Structure and depletion at fluorocarbon and hydrocarbon/water liquid/liquid interfaces.
The results of x-ray reflectivity studies of two oil/water (liquid/liquid) interfaces are inconsistent with recent predictions of the presence of a vaporlike depletion region at hydrophobic/aqueous interfaces. One of the oils, perfluorohexane, is a fluorocarbon whose superhydrophobic 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 subangstrom proximity of water to soft hydrophobic materials.
Kashimoto
Kaoru
K
Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA.
Yoon
Jaesung
J
Hou
Binyang
B
Chen
Chiu-hao
CH
Lin
Binhua
B
Aratono
Makoto
M
Takiue
Takanori
T
Schlossman
Mark L
ML