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lyotropic
lyotropic, a. Physical Chem. (laɪəˈtrɒpɪk, -ˈtrəʊpɪk) [f. lyotrope a. + -ic: see -tropic.] 1. Associated with the change of internal pressure of a solution from that of the solvent which is caused by the solute. lyotropic series, a series in which ions are arranged in order of their lytropic effects...
Oxford English Dictionary
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Lyotropic liquid crystal
A mixture of soap and water is an everyday example of a lyotropic liquid crystal. Other examples include DNA and Kevlar, which dissolve in sulfuric acid to give a lyotropic phase.
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Lyotropy
Lyotropic numbers, Nlyo, based on this work appear to be related to the charge density of the ions. Another important lyotropic effect is the pairing of ions to charged headgroups of biological molecules.
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lyotrope
lyotrope, a. Physical Chem. (ˈlaɪətrəʊp) [ad. G. lyotrop (H. Freundlich Kapillarchemie (1909) 54), f. Gr. λύ-ειν to loosen + τροπή turn, turning.] = lyotropic a. 1.1915 W. W. Taylor Chem. Colloids i. 8 Among the reactions in which this lyotrope influence has been recognised are the following: the ca...
Oxford English Dictionary
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mesomorphism
mesomorphism Physical Chem. (mɛsəʊˈmɔːfɪz(ə)m, miːzəʊ-) [f. mesomorphic a. + -ism.] The state of being mesomorphic.1933 [see lyotropic a. 2]. 1969 J. S. Dave et al. in G. H. Brown et al. Liquid Crystals 2 II. 229 The authors have investigated mixed mesomorphism in the binary mixtures wherein one of ...
Oxford English Dictionary
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Tactoid
After that, tactoids have been found in the phase transition processes in many lyotropic liquid crystalline substances, such as tobacco mosaic virus, polypeptides
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thermotropic
thermotropic, a. Bot. (θɜːməʊˈtrɒpɪk, -ˈtrəʊpɪk) [f. Gr. θερµο-, thermo- + -τροπ-ος turning + -ic: cf. heliotropic.] 1. Turning or bending under the influence of heat; of, pertaining to, or exhibiting thermotropism.1885 G. L. Goodale Physiol. Bot. (1892) 394 Curvatures dependent upon temperature are...
Oxford English Dictionary
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Liquid-crystal polymer
In solid form the main example of lyotropic LCPs is the commercial aramid known as Kevlar. Lyotropic systems
Lyotropic main chain LCPs have rigid mesogen cores (like aromatic rings) in the backbones.
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Ammonium perfluorononanoate
Ammonium perfluorononanoate (APFN) is an anionic surfactant that in water forms liquid crystalline phases (Lyotropic liquid crystal).
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van't Hoff
van't Hoff Chem. (vænt ˈhɒf) Also Van't Hoff. The name of J. H. van't Hoff (1852–1911), Dutch chemist, used attrib. and in the possessive to designate rules or hypotheses put forward by him with reference to: a. Stereochemical properties of molecules.1888 Jrnl. Chem. Soc. LIV. 597 (heading) Investig...
Oxford English Dictionary
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Hexagonal phase
A hexagonal phase of lyotropic liquid crystal is formed by some amphiphilic molecules when they are mixed with water or another polar solvent.
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Formylmethanofuran—tetrahydromethanopterin N-formyltransferase
Methanopyrus kandleri (which has an optimum growth temperature 98 degrees C) is a hyperthermophilic enzyme that is absolutely dependent on the presence of lyotropic
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Isotropic formulations
Isotropic formulations are thermodynamically stable microemulsions possessing lyotropic liquid crystal properties.
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Biaxial nematic
See also
Liquid crystal
Liquid crystal display
Liquid crystal polymer
Lyotropic liquid crystal
Plastic crystallinity
Smart glass
Thermochromics
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Water-in-water emulsion
Unlike conventional lyotropic liquid crystals which consist of oily molecules such as 5CB, DSCG molecules are not amphiphilic, but entirely water-soluble In comparison, this water-in-water emulsion consists of Polymer-Dispersed Lyotropic Liquid Crystals, where the lyotropic liquid crystal is DSCG molecules
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