ArticleProceedings of the National Academy of Sciences of the United States of America2015
Chiral structures from achiral liquid crystals in cylindrical capillaries.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Planar and Homeotropic Liquid Crystal Alignment on 3D-Nanoprinted Layers and Microstructures.ACS applied materials & interfaces · 2026Article
- Confinement-induced chirality in phase-separated achiral polymer solutions.Science advances · 2025Article
- Flow-induced periodic chiral structures in an achiral nematic liquid crystal.Nature communications · 2024Article
- Sunset Yellow Confined in Curved Geometry: A Microfluidic Approach.Langmuir : the ACS journal of surfaces and colloids · 2023Article
- Quantitative volatile organic compound sensing with liquid crystal core fibers.Cell reports. Physical science · 2021Article
- Layering transitions and metastable structures of cholesteric liquid crystals in cylindrical confinement.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Periodic Arrays of Chiral Domains Generated from the Self-Assembly of Micropatterned Achiral Lyotropic Chromonic Liquid Crystal.ACS central science · 2020Article
- Extremely small twist elastic constants in lyotropic nematic liquid crystals.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Geodesic fibrations for packing diabolic domains.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Microfluidic control over topological states in channel-confined nematic flows.Nature communications · 2020Article
- Achiral symmetry breaking and positive Gaussian modulus lead to scalloped colloidal membranes.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Using chiral tactoids as optical probes to study the aggregation behavior of chromonics.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Analytical description of 2D magnetic Freedericksz transition in a rectangular cell of a nematic liquid crystal.The European physical journal. E, Soft matter · 2016Article
- Straining soft colloids in aqueous nematic liquid crystals.Proceedings of the National Academy of Sciences of the United States of America · 2016Article
- Spontaneous emergence of chirality in achiral lyotropic chromonic liquid crystals confined to cylinders.Nature communications · 2015Article
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6 authors.
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Abstract
We study chiral symmetry-broken configurations of nematic liquid crystals (LCs) confined to cylindrical capillaries with homeotropic anchoring on the cylinder walls (i.e., perpendicular surface alignment). Interestingly, achiral nematic LCs with comparatively small twist elastic moduli relieve bend and splay deformations by introducing twist deformations. In the resulting twisted and escaped radial (TER) configuration, LC directors are parallel to the cylindrical axis near the center, but to attain radial orientation near the capillary wall, they escape along the radius through bend and twist distortions. Chiral symmetry-breaking experiments in polymer-coated capillaries are carried out using Sunset Yellow FCF, a lyotropic chromonic LC with a small twist elastic constant. Its director configurations are investigated by polarized optical microscopy and explained theoretically with numerical calculations. A rich phenomenology of defects also arises from the degenerate bend/twist deformations of the TER configuration, including a nonsingular domain wall separating domains of opposite twist handedness but the same escape direction and singular point defects (hedgehogs) separating domains of opposite escape direction. We show the energetic preference for singular defects separating domains of opposite twist handedness compared with those of the same handedness, and we report remarkable chiral configurations with a double helix of disclination lines along the cylindrical axis. These findings show archetypally how simple boundary conditions and elastic anisotropy of confined materials lead to multiple symmetry breaking and how these broken symmetries combine to create a variety of defects.
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