Rhodamine hydrazone derivatives bearing thiophene group as fluorescent chemosensors for Hg2+

Sunhi Park, Wantae Kim, K. M.K. Swamy, Hye Yeon Lee, Ji Young Jung, Gyoungmi Kim, Youngmee Kim, Sung Jin Kim, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

Rhodamine derivatives bearing the thiophene (1) and bisthiophene (2) groups are synthesized and their binding selectivity toward various metal ions was studied. The X-ray crystal structure of 1 was also reported. Probes 1 and 2 showed highly selective "Off-On" fluorescence changes with Hg 2+ among various metal ions. These selective changes were attributed to the spirolactam ring opening processes and subsequent hydrolysis. Probes 1 and 2 were sucessfully applied to the cell-imaging of Hg2+ using HeLa cells.

Original languageEnglish
Pages (from-to)323-328
Number of pages6
JournalDyes and Pigments
Volume99
Issue number2
DOIs
StatePublished - 2013

Keywords

  • Colorimetric sensor
  • Fluorescent chemodosimeter
  • Fluorescent chemosensor
  • Mercury ion sensor
  • Rhodamine

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