Formation of J-aggregates of cyanine dyes in bilayer lipid vesicles

Autor:	F Garcı́a-Jiménez, R Sánchez-Obregón, O Collera, M.I Khramov
Rok vydání:	2000
Předmět:	Egg lecithin Aggregation number Vesicle Bilayer General Physics and Astronomy Photochemistry chemistry.chemical_compound chemistry Dipalmitoylphosphatidylcholine Organic chemistry Physical and Theoretical Chemistry Cyanine Absorption (chemistry) J-aggregate
Zdroj:	Chemical Physics Letters. 331:42-46
ISSN:	0009-2614
DOI:	10.1016/s0009-2614(00)01073-3
Popis:	The absorption behavior of cyanine dyes in lipid vesicles prepared from egg lecithin and synthetic dipalmitoylphosphatidylcholine was studied. The molecules of the cyanine dyes are readily redistributed between the vesicles with the characteristic time of several minutes and form J-aggregates when the average number of monomeric dye molecules exceeds 3.2 per vesicle, far below the most common minimum aggregation number, which is between 20 and 50, for cyanine dyes in J-aggregates. The formation of J-aggregates was followed spectroscopically by the appearance of a narrow red-shifted band.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3efdf687902bac524e84ef637b8263ef https://doi.org/10.1016/s0009-2614(00)01073-3 Zobrazit plný text záznamu Full Text from ScienceDirect