高等学校化学研究 ›› 1995, Vol. 11 ›› Issue (2): 117-121.
FT-Raman Spectroscopic Studies on the Interaction of Metal Ions With Sphingomyelin Bilayer
ZHAO Bing1, ZHANG Sou-bo2, LIU Ju-zheng2, YUAN Chun-bo2, ZHAO Da-qing3
- 1. Key Laboratory of Molecular Spectra and Structure, Jilin University, Changchun, 130023;
2. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun, 130022;
3. Institute of Biophysics, Academia Sinica, Beijing, 100080
FT-Raman Spectroscopic Studies on the Interaction of Metal Ions With Sphingomyelin Bilayer
ZHAO Bing1, ZHANG Sou-bo2, LIU Ju-zheng2, YUAN Chun-bo2, ZHAO Da-qing3
- 1. Key Laboratory of Molecular Spectra and Structure, Jilin University, Changchun, 130023;
2. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun, 130022;
3. Institute of Biophysics, Academia Sinica, Beijing, 100080
摘要： The interaction of trivalent lanthanide ions and divalent calcium ions with sph- ngomyelm bilayer has been studied by FT-Raman spectroscopy.The results showed that the bonding of metal ions to the phosphate group of sphingomyelin bi-iayer,either La3+or Ca2+did not change the conformation of the choline group,that is,O-C-C-N+ is still in its gauche conformation.The presence of metal ions changed the states of the interfacial region from liquid-like to amorphous state and even to crystalline.They increased the fluidity of acyl chains of sphingomyelin bilaver and made them packed disorderly.