Journal Article10.1140/EPJST/E2013-02075-X
Phase behaviour of lyotropic liquid crystals in external fields and confinement
A B G M Leferink op Reinink,E. van den Pol,Andrei V. Petukhov,Gert Jan Vroege,Henk N. W. Lekkerkerker +4 more
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TL;DR: In this article, the influence of external fields on the phase behavior of colloidal liquid crystals is discussed, including the earth's gravity, electric and magnetic fields, and their effects on the behavior of the liquid crystal phase transitions.
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Abstract: This mini-review discusses the influence of external fields on the phase behaviour of lyotropic colloidal liquid crystals. The liquid crystal phases reviewed, formed in suspensions of highly anisotropic particles ranging from rod- to board- to plate-like particles, include nematic, smectic and columnar phases. The external fields considered are the earth gravitational field and electric and magnetic fields. For electric and magnetic fields single particle alignment, collective reorientation behaviour of ordered phases and field-induced liquid crystal phase transitions are discussed. Additionally, liquid crystal phase behaviour in various confining geometries, e.g. slit-pore, circular and spherical confinement will be reviewed.
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Citations
Simplified Onsager theory for isotropic-nematic phase equilibria of length polydisperse hard rods
TL;DR: In this paper, the phase behavior of thin hard rods with length polydispersity is analyzed based on a simplified Onsager theory, obtained by truncating the series expansion of the angular dependence of the excluded volume.
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Supramolecular Self-Assembly into Biofunctional Soft Nanotubes: From Bilayers to Monolayers.
TL;DR: Novel biologically important functions of the obtained soft nanotubes are discussed in terms of protein refolding, drug nanocarriers, lectin detection, a chiral inducer for achiral polymers, the tailored fabrication of polydopamine, and spontaneous nematic alignment.
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Introduction to colloidal dispersions in external fields
TL;DR: In this paper, the authors reviewed the progress in the research area of colloidal dispersions in external fields within the last few years and compared real-space experiments, computer simulations and statistical theories.
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Particle-resolved topological defects of smectic colloidal liquid crystals in extreme confinement.
TL;DR: In this paper, the intrinsic structure of smectic colloidal layers is explored by the interplay between entropy and an imposed external topology, and a plethora of competing states are found with nontrivial defect structures.
Metal-Organic Framework superstructures with long-ranged orientational order via E-field assisted liquid crystal assembly
Kamal Allahyarli,Michael R. Reithofer,Fei Cheng,Adam J. Young,Endre Kiss,Tristan Tsai Yuan Tan,Alexander Prado-Roller,Jia Min Chin +7 more
TL;DR: In this paper, an E-field assisted liquid crystal assembly strategy was proposed to control MOF orientation and packing side-steps the traditional requirements of particle monodispersity, shape homogeneity and high aspect ratios typical of colloidal and liquid crystal assemblies, and is applicable even to polydispersed MOF crystals.
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Magnetic field alignment of liquid crystals for fast display applications
Abstract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Structure property correlation in lithium borophosphate glasses
TL;DR: Findings are rationalised by a model of structure evolution with varying B2O3 content Y and an empirical model quantifying the effect of the various structural building blocks on the ionic conductivity in this mixed glass former system.
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