Sensitive naked-eye detection of Hg2+ based on the aggregation and filtration of thymine functionalized vesicles caused by selective interaction between thymine and Hg2+

Xue Ma; Zhonghan Sheng; Long Jiang

doi:10.1039/C4AN00386A

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Sensitive naked-eye detection of Hg²⁺ based on the aggregation and filtration of thymine functionalized vesicles caused by selective interaction between thymine and Hg²⁺†

Xue Ma,^a Zhonghan Sheng^a and Long Jiang*^a

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* Corresponding authors

^a Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences
E-mail: jiangl@iccas.ac.cn
Fax: +86-10-82612064
Tel: +86-10-82612064

Abstract

We report a sensitive, selective and low-cost method for the naked-eye detection of Hg²⁺. The principle is based on rapid interaction between functionalized PDA vesicles and Hg²⁺, which leads to obvious aggregation of vesicles. Furthermore, using only a simple filtration process, without using any other color indicator or specialized equipment, a higher detection sensitivity for Hg²⁺ (0.1 μM) than chromophoric colorimetric sensors (approximately 1–100 μM) was obtained.

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Article information

DOI: https://doi.org/10.1039/C4AN00386A
Article type: Communication
Submitted: 25 Feb 2014
Accepted: 18 Mar 2014
First published: 18 Mar 2014

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Analyst, 2014,139, 3365-3368

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Sensitive naked-eye detection of Hg²⁺ based on the aggregation and filtration of thymine functionalized vesicles caused by selective interaction between thymine and Hg²⁺

X. Ma, Z. Sheng and L. Jiang, Analyst, 2014, 139, 3365 DOI: 10.1039/C4AN00386A

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