Particle and Particle-Surfactant Mixtures at Fluid Interfaces: Assembly, Morphology, and Rheological Description
(a) Sketch of the contact angle, , for a particle at a fluid interface. is the interfacial tension particle-bottom fluid, the interfacial tension particle-upper phase, the interfacial tension fluid-fluid, and the line tension associated with the contact line of the particle with the interface. (b) Sketch of the position of a particle, with increasing hydrophobicity at the interface. Reproduced from , Copyright 2014, with permission from Elsevier.