Journal
CHEMICAL COMMUNICATIONS
Volume 47, Issue 11, Pages 3165-3167Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cc05421f
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Funding
- National Research Foundation of Korea [2010-0000728]
- MEST, Republic of Korea [2010-0001630, 2010-0000166]
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A rationally designed, coumarin-based fluorescent sensor imino-coumarin (IC) displays high selectivity for Cu2+ over a variety of competing metal ions in aqueous solution with a significant fluorescence increase. DFT/TDDFT calculations support that the fluorescence 'turn-on' of IC originates from blocking the electron transfer of the nitrogen lone pair upon complexation with Cu2+. IC was successfully applied tomicroscopic imaging for detection of Cu2+ in LLC-MK2 cells (in vitro) and several living organs (in vivo).
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