Abstract: Using the bromopeptide BrC5Gly2C16 and 5,10, 15-triphenyl-20-polyhydroxyllphenylporphyrin(HPTPP) as the basic raw materials, the porphyrin-liposome compound P-GlyL was synthesized and characterized by elemental analysis, UV-vis spectra, IR spectra and 1H NMR spectra, which is available for a novel molecular device. The UV-vis spectra and fluorescence spectra of this compound in the Zn2+ solution with a variable concentration was studied. The results show that the emission peak at 650.0nm decreases, and two new emission peaks at 438nm and 595nm appear when the Zn2+ solution is added. The fluorescence intensity is enhanced with an increase of metal ion concentration, while the peaks at 349.0nm and 698.5nm have a small red-shift of 0.5nm with their intensities increasing.

Key words: molecular device , the fluorescence spectra, porphyrin-liposome compound