Solvation dynamics of DCM in lipid

被引：83
|
作者：
Pal, SK [1 ]
Sukul, D [1 ]
Mandal, D [1 ]
Bhattacharyya, K [1 ]
机构：
[1] Indian Assoc Cultivat Sci, Dept Phys Chem, Calcutta 700032, W Bengal, India
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2000年 / 104卷 / 18期
关键词：
D O I：
10.1021/jp993348t
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Solvation dynamics of 4-(dicyanomethylene)-2-methyl-6(p-dimethylaminostyryl)-4H-pyran (DCM) in dimyristoylphosphatidylcholine (DMPC) vesicles in water is studied by using the picosecond time-resolved Stokes shift technique. In unilamellar DMPC vesicles, DCM exhibits wavelength-dependent fluorescence decays with a fast decay at the blue end and a slow decay preceded by a distinct growth at the red end of the emission spectrum. The solvation dynamics of DCM in DMPC vesicles is found to be biexponential with two components 230 ps (40%) and 1.6 ns (60%) and is attributed to the relaxation of the water molecules inside the water pool of DMPC vesicles.
引用
收藏
页码：4529 / 4531
页数：3
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