Phenothiazine-aminothiourea-Hg(II) ensemble-based fluorescence turn-on toward iodide in aqueous media and imaging application in live cells

Wenge Yang, Shouhai Yang, Qirun Guo, Tuan Zhang, Keyi Wu, Yonghong Hu

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

A phenothiazine-aminothiourea-based open chemosensor (P1) has been designed and synthesized, which exhibits high selectivity toward Hg2+ by forming a 1:1 complex. In its Hg2+ ensemble, it is reported as a highly sensitive and selective probe for the detection of iodide based on the displacement approach in aqueous solution. The addition of iodide to a solution of phenothiazine-aminothiourea-Hg2+ ensemble resulted in a rapid and remarkable fluorescence off-on (emission at 565 nm). The practical use of an 'ensemble' was demonstrated by its application to the detection of iodide in the living cells.

Original languageEnglish
Pages (from-to)404-408
Number of pages5
JournalSensors and Actuators B: Chemical
Volume213
DOIs
StatePublished - 5 Jul 2015

Keywords

  • Mercury Iodide Human Umbilical Vein Endothelial Cells (HUVEC)
  • Phenothiazine (PTH)

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