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Nature is remarkably adept at using interfaces to build structures, encapsulate reagents, and regulate biological processes. Inspired by Nature, we describe flexible polymer-based ribbons, termed "mesoscale polymers" (MSPs), to modulate…

Soft Condensed Matter · Physics 2021-08-23 Dylan M. Barber , Zhefei Yang , Lucas Prevost , Olivia du Roure , Anke Lindner , Todd Emrick , Alfred J. Crosby

Synthetic Laponite-clay particles with platelet-like shape display strong aging when dispersed in aqueous solutions, preventing latter from reaching their natural liquid-crystalline equilibrium state. Here we introduce a facile method that…

Soft Condensed Matter · Physics 2017-10-09 Peicheng Xu , Yang Lan , Zhongyang Xing , Erika Eiser

Understanding interactions between microparticles and lipid membranes is of increasing importance, especially for unraveling the influence of microplastics on our health and environment. Here, we study how a short-ranged adhesive force…

Soft Condensed Matter · Physics 2017-10-11 Casper van der Wel , Doris Heinrich , Daniela J. Kraft

Interfaces such as grain boundaries in polycrystalline as well as heterointerfaces in multiphase solids are ubiquitous in materials science and engineering. Far from being featureless dividing surfaces between neighboring crystals,…

Materials Science · Physics 2024-01-23 Aurélien Vattré

Polyelectrolyte-surfactant complexes (PESCs) have long been employed as oil-in-water (o/w) emulsions stabilizers, but never in the structure of colloidal complex coacervates providing a Pickering effect. The complexed state of PESCs could…

Soft Condensed Matter · Physics 2021-05-10 Sandrine Laquerbe , Alain Carvalho , Marc Schmutz , Alexandre Poirier , Niki Baccile , Ghazi Ben Messaoud

Comparative study of thin film Cholesteric Liquid Crystal (CLC) lasers made from different materials and optically pumped by external solid state laser reveals a striking dependence of lasing behaviour (ranging from single mode at the edge…

Materials Science · Physics 2021-06-29 P. V. Shibaev , A. Roslyak , P. Fessatidis

Bacterial attachment to a fluid interface can lead to the formation of a film with physicochemical properties that evolve with time. We study the time evolution of interface (micro)mechanics for interfaces between oil and bacterial…

Soft Condensed Matter · Physics 2015-03-26 Liana Vaccari , Daniel Allan , Nima Sharifi-Mood , Aayush Singh , Robert Leheny , Kathleen Stebe

Two-dimensional (2D) compounds provide unique building blocks for novel layered devices and hybrid photonic structures. However, large surface-to-volume ratio in thin films enhances the significance of surface interactions and charging…

Characterizing the anchoring properties of smectic liquid crystals (LCs) in contact with bacterial solutions is crucial for developing biosensing platforms. In this study, we investigate the anchoring properties of a smectic LC when exposed…

Soft Condensed Matter · Physics 2023-06-23 Vajra S. Badha , Tagbo H. R. Niepa , Mohamed Amine Gharbi

Effect of microstructures and interactions on segmental dynamics in polyethylene glycol (PEG) solution in water is probed with macro-scale oscillatory rheology and micro-scale diffusion of a fluorescent probe. PEG solution fluorescence…

Soft Condensed Matter · Physics 2020-07-07 Shipra Bhatt , Debjani Bagchi

The role of electrostatics on the interfacial properties of polyelectrolyte microgels has been discussed controversially in the literature. It is not yet clear if, or how, Coulomb interactions affect their behavior under interfacial…

Polyelectrolyte multilayers (PEM) in combination with good electrolyte solvents, e.g., ionic liquids (ILs) are potential candidates for the new generation of electrochemical separators. Swelling PEM with aqueous IL solutions is one way to…

Chemical Physics · Physics 2018-11-20 Nagma Parveen , Pritam Kumar Jana , Monika Schoenhoff

Colloidal particles suspended in liquid crystals can exhibit various effective anisotropic interactions that can be tuned and utilized in self-assembly processes. We simulate a two-dimensional system of hard disks suspended in a solution of…

Soft Condensed Matter · Physics 2020-07-30 David Müller , Tobias A. Kampmann , Jan Kierfeld

Optical microscopy and multi-particle tracking are used to investigate the cross-correlated diffusion of quasi two-dimensional (2D) colloidal particles near an oil-water interface. It is shown that the effect of the interface on correlated…

Soft Condensed Matter · Physics 2015-06-15 Wei Zhang , Song Chen , Na Li , Jiazheng Zhang , Wei Chen

A systematically designed study has been conducted to understand and clearly demarcate the degree of contribution by the constituting elements to the surface tension of nanocolloids. The effects of elements such as surfactants, particles…

Soft Condensed Matter · Physics 2016-10-20 A R Harikrishnan , Purbarun Dhar , PK Agnihotri , Sateesh Gedupudi , Sarit K Das

The structure of an adsorption octadecanamide film at the planar toluene-water interface is studied by X-ray reflectometry using synchrotron radiation with photon energy of 15 keV. The electron density (polarizability) profiles, according…

Soft Condensed Matter · Physics 2020-04-22 Aleksey M. Tikhonov , Yurii O. Volkov

In this article is proposed the general approach to determination the character of the interaction between colloidal particles in a different liquid crystals. The main idea of this approach are in the presentation of the colloidal particle…

Soft Condensed Matter · Physics 2013-11-11 B. I. Lev

Using nCB films adsorbed on MoS 2 substrates studied by x-ray diffraction, optical microscopy and Scanning Tunneling Microscopy, we demonstrate that ordered interfaces with well-defined orientations of adsorbed dipoles induce planar…

Soft Condensed Matter · Physics 2015-11-05 Emmanuelle Lacaze , A Apicella , M De Santo , D Coursault , M Alba , M Goldmann , R Barberi

Evaporation alters the molecular interactions and leads to phase separation within the evaporating liquid. The question of whether evaporation could lead to specific phase separation at the liquid interface and eventually to the formation…

Soft Condensed Matter · Physics 2024-08-27 Vahid Nasirimarekani

Hydrogels are promising systems for separation applications due to their structural characteristics (i.e. hydrophilicity and porosity). In our study, we investigate the permeation of suspensions of rigid latex particles of different sizes…