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

页码：4529 / 4531

页数：3

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