Journal ArticleDOI
Topological defects in dispersed words and worlds around liquid crystals, or liquid crystal drops
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In this paper, the structure of dispersed liquid crystal droplets elasticity, surface tension, and surface anchoring is analyzed. And the equilibrium states of large droplets contain topologically stable defects, e.g., monopoles, boojums, etc.Abstract:
The structure of dispersed liquid crystal droplets elasticity, surface tension, and surface anchoring. For sufficiently large droplets with radius R K / W a, where K is the bulk elastic constant and W a is the anchoring coefficient, the surface terms prevail. As a result, the equilibrium states of large droplets contain topologically stable defects. Application of topological theorems to and hedgehogs is reviewed. is controlled by a balance of the bulk defect structures, e.g. monopoles, boojumsread more
Citations
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Journal ArticleDOI
Two-Dimensional Nematic Colloidal Crystals Self-Assembled by Topological Defects
Igor Muševič,Igor Muševič,Miha Škarabot,Miha Škarabot,Uroš Tkalec,Uroš Tkalec,Miha Ravnik,Miha Ravnik,S. Zumer,S. Zumer +9 more
TL;DR: It is shown that colloidal particles confined to a few-micrometer-thick layer of a nematic liquid crystal form two-dimensional crystal structures that are bound by topological defects.
Journal ArticleDOI
Physics of colloidal dispersions in nematic liquid crystals
TL;DR: In this article, the physics of colloidal dispersions in nematic liquid crystals is reviewed and three possible structures are identified and discussed in detail; the dipole, the Saturn-ring and the surface-ring configuration.
Journal ArticleDOI
Endotoxin-Induced Structural Transformations in Liquid Crystalline Droplets
I-Hsin Lin,Daniel S. Miller,Paul J. Bertics,Christopher J. Murphy,Juan J. de Pablo,Nicholas L. Abbott +5 more
TL;DR: The sensitivity of the LC to endotoxin was measured to change by six orders of magnitude with the geometry of theLC (droplet versus slab), supporting the hypothesis that interactions of endotoxin with topological defects in the LC mediate the response of the droplets.
Journal ArticleDOI
Chemical and biological sensing using liquid crystals
Rebecca J. Carlton,Jacob T. Hunter,Daniel S. Miller,Reza Abbasi,Peter C. Mushenheim,Lie Na Tan,Nicholas L. Abbott +6 more
TL;DR: This review focuses on principles for LC-based sensors that provide an optical output that selectively bind targeted species, thus leading to surface-driven changes in the organization of the LCs.
Journal ArticleDOI
Liquid Crystal Emulsions as the Basis of Biological Sensors for the Optical Detection of Bacteria and Viruses
TL;DR: This approach represents a novel means to sense and differentiate between types of bacteria and viruses based on their cell‐wall/envelope structure, paving the way for the development of a new class of LC microdroplet‐based biological sensors.
References
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Journal ArticleDOI
Field controlled light scattering from nematic microdroplets
TL;DR: In this article, the light scattering and electro-optic response of new material with display potential are investigated, which consist of microdroplets of nematic liquid crystals which are spontaneously formed in a solid polymer at the time of its polymerization.
Journal ArticleDOI
Novel Colloidal Interactions in Anisotropic Fluids
TL;DR: Small water droplets dispersed in a nematic liquid crystal exhibit a novel class of colloidal interactions, arising from the orientational elastic energy of the anisotropic host fluid, which can lead to novel mechanisms for colloid stabilization.
Journal ArticleDOI
Quantized vortices in superfluid He-3
M. M. Salomaa,G. E. Volovik +1 more
TL;DR: In this paper, the concept of broken symmetry is applied to investigate the quantized vortex lines in rotating superfluid vortices, and it is shown that vortex-core structures exhibit an experimentally observed first-order phase transition.