Journal
RSC ADVANCES
Volume 4, Issue 1, Pages 248-253Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra44843f
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Funding
- National Natural Science Foundation of China [21072158, 20802056]
- Special Foundation of the Education Committee of Shaanxi Province [12JK0580]
- French Chinese Foundation for Science and Applications (FFCSA)
- China Scholars Council (CSC)
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A novel coumarin-based fluorogenic probe bearing the tris unit (DAT-1) with high selectivity and suitable affinity toward Fe3+ over other cations tested was developed in biological systems. The sensing mechanism was studied by quantum calculations. The probe can be applied to the monitoring of Fe3+ in aqueous solution with a pH span of 3-8. In addition, biological imaging, membrane permeability and nontoxicity demonstrate that DAT-1 could act as a turn-off fluorescent chemosensor for Fe3+ in living cells.
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