using a Luminescent Iridium(III) Complex",

abstract = "We report herein a novel luminescent iridium(III) complex with two hydrophobic carbon chains as a non-reaction based chemosensor for the detection of Hg2+ ions in aqueous solution (<0.002% of organic solvent attributed to the probe solution). Upon the addition of Hg2+ ions, the emission intensity of the complex was significantly enhanced and this change could be monitored by the naked eye under UV irradiation. The iridium(III) complex shows high specificity for Hg2+ ions over eighteen other cations. The system is capable of detecting micromolar levels of Hg2+ ions, which is within the range of many chemical systems.",

author = "Chan, {Daniel Shiu Hin} and Fu, {Wai Chung} and Modi Wang and Liu, {Li Juan} and Leung, {Chung Hang} and Ma, {Dik Lung}",

note = "This work is supported by Hong Kong Baptist University (FRG2/11-12/009), Environment and Conservation Fund (ECF Project 3/2010), Centre for Cancer and Inflammation Research, School of Chinese Medicine (CCIR-SCM, HKBU), the Health and Medical Research Fund (HMRF/11101212), the Research Grants Council (HKBU/201811 and HKBU/204612), the Science and Technology Development Fund, Macao SAR (001/2012/A) and the University of Macau (SRG013-ICMS12-LCH, MYRG091(Y1-L2)-ICMS12-LCH and MYRG121(Y1-L2)-ICMS12-LCH).",

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T1 - A Highly Selective and Non-Reaction Based Chemosensor for the Detection of Hg2+ Ions Using a Luminescent Iridium(III) Complex

AU - Chan, Daniel Shiu Hin

AU - Fu, Wai Chung

AU - Wang, Modi

AU - Liu, Li Juan

AU - Leung, Chung Hang

AU - Ma, Dik Lung

N1 - This work is supported by Hong Kong Baptist University (FRG2/11-12/009), Environment and Conservation Fund (ECF Project 3/2010), Centre for Cancer and Inflammation Research, School of Chinese Medicine (CCIR-SCM, HKBU), the Health and Medical Research Fund (HMRF/11101212), the Research Grants Council (HKBU/201811 and HKBU/204612), the Science and Technology Development Fund, Macao SAR (001/2012/A) and the University of Macau (SRG013-ICMS12-LCH, MYRG091(Y1-L2)-ICMS12-LCH and MYRG121(Y1-L2)-ICMS12-LCH).

PY - 2013/3/22

Y1 - 2013/3/22

N2 - We report herein a novel luminescent iridium(III) complex with two hydrophobic carbon chains as a non-reaction based chemosensor for the detection of Hg2+ ions in aqueous solution (<0.002% of organic solvent attributed to the probe solution). Upon the addition of Hg2+ ions, the emission intensity of the complex was significantly enhanced and this change could be monitored by the naked eye under UV irradiation. The iridium(III) complex shows high specificity for Hg2+ ions over eighteen other cations. The system is capable of detecting micromolar levels of Hg2+ ions, which is within the range of many chemical systems.

AB - We report herein a novel luminescent iridium(III) complex with two hydrophobic carbon chains as a non-reaction based chemosensor for the detection of Hg2+ ions in aqueous solution (<0.002% of organic solvent attributed to the probe solution). Upon the addition of Hg2+ ions, the emission intensity of the complex was significantly enhanced and this change could be monitored by the naked eye under UV irradiation. The iridium(III) complex shows high specificity for Hg2+ ions over eighteen other cations. The system is capable of detecting micromolar levels of Hg2+ ions, which is within the range of many chemical systems.

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A Highly Selective and Non-Reaction Based Chemosensor for the Detection of Hg²⁺ Ions Using a Luminescent Iridium(III) Complex

Abstract

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