Preparation, regulation and biological application of a Schiff base fluorescence probe.
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.
School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
Ninghua
N
Yin
Department of Chemistry, Shanxi Medical University, Taiyuan 030001, PR China.
Haipeng
H
Diao
Department of Chemistry, Shanxi Medical University, Taiyuan 030001, PR China.
Wen
W
Liu
School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
Jingru
J
Wang
School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China. Electronic address: lhfeng@sxu.edu.cn.
Liheng
L
Feng
D000535:Aluminum / Q000737:chemistry; D045744:Cell Line, Tumor; D003300:Copper / Q000737:chemistry; D005456:Fluorescent Dyes / Q000737:chemistry* / Q000494:pharmacology*; D006801:Humans; D007477:Ions; D057054:Molecular Imaging; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D013050:Spectrometry, Fluorescence
D005456:Fluorescent Dyes; D007477:Ions; D012545:Schiff Bases; D003300:Copper; D000535:Aluminum
Cells imaging; Fluorescence probe; Metal ions; Regulation switch; Schiff base