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Local structure and density fluctuations in confined fluids

Review article
Authors Kim Nygård
Published in Current Opinion in Colloid & Interface Science
Volume 22
Pages 30-34
ISSN 1359-0294
Publication year 2016
Published at Department of Chemistry and Molecular Biology
Pages 30-34
Language en
Keywords Confined fluids, Pair densities, Density fluctuations, Solvophobicity
Subject categories Surfaces and interfaces, Liquid physics, Mesoscopic physics, Physical Chemistry, Surface and colloid chemistry, Statistical mechanics


Spatial confinement modifies the microscopic structure of dense fluids, thereby inducing for example structural forces between the confining walls. However, confinement also modifies the fluids' density fluctuations, resulting in more elusive but equally important effects. In this brief review it is shown that both of these phenomena are naturally analyzed using the confined fluid's pair densities, which have recently become also experimentally accessible. Two particular topics are discussed, namely, the mechanisms of oscillatory density profiles and ensuing solvation forces in dense confined fluids as well as the behavior of liquids in solvophobic confinement.

Page Manager: Webmaster|Last update: 9/11/2012

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