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  • Title: Preparation, regulation and biological application of a Schiff base fluorescence probe.
    Author: Yin N, Diao H, Liu W, Wang J, Feng L.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2016 Jan 15; 153():1-5. PubMed ID: 26282317.
    Abstract:
    A facile fluorescence switch with Schiff base units was designed and achieved by nucleophilic addition and dehydration reaction. The fluorescence of the probe can be regulated by metal ions (Al(3+) and Cu(2+)). The whole process shows that the weak fluorescence of the probe enhances with the addition of Al(3+), and then the strong fluorescence of the probe/Al(3+) ensemble reduces by introducing Cu(2+). Meanwhile, the solution color changes of the probe with metal ions can be observed under 365 nm UV-vis light from weak light, pale green, green, pale green to weak light. Noticeably, the photo regulation processes of the probe by metal ions can be realized in the biological system and applied in cells imaging. The work provides a new strategy for designing facile regulation probe and develops a new application for Schiff base derivatives.
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