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- Mesophase abstract "In physics, a mesophase is a state of matter intermediate between liquid and solid. Gelatin is a common example of a partially ordered structure in a mesophase. Further, biological structures such as the lipid bilayers of cell membranes exemplify the mesophase state.Georges Friedel (1922) called attention to the "mesomorphic states of matter" in his scientific assessment of observations of the so-called liquid crystals. Everyone knows a crystal is solid and to crystallize is to make solid. The oxymoron of the liquid crystal is resolved through the notion of mesophases. The observations noted an optic axis persisting in materials that had been melted and had begun to flow. But the catch-phrase of the liquid crystal caught on, even when displaced in technical writing.For example, in The Physics of Liquid Crystals the mesophases are introduced from the beginning:...certain organic materials do not show a single transition from solid to liquid, but rather a cascade of transitions involving new phases. The mechanical properties and the symmetry properties of these phases are intermediate between those of a liquid and those of a crystal. For this reason they have often been called liquid crystals. A more proper name is ‘mesomorphic phases’ (mesomorphic: intermediate form)Further, "The classification of mesophases (first clearly set out by G. Friedel in 1922) is essentially based on symmetry."Molecules that demonstrate mesophases are called mesogens.In technology, molecules in which the optic axis is subject to manipulation during a mesophase have become commercial products as they can be used to manufacture display devices. The susceptibility of the optic axis, called a director, to an electric or magnetic field produces the potential for an optical switch. Methods used include the Freedericksz transition and the twisted nematic field effect. From early liquid crystal displays the buying public has embraced the low-power optical switch facility of mesophases with director.Consider a solid consisting of a single molecular species and subjected to melting. Ultimately it is rendered to an isotropic state classically referred to as liquid. Mesophases occur before then when an intermediate state of order is still maintained as in the nematic, smectic, and columnar phases of liquid crystals. Mesophases thus exhibit anisotropy. For instance, LCD devices work on the optical switch principle that obscures light or lets it pass. This switch is turned off and on by an electric field applied to the mesogen with director. The response of the director to the field is expressed with viscosity parameters, as in the Ericksen-Leslie theory in continuum mechanics developed by Jerald Ericksen and Frank Matthews Leslie.Mesophase phenomena are important in many scientific fields. The publishing arms of professional societies have academic journals as needed. For instance, the American Chemical Society has both Macromolecules and Langmuir, while Royal Society of Chemistry has Soft Matter, and American Physical Society has Physical Review E, and Elsevier has Advances in Colloid and Interface Science.".
- Mesophase wikiPageExternalLink www.softmatterworld.org.
- Mesophase wikiPageExternalLink 1212.
- Mesophase wikiPageID "14147401".
- Mesophase wikiPageLength "4924".
- Mesophase wikiPageOutDegree "55".
- Mesophase wikiPageRevisionID "594268677".
- Mesophase wikiPageWikiLink Advances_in_Colloid_and_Interface_Science.
- Mesophase wikiPageWikiLink American_Chemical_Society.
- Mesophase wikiPageWikiLink American_Physical_Society.
- Mesophase wikiPageWikiLink Anisotropy.
- Mesophase wikiPageWikiLink Cambridge_University_Press.
- Mesophase wikiPageWikiLink Category:Condensed_matter_physics.
- Mesophase wikiPageWikiLink Category:Continuum_mechanics.
- Mesophase wikiPageWikiLink Category:Liquid_crystals.
- Mesophase wikiPageWikiLink Category:Phase_transitions.
- Mesophase wikiPageWikiLink Category:Phases_of_matter.
- Mesophase wikiPageWikiLink Category:Soft_matter.
- Mesophase wikiPageWikiLink Cell_membrane.
- Mesophase wikiPageWikiLink Columnar_phase.
- Mesophase wikiPageWikiLink Condensed_matter_physics.
- Mesophase wikiPageWikiLink Continuum_mechanics.
- Mesophase wikiPageWikiLink Crystal.
- Mesophase wikiPageWikiLink Crystallization.
- Mesophase wikiPageWikiLink Crystallize.
- Mesophase wikiPageWikiLink Display_device.
