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Photoinduced interaction of thionine with phospholipid and cholesterol in artificial membranes

โœ Scribed by Chirasree SenVarma; Benoy B. Bhowmik


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
663 KB
Volume
8
Category
Article
ISSN
1011-1344

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โœฆ Synopsis


The photoinduced interaction of thionine dye with phosphatidylcholine (PC) (and its components, e.g. lysoPC, phosphorylcholine and choline) and oxidized cholesterol was studied in artificial membranes using spectrophotometric and photoelectrochemical methods. The results show that the dye (electron acceptor) in its singlet excited state forms 1:1 electron donor-acceptor (EDA) complexes with the lipids (electron donor). The electrode kinetics of the photoinduced redox reactions in the cell were also studied to confirm the mechanism of photoinduced interaction between the dye and the lipid.


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