Fluorescent dye containing phenol-pyridyl for selective detection of aluminum ions

Jungha Lee, Hyun Kim, Soojin Kim, Jin Young Noh, Eun Joo Song, Cheal Kim, Jinheung Kim

Research output: Contribution to journalArticlepeer-review

115 Scopus citations


A phenol-pyridylimine probe was utilized as an optical sensor to quantify the presence of aluminum ions using a turn-on fluorescence enhancement approach. The high sensitivity was the result of FRET amplification of the receptor subunit fluorescence emission. The complex stability constant (Ks) for the stoichiometric 1:1 complex of the sensor with aluminum ions was obtained by fluorimetric titration. Remarkably, fluorescence output was not significantly affected by other trivalent cations, particularly Ga3+ and In3+.

Original languageEnglish
Pages (from-to)590-594
Number of pages5
JournalDyes and Pigments
Issue number2
StatePublished - Feb 2013


  • Aluminum ion sensing
  • Fluorescent chemosensor
  • Phenol
  • Pyridyl
  • Selective binding
  • Turn-on detection


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