Journal
TETRAHEDRON
Volume 56, Issue 36, Pages 6999-7002Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(00)00522-6
Keywords
lipids; luminescence; photophysics
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Solvation dynamics of 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl) 4H-pyran (DCM) in dipalmitoylphosphatidylcholine (DPPC) vesicles in water is studied using picosecond emission spectroscopy. The solvation dynamics of DCM in DPPC vesicles is found to be bi-exponential with two components of 120 +/- 20 ps (20%) and 5.5 +/- 0.5 ns (80%). This indicates slow relaxation of the water molecules inside the water pool of the lipid vesicles. (C) 2000 Elsevier Science Ltd. All rights reserved.
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