Journal
INORGANIC CHEMISTRY
Volume 59, Issue 15, Pages 10920-10927Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.0c01412
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Funding
- National Natural Science Foundation of China [21977044, 21731004, 21907050, 91953201]
- Natural Science Foundation of Jiangsu Province [BK20190282]
- Excellent Research Program of Nanjing University [ZYJH004]
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A reversible fluorescent probe DRhFe is devised by linking spirolactam rhodamine and dansylamide through an Fe3+ ionophore N-2-hydroxyethyldiethylenetriamine, where Fe3+ chelation generating rhodamine B can switch intramolecular fluorescence resonance energy transfer for ratiometric Fe3+ sensing. Probe DRhFe exhibits an Fe3+-specific emission shift from 483 to 576 nm, and this ratiometric response has been successfully applied to monitor labile Fe3+ fluctuations in cells undergoing ferroptosis.
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