Application of a DNA-based luminescence switch-on method for the detection of mercury(II) ions in water samples from Hong Kong

Hong-Zhang He; Ka-Ho Leung; Wai-Chung Fu; Daniel Shiu-Hin Chan; Chung-Hang Leung; Dik-Lung Ma

doi:10.1088/1748-9326/7/4/044032

Application of a DNA-based luminescence switch-on method for the detection of mercury(II) ions in water samples from Hong Kong

Hong-Zhang He, Ka-Ho Leung, Wai-Chung Fu, Daniel Shiu-Hin Chan, Chung-Hang Leung, Dik-Lung Ma^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

Mercury is a highly toxic environmental contaminant that damages the endocrine and central nervous systems. In view of the contamination of Hong Kong territorial waters with anthropogenic pollutants such as trace heavy metals, we have investigated the application of our recently developed DNA-based luminescence methodology for the rapid and sensitive detection of mercury(II) ions in real water samples. The assay was applied to water samples from Shing Mun River, Nam Sang Wai and Lamma Island sea water, representing natural river, wetland and sea water media, respectively. The results showed that the system could function effectively in real water samples under conditions of low turbidity and low metal ion concentrations. However, high turbidity and high metal ion concentrations increased the background signal and reduced the performance of this assay. © 2012 IOP Publishing Ltd.

Original language	English
Article number	044032
Journal	Environmental Research Letters
Volume	7
Issue number	4
Online published	26 Nov 2012
DOIs	https://doi.org/10.1088/1748-9326/7/4/044032
Publication status	Published - Dec 2012
Externally published	Yes

Funding

This work is supported by Environment and Conservation Fund (ECF Project 3/2010), Hong Kong Baptist University (FRG2/11-12/009), 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).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Research Keywords

mercury(II) ion detection
DNA based
luminescent probe
Hong Kong seawater

Publisher's Copyright Statement

This full text is made available under CC-BY-NC-SA 3.0. https://creativecommons.org/licenses/by-nc-sa/3.0/

RGC Funding Information

RGC-funded

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abstract = "Mercury is a highly toxic environmental contaminant that damages the endocrine and central nervous systems. In view of the contamination of Hong Kong territorial waters with anthropogenic pollutants such as trace heavy metals, we have investigated the application of our recently developed DNA-based luminescence methodology for the rapid and sensitive detection of mercury(II) ions in real water samples. The assay was applied to water samples from Shing Mun River, Nam Sang Wai and Lamma Island sea water, representing natural river, wetland and sea water media, respectively. The results showed that the system could function effectively in real water samples under conditions of low turbidity and low metal ion concentrations. However, high turbidity and high metal ion concentrations increased the background signal and reduced the performance of this assay. {\textcopyright} 2012 IOP Publishing Ltd. ",

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T1 - Application of a DNA-based luminescence switch-on method for the detection of mercury(II) ions in water samples from Hong Kong

AU - He, Hong-Zhang

AU - Leung, Ka-Ho

AU - Fu, Wai-Chung

AU - Chan, Daniel Shiu-Hin

AU - Leung, Chung-Hang

AU - Ma, Dik-Lung

PY - 2012/12

Y1 - 2012/12

N2 - Mercury is a highly toxic environmental contaminant that damages the endocrine and central nervous systems. In view of the contamination of Hong Kong territorial waters with anthropogenic pollutants such as trace heavy metals, we have investigated the application of our recently developed DNA-based luminescence methodology for the rapid and sensitive detection of mercury(II) ions in real water samples. The assay was applied to water samples from Shing Mun River, Nam Sang Wai and Lamma Island sea water, representing natural river, wetland and sea water media, respectively. The results showed that the system could function effectively in real water samples under conditions of low turbidity and low metal ion concentrations. However, high turbidity and high metal ion concentrations increased the background signal and reduced the performance of this assay. © 2012 IOP Publishing Ltd.

AB - Mercury is a highly toxic environmental contaminant that damages the endocrine and central nervous systems. In view of the contamination of Hong Kong territorial waters with anthropogenic pollutants such as trace heavy metals, we have investigated the application of our recently developed DNA-based luminescence methodology for the rapid and sensitive detection of mercury(II) ions in real water samples. The assay was applied to water samples from Shing Mun River, Nam Sang Wai and Lamma Island sea water, representing natural river, wetland and sea water media, respectively. The results showed that the system could function effectively in real water samples under conditions of low turbidity and low metal ion concentrations. However, high turbidity and high metal ion concentrations increased the background signal and reduced the performance of this assay. © 2012 IOP Publishing Ltd.

KW - mercury(II) ion detection

KW - DNA based

KW - luminescent probe

KW - Hong Kong seawater

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DO - 10.1088/1748-9326/7/4/044032

M3 - RGC 21 - Publication in refereed journal

AN - SCOPUS:84871830166

SN - 1748-9318

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JO - Environmental Research Letters

JF - Environmental Research Letters

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ER -

Application of a DNA-based luminescence switch-on method for the detection of mercury(II) ions in water samples from Hong Kong

Abstract

Funding

UN SDGs

Research Keywords

Publisher's Copyright Statement

RGC Funding Information

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