%0 Journal Article %T The Influence of Long-Range Surface Forces on the Contact Angle of Nanometric Droplets and Bubbles %+ Laboratoire Charles Coulomb (L2C) %A Stocco, Antonio %A Moehwald, H. %< avec comité de lecture %Z L2C:15-198 %@ 0743-7463 %J Langmuir %I American Chemical Society %V 31 %N 43 %P 11835–11841 %8 2015-10-09 %D 2015 %R 10.1021/acs.langmuir.5b02922 %Z Chemical Sciences/Polymers %Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] %Z Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]Journal articles %X For a droplet or a bubble of dimensions below 100 nm, long-range surface forces such as long-range van der Waals forces can compete with capillarity, which leads to a size dependence of the contact angle. This is discussed in this work, where we also show that the effect cannot simply be described by a normalized line tension. We calculate interfacial profiles for typical values of van der Waals forces and discuss the role of long-range surface forces on the contact angle of nanobubbles and nanodrops. %G English %L hal-01225317 %U https://hal.science/hal-01225317 %~ CNRS %~ L2C %~ MIPS %~ UNIV-MONTPELLIER %~ UM-2015-2021