Water in contact with extended hydrophobic surfaces: Direct evidence of weak dewetting

Torben René Jensen, Morten Østergaard Jensen, Niels Reitzel, Konstantin Balashev, Günther H.J. Peters, Kristian Kjær, T. Bjørnholm

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X-ray reflectivity measurements reveal a significant dewetting of a large hydrophobic paraffin surface floating on water. The dewetting phenomenon extends less than 15 Angstrom into the bulk water phase and results in an integrated density deficit of about one water molecule per 25-30 Angstrom(2) of water in contact with the paraffin surface. The results are supported by molecular dynamics simulations and related to the hydrophobic effect.
Original languageEnglish
JournalPhysical Review Letters
Issue number8
Pages (from-to)086101
Number of pages4
Publication statusPublished - 2003

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