Highly sensitive and portable mercury(II) ion sensor using personal glucose meter

被引：0

作者：

Xu Xue-tao ^{[1
]}

Liang Kai-yi ^{[2
]}

Zeng Jia-ying ^{[3
]}

机构：

[1] HKUST Fok Ying Tung Grad Sch, Guangzhou 511458, Guangdong, Peoples R China

[2] Univ Maine, Fac Sci & Tech, F-72085 Le Mans 9, France

[3] S China Univ Technol, Guangzhou, Guangdong, Peoples R China

来源：

ANALYTICAL METHODS | 2015年 / 7卷 / 01期

关键词：

GOLD NANOPARTICLES; COLORIMETRIC DETECTION; WATER SAMPLES; MERCURIC ION; QUANTUM DOTS; HG2+; DNA; QUANTIFICATION; BINDING;

D O I：

10.1039/c4ay01502a

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, a highly sensitive and portable mercury(II) ion sensor based on personal glucose meter (PGM) recording is proposed. Thymine-thymine mismatches in the capture and detection of DNA were used to recognize target Hg2+. Magnetic separation and hydrolysis of sucrose into glucose of DNA-invertase conjugation were employed to obtain the PGM signal. There was a linear relationship between the PGM signal and the concentration of Hg2+ in the range of 8.0 nM to 1 mu M. A correlation coefficient of 0.995 was obtained and the relative standard deviation was 3.6% for a concentration of 100 nM Hg2+ (n = 9). The selectivity and performance of the Hg2+ sensor in lake water, tap water and river water were also studied, which suggested our method has a great potential to be used in real applications.

引用

页码：81 / 85

页数：5

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