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Type: Artigo de periódico
Title: Thermotropic phase behavior of DPPC liposome systems in the presence of the anti-cancer agent 'Ellipticine'
Author: Cavalcanti, LP
Torriani, IL
Abstract: This letter presents our first results on the structural changes in DPPC multilamellar vesicles dispersed in water in the presence of the anti-cancer agent Ellipticine. The thermotropic phase transitions of the lamellar packing inside lipid vesicles were characterized in situ by small angle X ray diffraction. The results lead to the determination of a critical concentration value for drug loading on the vesicle system around 4% molar fraction of Ellipticine, an indication of the localization of the drug in the alkyl chains and the influence of the drug on the decreasing rate of the bilayer period after the main phase transition.
Subject: liposome
X-ray diffraction
drug delivery
Country: EUA
Editor: Springer
Rights: fechado
Identifier DOI: 10.1007/s00249-006-0077-3
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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