Structure and Depletion at Fluoro- and Hydro-carbon/Water Liquid/Liquid Interfaces
Soft Condensed Matter
2009-11-13 v1 Statistical Mechanics
Abstract
The results of x-ray reflectivity studies of two oil/water (liquid/liquid) interfaces are inconsistent with recent predictions of the presence of a vapor-like depletion region at hydrophobic/aqueous interfaces. One of the oils, perfluorohexane, is a fluorocarbon whose super-hydrophobic interface with water provides a stringent test for the presence of a depletion layer. The other oil, heptane, is a hydrocarbon and, therefore, is more relevant to the study of biomolecular hydrophobicity. These results are consistent with the sub-angstrom proximity of water to soft hydrophobic materials.
Cite
@article{arxiv.0807.3048,
title = {Structure and Depletion at Fluoro- and Hydro-carbon/Water Liquid/Liquid Interfaces},
author = {Kaoru Kashimoto and Jaesung Yoon and Binyang Hou and Chiu-hao Chen and Binhua Lin and Makoto Aratono and Takanori Takiue and Mark L. Schlossman},
journal= {arXiv preprint arXiv:0807.3048},
year = {2009}
}
Comments
28 pages, 9 figures, main text plus supplementary, to be published in Physical Review Letters