Previous surface force and nanotribology experiments have raised fascinating questions about the granularity of liquids in thin films; the transition from 3-dimensional to quasi 2-dimensional behavior; surface-induced phase transitions; effects of surface structure and heterogeneity on neighboring liquid; and crossover from continuum to molecular models of structure and dynamics in simple liquids. Similar questions arise in the behavior of complex liquids, including colloidal or nanoparticle dispersions that can be assembled into ordered arrays for novel devices. This session will examine such questions, which will inevitably arise in the fabrication of nanoparticle assemblies for optoelectronic devices, chemical sensors and biosensors, and in microfluidic devices.