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A biomimetic model of cell-cell communication was developed to probe the passive molecular transport across ion channels inserted in synthetic lipid bilayers formed between contacting droplets arranged in a linear array. Diffusion of a…

Biological Physics · Physics 2019-08-28 Manon Valet , Léa-Laetitia Pontani , Raphaël Voituriez , Elie Wandersman , Alexis M. Prevost

We study the random walk of a particle in a compartmentalized environment, as realized in biological samples or solid state compounds. Each compartment is characterized by its length $L$ and the boundaries transmittance $T$. We identify two…

Statistical Mechanics · Physics 2019-03-12 Gorka Muñoz-Gil , Miguel Angel García-March , Carlo Manzo , Alessio Celi , Maciej Lewenstein

The interaction between the bacterial S-protein SbpA on different types of lipid membranes has been studied using atomic force microscopy, transmission electron microscopy, and quartz crystal microbalance with dissipation. On one hand, It…

Microcapsules are commonly used in applications ranging from therapeutics to personal care products due to their ability to deliver encapsulated species through their porous shells. Here, we demonstrate a simple and scalable approach to…

Soft Condensed Matter · Physics 2023-05-04 Abhishek P. Dhand , Ryan Poling-Skutvik , Chinedum O. Osuji

PEP-PEO block copolymer micelles offer the possibility to investigate phase behaviour and interactions of star polymers (ultra-soft colloids). A star-like architecture is achieved by an extremely asymmetric block ratio (1:20). Micellar…

Soft Condensed Matter · Physics 2009-11-11 M. Laurati , J. Stellbrink , R. Lund , L. Willner , D. Richter , E. Zaccarelli

Based on the method of compact groups of inhomogeneities, we formulate new mixing rules for suspensions of charged insulating particles. They express the quasistatic conductivity and permittivity of a suspension in terms of the effective…

Soft Condensed Matter · Physics 2017-07-18 M. Ya. Sushko , V. Ya. Gotsulskiy , M. V. Stiranets

Accurate interaction potentials between microscopic components such as colloidal particles or cells are crucial to understanding a range of processes, including colloidal crystallization, bacterial colony formation, and cancer metastasis.…

Tunable nanopores in elastomeric membranes have been used to study the dependence of ionic current blockade rate on the concentration and electrophoretic mobility of particles in aqueous suspensions. A range of nanoparticle sizes, materials…

Soft Condensed Matter · Physics 2010-05-25 G R Willmott , R Vogel , S S C Yu , L G Groenewegen , G S Roberts , D Kozak , W Anderson , M Trau

While recent efforts have shown how local structure plays an essential role in the dynamic heterogeneity of homogeneous glass-forming materials, systems containing interfaces such as thin films or composite materials remain poorly…

Soft Condensed Matter · Physics 2022-04-27 Entao Yang , James F. Pressly , Bharath Natarajan , Robert Colby , Karen I. Winey , Robert A. Riggleman

Multiscale experiments in heterogeneous materials and the knowledge of their physics under shock compression are limited. This study examines the multiscale shock response of particulate composites comprised of soda-lime glass particles in…

Applied Physics · Physics 2023-03-22 Suraj Ravindran , Vatsa Gandhi , Barry Lawlor , Guruswami Ravichandran

We study the molecular gas properties in the central kiloparsec of 29 barred and 15 unbarred spirals from the BIMA Survey of Nearby Galaxies (SONG). We find that the mean nuclear molecular gas surface density of barred spirals…

Astrophysics · Physics 2007-05-23 Kartik Sheth

Biomolecular condensates composed of intrinsically disordered proteins (IDPs) are vital for proper cellular function, and their dysfunction is associated with diseases including neurodegeneration and cancer. Despite their biological…

Soft Condensed Matter · Physics 2025-02-21 Luke K. Davis , Andrew J. Baldwin , Philip Pearce

We introduced silica nanoparticles into poly ($N$,$N$-dimethylacrylamide) gel, (PDAM-NC gel), and poly (acrylamide) gel (PAM-NC gel), and carried out SAXS measurements under uniaxial elongation. It is well known that PDAM chains are…

Soft Condensed Matter · Physics 2016-01-05 Kengo Nishi , Mitsuhiro Shibayama

Precision measurements of active and reactive components of in-plane microwave surface impedance were performed in single crystals of optimally-doped Fe-based superconductor Ba(Fe1-xCox)2As2 (x = 0.074, Tc = 22.8 K). Measurements in a…

Superconductivity · Physics 2013-04-03 A. Barannik , N. T. Cherpak , M. A. Tanatar , S. Vitusevich , V. Skresanov , P. C. Canfield , R. Prozorov

We measure the flow of water through mixed packings of glass spheres and soft swellable hydrogel grains, at constant sample volume. Permeability values are obtained at constant sample volume and at porosities smaller than random close…

Soft Condensed Matter · Physics 2011-03-23 Emilie Verneuil , Douglas J. Durian

We investigate the conformation, position, and dynamics of core-shell nanoparticles (CSNPs) composed of a silica core encapsulated in a cross-linked poly-N-isopropylacrylamide shell at a water-oil interface for a systematic range of core…

Soft Condensed Matter · Physics 2018-09-07 Siddarth A. Vasudevan , Astrid Rauh , Martin Kröger , Matthias Karg , Lucio Isa

In recent experiments involving PNIPAM copolymers it has been observed that stable spherical nanoparticles are being formed by association of several chains in poor aqueous solution instead of aggregation. This type of mesoscopic structures…

Soft Condensed Matter · Physics 2007-05-23 E. G. Timoshenko , R. Basovsky , Yu. A. Kuznetsov

Previous devices to separate cells by the characteristic force they experience due to dielectrophoresis, which depends on the size and electric properties of the particle, were limited by the flow rates and particle concentrations…

Applied Physics · Physics 2020-09-08 Ngoc-Duy Dinh , Dinh-Tuan Phan

A recent theory suggests that the evaporation kinetics of macromolecular solutions is insensitive to the ambient relative humidity (RH) due to the formation of a `polarisation layer' of solutes at the air-solution interface. We confirm this…

Soft Condensed Matter · Physics 2023-11-29 Max Huisman , Paul Digard , Wilson C. K. Poon , Simon Titmuss

Thermoresponsive hydrogels have been studied intensively for creating smart drug carriers and controlled drug delivery. Understanding the drug release kinetics and corresponding transport mechanisms of nanoparticles (NPs) in a…

Soft Condensed Matter · Physics 2020-05-12 Yi Wang , Zhen Li , Jie Ouyang , George Em Karniadakis