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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…

Materials Science · Physics 2008-07-18 Syed Arshad Hussain , Hugo Leeman , Debajyoti Bhattacharjee

This communication reports the surface pressure vs. area per molecule isotherm and Fluorescence Imaging Microscopic studies of the formation of domain structure in the mixed Langmuir monolayer of RhB and Stearic acid (SA) at the air water…

Materials Science · Physics 2011-06-21 S. A. Hussain , S. Chakraborty , D. Bhattacharjee

Many nematic liquid crystals are not able to form stable monolayers at the air/water interface because of the lack of a polar headgroup. A possible way to obtain a monomolecular film with these compounds is to incorporate them into host…

Soft Condensed Matter · Physics 2007-05-23 Valentina S. U. Fazio , L. Komitov , S. T. Lagerwall , D. Möbius

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…

Materials Science · Physics 2010-09-09 Shuxi Dai , Xingtang Zhang , Zuliang Du , Yabin Huang , Hongxin Dang

We have carried out experiments to probe the static and dynamic interfacial properties of $\beta$--casein monolayers spread at the air-buffer interface, and analysed these results in the context of models of weak polyampholytes.…

Soft Condensed Matter · Physics 2009-11-07 Pietro Cicuta , Ian Hopkinson

Many nematic liquid crystals (NLCs) lack a polar headgroup and thus are not able to form stable monolayers at the air/water (a/w) interface. A way to obtain monomolecular films of these compounds is to incorporate them into host monolayers…

Soft Condensed Matter · Physics 2007-05-23 F. Nannelli , V. S. U. Fazio , Y. Matsuzawa , L. Komitov , K. Ichimura

This paper reports the pi-A isotherms and spectroscopic characteristics of mixed Langmuir and Langmuir-Blodgett (LB) films of non-amphiphilic carbazole (CA) molecules mixed with polymethyl methacrylate (PMMA) and stearic acid (SA). pi-A…

Materials Science · Physics 2008-12-01 S. A. Hussain , P. K. Paul , D. Bhattacharjee

Insoluble surfactant monolayers at the air/water interface undergo a phase transition from a high-temperature homogeneous state to a low-temperature demixed state, where dilute and dense phases coexist. Alternatively, the transition from a…

Soft Condensed Matter · Physics 2007-05-23 X. Chatellier , D. Andelman

We have studied both experimentally and theoretically the surface pressure isotherms of copolymers of polystyrene-polyethyleneoxide (PS-PEO) at the air-water interface. The SCMF (single chain mean-field) theory provides a very good…

Soft Condensed Matter · Physics 2009-10-30 M. C. Fauré , P. Bassereau , M. A. Carignano , I. Szleifer , Y. Gallot , D. Andelman

In this work we used dissipative particle dynamics simulations to study the copolymerization process in the presence of spatial heterogeneities caused by incompatibility between polymerizing monomers. The polymer sequence details as well as…

Soft Condensed Matter · Physics 2017-09-26 Alexey A. Gavrilov , Alexander V. Chertovich

We investigate theoretically the behavior of proteins as well as other large macromolecules which are incorporated into amphiphilic monolayers at the air-water interface. We assume the monolayer to be in the coexistence region of the…

Soft Condensed Matter · Physics 2007-05-23 R. R. Netz , D. Andelman , H. Orland

We investigate the structure of mixed thin films composed of pentacene (PEN) and diindenoperylene (DIP) using X-ray reflectivity and grazing incidence X-ray diffraction. For equimolar mixtures we observe vanishing in-plane order coexisting…

Soft Condensed Matter · Physics 2015-06-11 A. Aufderheide , K. Broch , J. Novak , A. Hinderhofer , R. Nervo , A. Gerlach , R. Banerjee , F. Schreiber

We present a first-principles investigation of the electronic and optical properties of hybrid organic-inorganic interfaces consisting of MoS$_2$ monolayer and the $\pi$-conjugate molecules pyrene and pyridine. For both hybrid systems, the…

Materials Science · Physics 2021-12-16 Ignacio Gonzalez Oliva , Fabio Caruso , Pasquale Pavone , Claudia Draxl

Grazing Incidence X-ray Diffraction (GIXD) studies of monolayers of biomolecules at the air-water interface give quantitative information of in-plane packing, coherence lengths of the ordered diffracting crystalline domains and the…

We probe the temperature dependence of friction at the interface between a glassy poly(methylmethacrylate) lens and a flat substrate coated with a methyl-terminated self-assembled monolayer. The monolayer exhibits density defects which act…

Soft Condensed Matter · Physics 2007-12-06 Lionel Bureau

Effects of chain length compatibility and molecular ratio on the two-dimensional crystallization of a binary mixed surfactant system with non-identical molecular size and its consequence on retardation to water evaporation are described via…

Soft Condensed Matter · Physics 2025-03-25 Kulsuma Begum , Abhijeet Das , Dinesh O. Shah , Sanjeev Kumar

Here we report the monolayer characteristics of a biodegradable polymer chitosan using Langmuir-Blodgett film technique. Usually chitosan has not form stable monolayer film. However they form stable monolayer film when mixed with fatty…

Materials Science · Physics 2015-03-24 Jayasree Nath , R. K. Nath , Adrita Chakraborty , Syed Arshad Hussain

Phosphorene, a monolayer of black phosphorus (BP), is an elemental two-dimensional material with interesting physical properties, such as high charge carrier mobility and exotic anisotropic in-plane properties. To fundamentally understand…

Mesoscale and Nanoscale Physics · Physics 2019-12-04 Yangjin Lee , Sol Lee , Jun-Yoeong Yoon , Jinwoo Cheon , Hu Young Jeong , Kwanpyo Kim

We carry out a computational study on the geometric and electronic properties of multi-layers of silicene in different stacking configurations using a state-of-art abinitio density functional theory based calculations. In this work we…

Materials Science · Physics 2015-02-26 C. Kamal , Aparna Chakrabarti , Arup Banerjee , S. K. Deb

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…

Fluid Dynamics · Physics 2009-11-19 Siyoung Q. Choi , Todd M. Squires
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