Sensitive naked-eye detection of Hg 2+ based on the aggregation and filtration of thymine functionalized vesicles caused by selective interaction between thymine and Hg 2

We report a sensitive, selective and low-cost method for the naked-eye detection of Hg 2+ . The principle is based on rapid interaction between functionalized PDA vesicles and Hg 2+ , which leads to obvious aggregation of vesicles. Furthermore, using only a simple filtration process, without using a...

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Veröffentlicht in:Analyst (London) 2014, Vol.139 (13), p.3365-3368
Hauptverfasser: Ma, Xue, Sheng, Zhonghan, Jiang, Long
Format: Artikel
Sprache:eng
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Zusammenfassung:We report a sensitive, selective and low-cost method for the naked-eye detection of Hg 2+ . The principle is based on rapid interaction between functionalized PDA vesicles and Hg 2+ , 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 Hg 2+ (0.1 μM) than chromophoric colorimetric sensors (approximately 1–100 μM) was obtained.
ISSN:0003-2654
1364-5528
DOI:10.1039/C4AN00386A