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Solvation dynamics in dimyristoyl-phosphatidylcholine entrapped inside a sol-gel matrix

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Solvation dynamics in dimyristoyl-phosphatidylcholine entrapped inside a sol-gel matrix
 
Creator Halder, A
Sen, S
Das Burman, A
Patra, A
Bhattacharyya, K
 
Subject Processing Science
 
Description 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.
 
Publisher AMER CHEMICAL SOC
 
Date 2004-02-19
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/499/1/J_Phys_Chem_B_108_(2004)_2309%2D2312.pdf
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
 
Relation http://cgcri.csircentral.net/499/