String defects connecting pairs of half-integer disclinations and tilting transition of a Langmuir monolayer

Article Abstract:

The static dynamic string defect textures connecting pairs of half-integer disclinations is observed by Brewster angle microscopy in the solid phase of pentacosadiynoic acid Langmuir monolayers. The static defect structures appear coexisting with two kinds of point disclinations that have four and two black brushes.

Florida, Observations, Phase transformations (Statistical physics), Phase transitions (Physics)

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Laser-induced local collapse in a Langmuir monolayer

Article Abstract:

The local collapse of a two-dimensional Langmuir monolayer locally heated by an infrared laser is reported. Results predict that local collapse could be induced if the collapse pressure of the monolayer decreases faster with temperature than with the surface tension of the pure air/water interface.

Surface active agents, Surface Active Agent Manufacturing, Monomolecular films, Methyl groups, Methyl compounds

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Division and fusion, extension, adhesion, and retraction of vesicles created through Langmuir monolayer collapse: Cell-like behavior

Article Abstract:

A variety of spontaneous motions of vesicles observed under the nonequilibrium condition which exhibit biological cell-like behavior such as division, fusion and migration is reported. The directional motion is characterized by three distinct steps namely, extension, adhesion, and retraction.

Analysis, Cell division, Chemical reactions

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