Solvation dynamics of coumarin 480 in vesicles

被引：83

作者：

Datta, A ^{[1
]}

Pal, SK ^{[1
]}

Mandal, D ^{[1
]}

Bhattacharya, K ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Phys Chem, Calcutta 700032, W Bengal, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1998年 / 102卷 / 31期

关键词：

D O I：

10.1021/jp980717x

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 Coumarin 480 (C-480) in dimyristoylphosphatidylcholine (DMPC) vesicles in water is studied using picosecond time-resolved Stokes shift. In sonicated unilamellar DMPC vesicles C-480 exhibits wavelength dependent fluorescence decays. At short wavelengths a fast decay is observed while at the long wavelengths a growth in the nanosecond time scale precedes the decay. The solvation dynamics of C-480 in DMPC vesicles is found to be bimodal with two components of 0.6 and 11 ns, which is similar to the solvation dynamics of C-480 in the large water pools of AOT/n-heptane/water (AOT = aerosol OT) microemulsions.

引用

页码：6114 / 6117

页数：4

共 42 条

[11]

DEMCHENKO AP, 1988, EUR BIOPHYS J, V15, P569

[12] Comparison of the photophysics of an aggregating and non-aggregating aluminium phthalocyanine system incorporated into unilamellar vesicles [J].

Dhami, S ;

Phillips, D .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1996, 100 (1-3) :77-84

[13] Time-resolved fluorescence photophysics of trans-stilbene in a DPPC lipid bilayer: Evidence for a free rotation, location within two sites and a pre-liquid crystalline phase transition [J].

Holmes, AS ;

Birch, DJS ;

Sanderson, A ;

Aloisi, GG .

CHEMICAL PHYSICS LETTERS, 1997, 266 (3-4) :309-316

[14] FEMTOSECOND SOLVATION DYNAMICS OF WATER [J].

JIMENEZ, R ;

FLEMING, GR ;

KUMAR, PV ;

MARONCELLI, M .

NATURE, 1994, 369 (6480) :471-473

[15] SOLVENT EFFECTS ON EMISSION YIELD AND LIFETIME FOR COUMARIN LASER-DYES - REQUIREMENTS FOR A ROTATORY DECAY MECHANISM [J].

JONES, G ;

JACKSON, WR ;

CHOI, C ;

BERGMARK, WR .

JOURNAL OF PHYSICAL CHEMISTRY, 1985, 89 (02) :294-300

[16] DYNAMICS OF ACRYLODAN-LABELED BOVINE AND HUMAN SERUM-ALBUMIN ENTRAPPED IN A SOL-GEL-DERIVED BIOGEL [J].

JORDAN, JD ;

DUNBAR, RA ;

BRIGHT, FV .

ANALYTICAL CHEMISTRY, 1995, 67 (14) :2436-2443

[17] Novel features of the main transition of dimyristoylphosphocholine bilayers revealed by fluorescence spectroscopy [J].

Jutila, A ;

Kinnunen, PKJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (38) :7635-7640

[18] RED-EDGE EXCITATION OF FLUORESCENCE AND DYNAMIC PROPERTIES OF PROTEINS AND MEMBRANES [J].

LAKOWICZ, JR ;

KEATINGNAKAMOTO, S .

BIOCHEMISTRY, 1984, 23 (13) :3013-3021

[19] DYNAMICS OF ACYLODAN-LABELED BOVINE AND HUMAN SERUM-ALBUMIN SEQUESTERED WITHIN AEROSOL-OT REVERSE MICELLES [J].

LUNDGREN, JS ;

HEITZ, MP ;

BRIGHT, FV .

ANALYTICAL CHEMISTRY, 1995, 67 (20) :3775-3781

[20] THE DYNAMICS OF SOLVATION IN POLAR LIQUIDS [J].

MARONCELLI, M .

JOURNAL OF MOLECULAR LIQUIDS, 1993, 57 :1-37

← 1 2 3 4 5 →