A turn-on and reversible fluorescence sensor for zinc ion

Hsiang Yi Lin, Pi Yun Cheng, Chin Feng Wan, An Tai Wu

Research output: Contribution to journalArticlepeer-review

117 Citations (Scopus)


A simple Schiff base type fluorescent receptor 1 was prepared and evaluated for its fluorescence response to heavy metal ions. Receptor 1 exhibits an "off-on-type" mode with high selectivity in the presence of Zn 2+ ion. The addition of EDTA quenches the fluorescence of receptor 1-Zn2+ complex, making receptor 1 a reversible chemosensor. The selectivity of 1 for Zn2+ is the consequence of combined effects of CHEF, CN isomerization and inhibition of ESIPT.

Original languageEnglish
Pages (from-to)4415-4417
Number of pages3
Issue number19
Publication statusPublished - 2012 Oct 7

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

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