Surface-specific ordering of reverse micelles in confinement

Nygård, Kim; Satapathy, Dillip Kumar; Perret, Edith; Padeste, Celestino; Bunk, Oliver; David, Christian; Veen, J. Friso van der

doi:10.1039/c0sm00296h

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Journal article

Surface-specific ordering of reverse micelles in confinement

Nygård, Kim Paul Scherrer Institut, Villigen PSI, Switzerland
Satapathy, Dillip Kumar University of Fribourg, Switzerland
Perret, Edith Paul Scherrer Institut, Villigen PSI, Switzerland
Padeste, Celestino Paul Scherrer Institut, Villigen PSI, Switzerland
Bunk, Oliver Paul Scherrer Institut, Villigen PSI, Switzerland
David, Christian Paul Scherrer Institut, Villigen PSI, Switzerland
Veen, J. Friso van der Paul Scherrer Institut, Villigen PSI, Switzerland

2010

Published in:

Soft Matter. - 2010, vol. 6, no. 18, p. 4536-4539

English We have applied holographic X-ray diffraction from fluid-filled channel arrays for model-independent density reconstruction of spherical AOT/water/isooctane reverse micelles (average diameter σ***Missing image substitution***12–13 nm) confined between planar surfaces. We find the confinement-induced ordering of the reverse micelles to strongly depend on the surface potential of the confining surfaces: for hydrophilic surfaces we find diffuse monolayers centered at 13 ± 3 nm away from the solid–fluid interface, while for hydrophobic surfaces we observe close-packed monolayers at the solid–fluid interface.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language