Interaction, Lipid Exchange, and Effect of Vesicle Size in Systems of Oppositely Charged Vesicles

Autor:	and Liliane Lacombe, Danièle Raison, Valérie Marchi-Artzner, Jean-Marie Lehn, Ludovic Jullien, Luc Belloni
Rok vydání:	1996
Předmět:	Fusion Egg lecithin Aqueous solution Vesicle General Engineering Electron Light scattering Fluorescence spectroscopy Crystallography chemistry.chemical_compound chemistry Biophysics lipids (amino acids peptides and proteins) Surface charge Physical and Theoretical Chemistry
Zdroj:	The Journal of Physical Chemistry. 100:13844-13856
ISSN:	1541-5740 0022-3654
Popis:	The interactions between charged unilamellar vesicles of different size prepared from mixtures of egg lecithin (EPC1), cholesterol, and a charged component, either stearylamine or dicetyl phosphate, were investigated. Several techniques, i.e. fluorescence spectroscopy, 133Cs-NMR, light scattering measurements, and electron and optical microscopies in dilute aqueous solutions, provided evidence that vesicles bearing opposite charges interact via contact followed by lipid exchange; the progressive charge neutralization is shown by 133Cs-NMR to occur without fusion of vesicle internal pools. Vesicle size determines as diverse features as contact duration, extent of lipid exchange, and final distribution of surface charge among the vesicle mixture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0d99aacc7d9f51a6bc4e421964fc3a09 https://doi.org/10.1021/jp960327f Zobrazit plný text záznamu