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- Argonne National LaboratoryUS84 papers
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5 papers · 2 filters
Command of active matter by topological defects and patterns
Chenhui Peng, Taras Turiv, Yubing Guo +2
Self-propelled bacteria are marvels of nature with a potential to power dynamic materials and microsystems of the future. The challenge is in commanding their chaotic behavior. By…
Controlling placement of nonspherical (boomerang) colloids in nematic cells with photopatterned director
Chenhui Peng, Taras Turiv, Rui Zhang +5
Placing colloidal particles in predesigned sites represents a major challenge of the current state-of-the-art colloidal science. Nematic liquid crystals with spatially varying dire…
Control of colloidal placement by modulated molecular orientation in nematic cells
Chenhui Peng, Taras Turiv, Yubing Guo +3
Colloids self-assemble into various organized superstructures determined by particle interactions. There is a tremendous progress in both the scientific understanding and applicati…
Light scattering study of the "pseudo-layer" compression elastic constant in a twist-bend nematic liquid crystal
Z. Parsouzi, Shokir A. Pardaev, C. Welch +9
The nematic twist-bend (TB) phase, exhibited by certain achiral thermotropic liquid crystalline (LC) dimers, features a nanometer-scale, heliconical rotation of the average molecul…
Gradient-driven diffusion and pattern formation in crowded mixtures
Prithviraj Nandigrami, Brandy Grove, Andrew Konya +1
Gradient-driven diffusion in crowded, multicomponent mixtures is a topic of high interest because of its role in biological processes such as transport in cell membranes. In partia…