Histidine–dialkoxyanthracene dyad for selective and sensitive detection of mercury ions

Sachin Patil, Widad Belhajjame, Basem Moosa, Niveen M. Khashab*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Histidine-dialkoxyanthracene (HDA) was synthesised as a turn off type fluorescent sensor for fast and sensitive detection of mercury ions (Hg2+) in aqueous media. The two histidine moieties act as ‘claws’ to selectively complex Hg2+. The binding ratio of HDA to Hg2+ was 1:1 (metal-to-ligand ratio). The association constant for Hg2+ towards the receptor HDA obtained from Benesi–Hildebrand plot was found to be 3.22 × 104 M−1 with detection limit as low as 4.7 nM (0.94 μg/L).

Original languageEnglish (US)
Pages (from-to)345-350
Number of pages6
JournalSupramolecular Chemistry
Issue number4
StatePublished - Apr 3 2018

Bibliographical note

Publisher Copyright:
© 2017 Informa UK Limited, trading as Taylor & Francis Group.


  • Fluorescent probe
  • anthracene
  • histidine
  • mercury ions

ASJC Scopus subject areas

  • General Chemistry


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