Structure of two-component lipid membranes on solid support: an x-ray reflectivity study.
Phys Rev E Stat Nonlin Soft Matter Phys
; 74(5 Pt 1): 051911, 2006 Nov.
Article
em En
| MEDLINE
| ID: mdl-17279943
ABSTRACT
We report an x-ray reflectivity study of phospholipid membranes deposited on silicon by vesicle fusion. The samples investigated were composed of single phospholipid bilayers as well as two-component lipid bilayer systems with varied charge density. We show that the resolution obtained in the density profile across the bilayer is high enough to distinguish two head-group maxima in the profile if the sample is in the phase coexistence regime. The water layer between the bilayer and silicon is found to depend on the lipid surface charge density.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fosfolipídeos
/
Difração de Raios X
/
Microdomínios da Membrana
/
Bicamadas Lipídicas
/
Fluidez de Membrana
/
Fusão de Membrana
/
Modelos Químicos
Idioma:
En
Revista:
Phys Rev E Stat Nonlin Soft Matter Phys
Assunto da revista:
BIOFISICA
/
FISIOLOGIA
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Alemanha