Halder, A and Sen, S and Das Burman, A and Patra, A and Bhattacharyya, K (2004) Solvation dynamics in dimyristoyl-phosphatidylcholine entrapped inside a sol-gel matrix. JOURNAL OF PHYSICAL CHEMISTRY B, 108 (7). pp. 2309-2312. ISSN 1520-6106

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Abstract

Solvation dynamics of coumarin 480 (C480) is studied in a sol-gel matrix containing dimyristoyl-phosphatidylcholine (DMPC). In the presence of DMPC, the average solvation time (<tau(s)>) in the sol-gel glass is found to be 500 ps. This indicates that in the sol-gel matrix solvation dynamics in the presence of DMPC is slower than that in its absence. The solvation dynamics of C480 in the DMPC entrapped TEOS sol-gel matrix is much faster than that in DMPC liposomes in bulk water. This suggests that the DMPC entrapped TEOS sol-gel matrix is very different from DMPC liposomes in bulk water. The rotational relaxation of C480 is found to be very fast giving rise to a very small initial anisotropy value (r(0) = 0.08). This shows that even after incorporation of lipids inside the TEOS sol-gel matrix, the probe C480 remains highly mobile.

Item Type:	Article
Subjects:	Processing Science
Divisions:	UNSPECIFIED
Depositing User:	Subhra Lahiri
Date Deposited:	25 Jan 2012 10:07
Last Modified:	25 Jan 2012 10:07
URI:	http://cgcri.csircentral.net/id/eprint/499

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