Journal
EPL
Volume 95, Issue 3, Pages -Publisher
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/95/36002
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Funding
- Israel Science Foundation [11/10]
- European Research Council [259205]
- European Research Council (ERC) [259205] Funding Source: European Research Council (ERC)
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We examine the force between two charged surfaces immersed in aqueous mixtures having a coexistence curve. For a homogeneous water-poor phase, as the distance between the surfaces is decreased, a water-rich phase condenses at a distance D-t in the range 1-100 nm. At this distance the osmotic pressure can become negative leading to a long-range attraction between the surfaces. The osmotic pressure vanishes at a distance D-e < D-t, representing a very deep metastable or globally stable energetic state. We give analytical and numerical results for D-t and D-e on the Poisson-Boltzmann level. Copyright (C) EPLA, 2011
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