Self-Assembly of Microscale Objects at a Liquid/Liquid Interface through Lateral Capillary Forces
Original Entry: Ian Burgess Fall 2009
N. Bowden, F. Arias, T. Deng, G.M. Whitesides, "Self-Assembly of Microscale Objects at a Liquid/Liquid Interface through Lateral Capillary Forces", Langmuir 17, 1757-1765 (2001).
This paper probes the effects of capillary forces on objects at the interface between water and a hydrophobic liquid (perfluorodecalin). The forces are probed by coating different faces of hexagonal microparticles with either hydrophobic or hydrophilic substances. One of the main results of this study is an examination of the size-dependence of the relative strength of capillary forces compared to other types of forces in the system such as buoyancy.