A novel turn-on fluorescent probe for Al3+ and Fe3+ in aqueous solution and its imaging in living cells

作者：Dai, Yanpeng; Fu, Jiaxin; Yao, Kun; Song, Qianqian; Xu, Kuoxi^*; Pang, Xiaobin^*

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2018, 192: 257-262.

DOI：10.1016/j.saa.2017.11.001

• Quinoline
• Probe
• Fluorescence turn-on
• Al3+ and Fe3+ detection

A quinoline-based fluorescence probe has been prepared and characterized. Probe 1 showed a selective sensing ability for Al3+ and Fe3+ ions through fluorescence enhancement response at 515 nm when it was excited at 360 nm. In the presence of Fe3+ ion, probe 1 exhibited a detection limit of 2.10 x 10(-6) M. As for Al3+, its detection limit of 3.58 x 10(-7) M was significantly lower than the highest limit of Al3+ in drinking water recommended by the WHO (7.41 mu M), representing a rare example in reported fluorescent probe for Al3+ ion. The fluorescence microscopy experiments have demonstrated that probe 1 could be used in live cells for the detection of Al3+ and Fe3+ ions.

• 出版日期2018-3-5
• 单位河南大学