Chemical Communications p. 3165 - 3167 (2011)
Update date:2022-07-29
Topics:
Ko, Kyoung Chul
Wu, Jia-Sheng
Kim, Hyun Jung
Kwon, Pil Seung
Kim, Jong Wan
Bartsch, Richard A.
Lee, Jin Yong
Kim, Jong Seung
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 to microscopic imaging for detection of Cu2+ in LLC-MK2 cells (in vitro) and several living organs (in vivo).
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