Turn-on fluorescent chemosensor for Hg2+ based on multivalent rhodamine ligands

X. Wang, M. Iqbal, Jurriaan Huskens, Willem Verboom

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)


Rhodamine-based fluorescent chemosensors 1 and 2 exhibit selective fluorescence enhancement to Fe3+ and Hg2+ over other metal ions at 580 nm in CH3CN/H2O (3/1, v/v) solution. Bis(rhodamine) chemosensor 1, under optimized conditions (CH3CN/HEPES buffer (0.02 M, pH = 7.0) (95/5, v/v)), shows a high selectivity and sensitivity to Hg2+, with a linear working range of 0–50 μM, a wide pH span of 4–10, and a detection limit of 0.4 μM Hg2+
Original languageUndefined
Pages (from-to)16822-16832
Number of pages11
JournalInternational journal of molecular sciences
Issue number12
Publication statusPublished - 2012


  • METIS-293838
  • IR-85070

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