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We study the electrode polarization behaviour of different Na-Ca-phosphosilicate glasses by measuring the differential capacitance between blocking Pt electrodes. At low applied dc bias voltages, we detect a linear capacitance regime with…

Disordered Systems and Neural Networks · Physics 2009-11-11 C. R. Mariappan , T. P. Heins , B. Roling

We investigate crystal nucleation in supersaturated colloid suspensions using enhanced molecular dynamics simulations augmented with machine learning techniques. The simulations reveal that crystallization in the model colloidal system…

Soft Condensed Matter · Physics 2024-04-30 Vanessa J. Meraz , Ziyue Zou , Pratyush Tiwary

We use Brownian dynamics simulations to study the permeation properties of a generic electrostatic model of a biological ion channel as a function of the fixed charge $Q_f$ at its selectivity filter. We reconcile the recently-discovered…

Biological Physics · Physics 2013-12-05 I. Kaufman , D. G. Luchinsky , R. Tindjong , P. V. E. McClintock , R. S. Eisenberg

The development of novel task-specific ionic liquids (ILs) represents an essential challenge in modern organic and physical chemistries. Recently we reported surface-active ILs contained the two well-known organic cations…

Soft Condensed Matter · Physics 2022-01-04 Vitaly V. Chaban

Crystallization is abound in nature and industrial practice. A plethora of indispensable products ranging from agrochemicals and pharmaceuticals to battery materials, are produced in crystalline form in industrial practice. Yet, our control…

By means of particle simulations of the equations of motion for ions interacting among themselves under the influence of newly discovered Shukla-Eliasson attractive force (SEAF) in a dense quantum plasma, we demonstrate that the SEAF can…

Plasma Physics · Physics 2015-06-11 P. K. Shukla , B. Eliasson

In a previous study, structure of silica gels prepared in a high magnetic field was investigated. While a direct application of such anisotropic silica gels is for an optical anisotropic medium possessing chemical resistance, we show here…

Materials Science · Physics 2015-05-11 Takamasa Kaito , Atsushi Mori , Chihiro Kaito

Sorbents are promising materials for applications in atmospheric water harvesting, thermal energy storage, and passive cooling, thereby addressing central challenges related to water scarcity and the global energy transition. Recently,…

Soft Condensed Matter · Physics 2023-11-22 Levi Hoogendoorn , Mauricio Huertas , Phillip Nitz , Naiyu Qi , Johannes Baller , Carsten Prinz , Gustav Graeber

We use Monte Carlo simulations to examine the simplest model of an ionic liquid, called the restricted primitive model, at a metal surface. We find that at moderately low temperatures the capacitance of the metal/ionic liquid interface is…

Chemical Physics · Physics 2010-11-19 M. S. Loth , Brian Skinner , B. I. Shklovskii

Ion channels are membrane proteins responsible for an enormous range of biological functions. Ion selectivity and permeation are based on simple laws of physics and chemistry. Ion channels are therefore ideal candidates for physical…

Biological Physics · Physics 2012-06-14 Janhavi Giri

We investigate the formation/re-dissociation mechanisms of hybrid complexes made from negatively charged PAA2k coated {\gamma}-Fe2O3 nanoparticles (NP) and positively charged polycations (PDADMAC) in aqueous solution in the regime of very…

Soft Condensed Matter · Physics 2021-09-21 Sumit Mehan , Laure Herrmann , Jean-Paul Chapel , Jacques Jestin , Jean-Francois Berret , Fabrice Cousin

A major challenge in electrochemistry is to decouple the reactive intermediates of a catalytic cycle to optimise their energies independently. During the oxygen evolution reaction (OER), such energy interdependence results from the need to…

Many key industrial processes, from electricity production, conversion and storage to electrocatalysis or electrochemistry in general, rely on physical mechanisms occurring at the interface between a metallic electrode and an electrolyte…

Computational Physics · Physics 2021-09-03 Laura Scalfi , Mathieu Salanne , Benjamin Rotenberg

We report experiments that show rapid crystallization of colloids tethered to an oil-water interface in response to laser illumination. This light-induced transition is due to a combination of long-ranged thermophoretic pumping and local…

Soft Condensed Matter · Physics 2020-08-07 Alessio Caciagli , Rajesh Singh , Darshana Joshi , R. Adhikari , Erika Eiser

The interface between the vapor and liquid phase of quadrupolar-dipolar fluids is the seat of an electric interfacial potential whose influence on ion solvation and distribution is not yet fully understood. To obtain further microscopic…

Soft Condensed Matter · Physics 2015-06-12 Lorand Horvath , Titus Beu , Manoel Manghi , John Palmeri

We present a theory for the kinetics of surfactant adsorption at the interface between an aqueous solution and another fluid (air, oil) phase. The model relies on a free-energy formulation. It describes both the diffusive transport of…

Condensed Matter · Physics 2007-05-23 H. Diamant , D. Andelman

Understanding ion adsorption at electrified metal-electrolyte interfaces is essential for accurate modeling of electrochemical systems. Here, we systematically investigate the free energy profiles of Na$^+$, Cl$^-$, and F$^-$ ions at the…

Chemical Physics · Physics 2026-02-27 Fabrice Roncoroni , Abrar Faiyad , Yichen Li , Tao Ye , Ashlie Martini , David Prendergast

Using molecular dynamics simulations and methods of importance sampling, we study the thermodynamics and dynamics of sodium chloride in the aqueous premelting layer formed spontaneously at the interface between ice and its vapor. We uncover…

Statistical Mechanics · Physics 2020-12-21 Samuel P. Niblett , David T. Limmer

Solid-state superionic conductors (SSICs) are promising alternatives to liquid electrolytes in batteries and other energy storage technologies. The rational design of SSICs and ultimately their deployment in battery technologies is hindered…

Chemical Physics · Physics 2023-06-02 Harender S. Dhattarwal , Rahul Somni , Richard C. Remsing

Ion channels regulate many essential properties of biological cells, especially the membrane potential. Despite decades of efforts on artificial channels, it remains a great challenge to mimic the dipole potential-an indispensable…