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Volume 141, 2009
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Coarse-grained modeling of the interface between water and heterogeneous surfaces

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Abstract

Using coarse-grained models we investigate the behavior of water adjacent to an extended hydrophobic surface peppered with various fractions of hydrophilic patches of different sizes. We study the spatial dependence of the mean interface height, the solvent density fluctuations related to drying the patchy substrate, and the spatial dependence of interfacial fluctuations. We find that adding small uniform attractive interactions between the substrate and solvent cause the mean position of the interface to be very close to the substrate. Nevertheless, the interfacial fluctuations are large and spatially heterogeneous in response to the underlying patchy substrate. We discuss the implications of these findings for the assembly of heterogeneous surfaces.

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Publication details

The article was received on 07 Apr 2008, accepted on 28 May 2008 and first published on 09 Oct 2008


Article type: Paper
DOI: 10.1039/B805786A
Citation: Faraday Discuss., 2009,141, 209-220
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    Coarse-grained modeling of the interface between water and heterogeneous surfaces

    A. P. Willard and D. Chandler, Faraday Discuss., 2009, 141, 209
    DOI: 10.1039/B805786A

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