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arXiv · 1504.01113

Repulsion Between Inorganic Particles Inserted Within Surfactant Bilayers

Doru Constantin·Brigitte Pansu·Marianne Impéror·Patrick Davidson·François Ribot
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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 4k$_{\text{B}}$T and a range of 14 {\AA}. Systematic application of this technique should lead to a better understanding of the interaction between membrane inclusions.

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Doru Constantin, Brigitte Pansu, Marianne Impéror, Patrick Davidson, François Ribot. 2015-04-05. Repulsion Between Inorganic Particles Inserted Within Surfactant Bilayers. https://doi.org/10.1103/physrevlett.101.098101

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