The Influence of Long-Range Surface Forces on the Contact Angle of Nanometric Droplets and Bubbles Auteur(s): Stocco A., Moehwald H. (Article) Publié: Langmuir, vol. 31 p.11835–11841 (2015) Texte intégral en Openaccess : Ref HAL: hal-01225317_v1 DOI: 10.1021/acs.langmuir.5b02922 WoS: 000364354800011 Exporter : BibTex | endNote 9 Citations Résumé: 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. |