Repulsion between inorganic particles inserted within surfactant bilayers.
Phys Rev Lett
; 101(9): 098101, 2008 Aug 29.
Article
em En
| MEDLINE
| ID: mdl-18851663
ABSTRACT
We study by synchrotron small-angle x-ray scattering highly aligned lamellar phases of a zwitterionic surfactant, doped with monodisperse and spherical hydrophobic inorganic particles as a function of particle concentration. Analysis of the structure factor of the two-dimensional fluid formed by the particles in the plane of the bilayer gives access to their membrane-mediated interaction, which is repulsive, with a contact value of about 4kBT and a range of 14 angstroms. Systematic application of this technique should lead to a better understanding of the interaction between membrane inclusions.
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Base de dados:
MEDLINE
Assunto principal:
Tensoativos
/
Dimetilaminas
/
Bicamadas Lipídicas
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article