Photoisomerization of merocyanine 540 in polymer-surfactant aggregate
نویسندگان
چکیده
منابع مشابه
Photodynamic action of merocyanine 540 on carcinoma of cervix cells.
Results of the studies carried out on localization and photodynamic action of merocyanine 540 (MC540) on carcinoma of cervix (HeLa) cells are presented. Fluorescence microscopic study showed that when HeLa cells were incubated with MC540 in dark, the dye localized in plasma membrane of cells. Photoirradiation of cells in presence of MC540 led to enhancement of dye uptake, intracellular localiza...
متن کاملMerocyanine 540 as a flow cytometric probe of membrane lipid organization in leukocytes.
Merocyanine 540 (MC540) is a fluorescent probe that binds preferentially to membranes with loosely packed lipids. When combined with flow cytometry, it provides a novel methodology for rapidly and quantitatively assessing lipid organization in individual leukocytes. Analysis of cells stained simultaneously with MC540 and 1-[4-trimethylammoniumphenyl]-6-phenyl-1,3,5-hexatriene, to normalize for ...
متن کاملPhotophysical Processes of Merocyanine 540 in Solutions and in Organized Media
Photophysical processes of merocyanine 540 (MC540) are studied using picosecond time-resolved emission spectroscopy. The nonradiative rate of MC540 increases from 0.32 × 109 s-1 in dioxane to 8.73 × 109 s-1 in water, i.e., nearly 27 times. This is attributed to the decrease in the barrier of photoisomerization with increase in polarity and the consequent increase in the rate of photoisomerizati...
متن کاملMerocyanine 540-sensitized photoinactivation of enveloped viruses in blood products: site and mechanism of phototoxicity.
The amphipathic dye, merocyanine 540 (MC540), which preferentially photosensitizes enveloped viruses and virus-infected cells, is currently being evaluated in preclinical models as a blood sterilizing agent. In this communication, we report on an initial analysis of the site and nature of MC540-mediated photodynamic damages to human herpes simplex virus type 1 and human cytomegalovirus. The com...
متن کاملMerocyanine 540-Sensitized Photoinactivation of Enveloped Viruses in Blood Products: Site and Mechanism
The amphipathic dye, merocyanine 540 (MC540). which preferentially photosensitizes enveloped viruses and virusinfected cells, is currently being evaluated in preclinical models as a blood sterilizing agent. In this communication, we report on an initial analysis of the site and nature of MC54O-mediated photodynamic damages to human herpes simplex virus type 1 and human cytomegalovirus. The comi...
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ژورنال
عنوان ژورنال: Journal of Chemical Sciences
سال: 2002
ISSN: 0253-4134,0973-7103
DOI: 10.1007/bf02709984