Sensitive naked-eye detection of Hg2+ based on the aggregation and filtration of thymine functionalized vesicles caused by selective interaction between thymine and Hg2+.
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.
Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences. jiangl@iccas.ac.cn.
Xue
X
Ma
Zhonghan
Z
Sheng
Long
L
Jiang
D002413:Cations, Divalent / Q000032:analysis; D003124:Colorimetry / Q000191:economics / Q000379:methods; D005374:Filtration; D057230:Limit of Detection; D008628:Mercury / Q000032:analysis*; D000078789:Polyacetylene Polymer; D011108:Polymers / Q000737:chemistry* / Q000302:isolation & purification; D053279:Polyynes / Q000737:chemistry* / Q000302:isolation & purification; D013941:Thymine / Q000737:chemistry* / Q000302:isolation & purification
D002413:Cations, Divalent; D000078789:Polyacetylene Polymer; D011108:Polymers; D053279:Polyynes; C082361:polydiacetylene; D008628:Mercury; D013941:Thymine