期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 328, 期 -, 页码 217-224出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2016.06.006
关键词
Coumarin; Quinoline; FRET; Ratiometric fluorescent probe; Al3+
资金
- Natural Science Foundation of China [21165006]
- Fund of the International Cooperation Projects of Guizhou Province [20137002]
- Chun-Hui Fund of Chinese Ministry of Education [Z2015007]
- Innovation Fund of the Graduate Student of Guizhou University [2016003]
- EPSRC
- EPSRC [EP/L012804/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/L012804/1] Funding Source: researchfish
A coumarin-quinoline based fluorescence resonance energy transfer (FRET) system (TCQ) has been synthesized and employed as a ratiometric fluorescence probe. The selective fluorescent response of the probe TCQ toward Al3+ was devised by employing a quinoline moiety as a FRET energy donor with a coumarin moiety as an energy acceptor. The quinoline emission at 390 nm decreased and the coumarin emission at 480 nm increased concurrently on addition of Al3+ under excitation wavelength at 253 nm. The TCQ probe exhibited high selectivity for Al3+ as compared to other tested metal ions and the ratiometric sensing of Al3+ was determined by plotting the fluorescence intensity ratio at 480 nm and 390 nm versus Al3+ ion concentration. Moreover, test strips based on TCQ were fabricated, which were found to act as a convenient and efficient Al3+ ion detection kit. Furthermore, this system has been used for imaging of Al3+ in living cells. (C) 2016 Elsevier B.V. All rights reserved.
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