- Mesophase wikiPageWikiLink Electric_field.
- Mesophase wikiPageWikiLink Elsevier.
- Mesophase wikiPageWikiLink Frank_Matthews_Leslie.
- Mesophase wikiPageWikiLink Freedericksz_transition.
- Mesophase wikiPageWikiLink Fréedericksz_transition.
- Mesophase wikiPageWikiLink Gelatin.
- Mesophase wikiPageWikiLink Georges_Friedel.
- Mesophase wikiPageWikiLink Isotropic.
- Mesophase wikiPageWikiLink Isotropy.
- Mesophase wikiPageWikiLink Jerald_Ericksen.
- Mesophase wikiPageWikiLink LCD.
- Mesophase wikiPageWikiLink Langmuir_(journal).
- Mesophase wikiPageWikiLink Lipid_bilayer.
- Mesophase wikiPageWikiLink Liquid.
- Mesophase wikiPageWikiLink Liquid-crystal_display.
- Mesophase wikiPageWikiLink Liquid_crystal.
- Mesophase wikiPageWikiLink Liquid_crystal_display.
- Mesophase wikiPageWikiLink Macromolecules_(journal).
- Mesophase wikiPageWikiLink Melting.
- Mesophase wikiPageWikiLink Mesogen.
- Mesophase wikiPageWikiLink Optic_axis.
- Mesophase wikiPageWikiLink Optical_axis.
- Mesophase wikiPageWikiLink Order_and_disorder_(physics).
- Mesophase wikiPageWikiLink Oxford_University_Press.
- Mesophase wikiPageWikiLink Oxymoron.
- Mesophase wikiPageWikiLink Physical_Review_E.
- Mesophase wikiPageWikiLink Physics.
- Mesophase wikiPageWikiLink Royal_Society_of_Chemistry.
- Mesophase wikiPageWikiLink Sivaramakrishna_Chandrasekhar.
- Mesophase wikiPageWikiLink Soft_Matter_(journal).
- Mesophase wikiPageWikiLink Sol-gel.
- Mesophase wikiPageWikiLink Solid.
- Mesophase wikiPageWikiLink Springer_Science+Business_Media.
- Mesophase wikiPageWikiLink Springer_Verlag.
- Mesophase wikiPageWikiLink State_of_matter.
- Mesophase wikiPageWikiLink Twisted_nematic_field_effect.
- Mesophase wikiPageWikiLink Viscosity.
- Mesophase wikiPageWikiLink Walter_Noll.
- Mesophase wikiPageWikiLinkText "Mesophase".
- Mesophase wikiPageWikiLinkText "mesophase".
- Mesophase hasPhotoCollection Mesophase.
- Mesophase wikiPageUsesTemplate Template:Reflist.
- Mesophase subject Category:Condensed_matter_physics.
- Mesophase subject Category:Continuum_mechanics.
- Mesophase subject Category:Liquid_crystals.
- Mesophase subject Category:Phase_transitions.
- Mesophase subject Category:Phases_of_matter.
- Mesophase subject Category:Soft_matter.
- Mesophase hypernym State.
- Mesophase type PopulatedPlace.
- Mesophase type Liquid.
- Mesophase type Mechanic.
- Mesophase type Physic.
- Mesophase type Process.
- Mesophase type Transition.
- Mesophase comment "In physics, a mesophase is a state of matter intermediate between liquid and solid. Gelatin is a common example of a partially ordered structure in a mesophase. Further, biological structures such as the lipid bilayers of cell membranes exemplify the mesophase state.Georges Friedel (1922) called attention to the "mesomorphic states of matter" in his scientific assessment of observations of the so-called liquid crystals. Everyone knows a crystal is solid and to crystallize is to make solid.".
- Mesophase label "Mesophase".
- Mesophase sameAs Mésophase.
- Mesophase sameAs m.0gmbs6v.
- Mesophase sameAs Мезофаза.
- Mesophase sameAs Q3333391.
- Mesophase sameAs Q3333391.
- Mesophase wasDerivedFrom Mesophase?oldid=594268677.
- Mesophase isPrimaryTopicOf Mesophase.