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This communication reports the formation of complex Langmuir monolayer at the air-water interface by charge transfer types of interaction with the water soluble N- cetyl N, N, N trimethyl ammonium bromide (CTAB) molecules doped with…

材料科学 · 物理学 2008-12-04 S. Biswas , R. K. Nath , D. Bhattacharjee , Syed Arshad Hussain

This communication reports the formation of complex Langmuir monolayer at the air-water interface with the water-soluble -trimethyl ammonium bromide (CTAB) molecules when interacted with the stearic acid (SA) molecules. The reaction…

材料科学 · 物理学 2008-12-04 Syed Arshad Hussain , S. Biswas , R. K. Nath , S. Deb , D. Bhattacharjee

Spectra of octadecylamine (ODA) Langmuir monolayers and egg phosphatidylcholine (PC)/ODA-mixed monolayers at the air-water interface have been acquired. The organization of the monolayers has been characterized by surface pressure-area…

材料科学 · 物理学 2010-09-09 Shuxi Dai , Xingtang Zhang , Zuliang Du , Yabin Huang , Hongxin Dang

Stripe-like domains of Langmuir monolayers formed by surfactants with partially fluorinated lipid anchors (F-alkyl lipids) are observed at the gas-liquid phase coexistence. The average periodicity of the stripes, measured by fluorescence…

软凝聚态物质 · 物理学 2008-06-23 Matthias F. Schneider , David Andelman , Motomu Tanaka

At the air/water interface, 4,-8-alkyl[1,1,-biphenyl]-4-carbonitrile (8CB) domains with different thicknesses coexist in the same Langmuir film, as multiple bilayers on a monolayer. The edge dislocation at the domain boundary leads to line…

软凝聚态物质 · 物理学 2009-11-13 Lu Zou , Ji Wang , Prem Basnet , Elizabeth K. Mann

In the present communication we report the monolayer characteristics of pyrene mixed with stearic acid (SA) at the air-water interface. The monolayer properties are investigated by recording and analyzing the surface pressure-area per…

材料科学 · 物理学 2009-11-13 Md. N. Islam , D. Bhattacharjee , Syed Arshad Hussain

A Langmuir film is a molecularly thin film on the surface of a fluid; we study the evolution of a Langmuir film with two co-existing fluid phases driven by an inter-phase line tension and damped by the viscous drag of the underlying…

软凝聚态物质 · 物理学 2009-11-13 J. R. Wintersmith , L. Zou , A. J. Bernoff , J. C. Alexander , J. A. Mann , E. E. Kooijman , E. K. Mann

Molecules at the air-water interface often form inhomogeneous layers in which domains of different densities are separated by sharp interfaces. Complex interfacial pattern formation may occur through the competition of short- and long-range…

patt-sol · 物理学 2009-10-30 David K. Lubensky , Raymond E. Goldstein

Domains in Langmuir monolayers support a texture that is the two-dimensional version of the feature known as a boojum. Such a texture has a quantifiable effect on the shape of the domain with which it is associated. The most noticeable…

软凝聚态物质 · 物理学 2009-10-30 Jiyu Fang , Ellis Teer , Charles M. Knobler , Kok-Kiong Loh , Joseph Rudnick

Finite domains of a Langmuir monolayer in a phase with tilted molecules can be modeled by a simple elastic free energy of an XY order parameter with isotropic and anisotropic line tension terms. The domains can and often do contain…

软凝聚态物质 · 物理学 2016-08-31 David Pettey , T. C. Lubensky

Langmuir monolayers are advantageous systems used to investigate how lipid membranes get involved in the physiology of many living structures, such as collapse phenomena in alveolar structures. Much work focuses on characterizing the…

软凝聚态物质 · 物理学 2024-01-22 A. R. Carotenuto , A. Gaffney , K. Y. C. Lee , L. Pocivavsek , M. Fraldi , L. Deseri

Supported Lipid Bilayers (SLBs) are model membranes formed at solid substrate surfaces. This architecture renders the membrane experimentally accessible to surface sensitive techniques used to study their properties, including Atomic Force…

生物物理 · 物理学 2019-11-19 James A. Goodchild , Danielle L. Walsh , Simon D. Connell

In this paper an information geometric approach has been proposed to describe the two-dimensional (2d) phase transition of the first order in a monomolecular layer (monolayer) of amphiphilic molecules deposited on air/water interface. The…

软凝聚态物质 · 物理学 2015-12-09 V. Balan , H. V. Grushevskaya , N. G. Krylova , M. Neagu

A great variety of biologically relevant monolayers present phase coexistence characterized by domains formed by lipids in an ordered phase state dispersed in a continuous, disordered phase. The difference in surface densities between these…

生物物理 · 物理学 2018-02-19 Elena Rufeil Fiori , Natalia Wilke , Adolfo J. Banchio

Phospholipid monolayers at the air-water interface serve as model systems for various biological interfaces, e.g. lung surfactant layers and outer leaflets of cell membranes. Although the dynamical (viscoelastic) properties of these…

流体动力学 · 物理学 2009-11-19 Siyoung Q. Choi , Todd M. Squires

The assembly of colloidal particles at liquid/liquid or air/liquid interfaces is a versatile procedure to create microstructured monolayers and study their behavior under compression. When combined with soft and deformable particles such as…

Mono-layers of stearic and behenic acids and mixtures of them in different proportions, deposited with the Langmuir-Blodgett technique, were used to study the alignment and the alignment dynamics in nematic liquid crystal cells. A…

软凝聚态物质 · 物理学 2009-10-30 V. S. U. Fazio , L. Komitov , S. T. Lagerwall

We study the conformation of a heterogeneous surfactant monolayer at a fluid-fluid interface, near a boundary between two lateral regions of differing elastic properties. The monolayer attains a conformation of shallow, steep `mesas' with a…

软凝聚态物质 · 物理学 2007-05-23 H. Diamant , T. A. Witten , A. Gopal , K. Y. C. Lee

Molecular aggregation and monolayer characteristics of non-amphiphilic p-terphenyl (TP) mixed with either polymethyl methacrylate (PMMA) or stearic acid (SA) at the air-water interface were investigated. The miscibility of the two…

材料科学 · 物理学 2008-07-18 Syed Arshad Hussain , Hugo Leeman , Debajyoti Bhattacharjee

X-ray fluorescence spectra from monovalent ions (Cs+) that accumulate from dilute solutions to form an ion-rich layer near a charged Langmuir monolayer are presented. For the salt solution without the monolayer, the fluorescence signals…

软凝聚态物质 · 物理学 2009-05-06 Wei Bu , David Vaknin
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