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The University of Nebraska- Lincoln (UNL), under Nebraska MRSEC’s leadership, held its sixth Conference for Undergraduate Women in Physical Sciences, WoPhyS, on November 6-8, 2014.

Princeton researchers have demonstrated the physical principles of capillarity, including examples of how capillary forces structure multiphase condensates and remodel biological substrates. As with other mechanisms of intracellular force generation (e.g. molecular motors), capillary forces can influence biological processes. Identifying the biomolecular determinants of condensate capillarity represents an exciting frontier, bridging soft matter physics and cell biology.

Nanocrystal gelation is a strategy to translate exceptional properties inherent to nanoscale building blocks into multiscale architectures and devices. However, available gelation methods are not easily adaptable across broad classes of nanocrystal systems since assembly is strongly reliant on specific surface chemistries.

This work reports the first experimental realization of nanoparticles templated at the interface of liquid crystals into reconfigurable, periodic structures. We establish that nanoparticles can segregate into highly ordered stripes, with tunable organization and thickness, forming the basis for the assembly of patchy colloids and nanowires. Our technique is advantageous over other methods, as the resultant assemblies can dynamically respond to changes within the underlying liquid crystal.

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