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We generalize the predictions for attractions between over-all neutral surfaces induced by charge fluctuations/correlations to non-uniform systems that include dielectric discontinuities, as is the case for mixed charged lipid membranes in…

Soft Condensed Matter · Physics 2009-10-31 Rebecca Menes , Philip Pincus , Bean Stein

Introducing controlled fluid motion inside a droplet turns out to be of outstanding scientific importance. In this work, we suggest a new method of flow manipulation inside a sessile droplet by simply deploying a static charge produced by…

The contact value theorem was originally derived for Coulomb fluids of mobile charged particles in thermal equilibrium, in the presence of interfaces carrying a {\em uniform} surface charge density and in the absence of dielectric…

Statistical Mechanics · Physics 2025-03-03 Ladislav Šamaj

A gap in understanding the link between continuum theories of ion transport in ionic liquids and the underlying microscopic dynamics has hindered the development of frameworks for transport phenomena in these concentrated electrolytes.…

Soft Condensed Matter · Physics 2015-09-11 Alpha A. Lee , Svyatoslav Kondrat , Dominic Vella , Alain Goriely

We derive generalized charge energy rate equations for organic solids and biomolecular aggregates, even when these are dynamically disordered. These equations suggest that the transport in such cases rely on both drift and diffusion…

Mesoscale and Nanoscale Physics · Physics 2017-12-25 K. Navamani , Swapan K. Pati

A particular type of surface chemical reaction resulted in direct charge ejection. Several different experimental observations strongly support the hypothesis that nearly all of the molecular kinetic energy of a highly excited vibrating…

Chemical Physics · Physics 2009-04-30 Anthony Zuppero , Thomas J. Dolan

Conservation of current and conservation of charge are nearly the same thing: when enough is known about charge movement, conservation of current can be derived from conservation of charge, in ideal dielectrics, for example. Conservation of…

Other Quantitative Biology · Quantitative Biology 2016-10-20 Bob Eisenberg

We investigate the diffusiophoresis of a non-polarizable droplet laden with soluble ionic surfactant, for which the surface charge arises from adsorption of surfactant at the fluid-fluid interface. Unlike previous studies that assume either…

Fluid Dynamics · Physics 2026-02-09 Subrata Majhi , Somnath Bhattacharyya

Liquid electricity generator and hydrovoltaic technology have received numerous attentions, which can be divided into horizontal movement generator and vertical movement generator. The horizontal movement generator is limited for powering…

We consider a network of coupled underdamped ac-driven dynamical units exposed to a heat bath. The topology of connections defines the absence/presence of certain spatial symmetries, which in turn cause nonzero/zero value of a mean…

Statistical Mechanics · Physics 2015-06-25 S. Denisov

The interaction between charged objects in solution is generally expected to recapitulate two central principles of electromagnetics: (i) like-charged objects repel, and (ii) they do so regardless of the sign of their electrical charge.…

Soft Condensed Matter · Physics 2022-12-27 Sida Wang , Rowan Walker-Gibbons , Bethany Watkins , Melissa Flynn , Madhavi Krishnan

Charge separation at moving three-phase contact lines is observed in nature as well as technological processes. Despite the growing number of experimental investigations in recent years, the physical mechanism behind the charging remains…

Soft Condensed Matter · Physics 2023-05-04 Aaron D. Ratschow , Lisa S. Bauer , Pravash Bista , Stefan A. L. Weber , Hans-Jürgen Butt , Steffen Hardt

We investigate the collisions of uncharged, conducting droplets settling under gravity in the presence of an external electric field. Previous studies have derived a near-field asymptotic expression for the electric-field-induced…

Fluid Dynamics · Physics 2025-03-11 Pijush Patra , Anubhab Roy

Recently, our group reported that an any aqueous droplet dispensed from a pipette tip has considerable amount of electrical charge. This natural electrical charge of a droplet could cause undesired, unfamiliar experimental results. Since…

Fluid Dynamics · Physics 2013-10-10 Dongwhi Choi , Horim Lee , Do Jin Im , Dong Sung Kim

Controlling interfaces of phase separating fluid mixtures is key to creating diverse functional soft materials. Traditionally, this is accomplished with surface-modifying chemical agents. Using experiment and theory, we study how mechanical…

Soft Condensed Matter · Physics 2022-08-15 Raymond Adkins , Itamar Kolvin , Zhihong You , Sven Witthaus , M. Cristina Marchetti , Zvonimir Dogic

A simple model is proposed for the direct correlation function (DCF) for simple fluids consisting of a hard-core contribution, a simple parametrized core correction, and a mean-field tail. The model requires as input only the free energy of…

Statistical Mechanics · Physics 2007-10-08 James F. Lutsko

Time-dependent multiphysics interactions that drive the energy transfer in electromechanical systems are poorly understood. We probe dielectric barrier discharge (DBD) with an external DC-augmented (DCA) field to reveal new mechanistic…

Plasma Physics · Physics 2024-03-28 Anthony Tang , Alberto Aliseda , Alexander Mamishev , Igor Novosselov

We present experimental evidence of a thermoelectric effect at the interface between two liquid metals. Using superimposed layers of mercury and gallium in a cylindrical vessel operating at room temperature, we provide a direct measurement…

Fluid Dynamics · Physics 2024-09-05 Marlone Vernet , Stephan Fauve , Christophe Gissinger

Starting from the Boltzmann-Enskog kinetic equations, the charge transport equation for bidisperse granular flows with contact electrification is derived with separate mean velocities, total kinetic energies, charges and charge variances…

Fluid Dynamics · Physics 2021-09-29 Lise Ceresiat , Jari Kolehmainen , Ali Ozel

Breakup of a liquid jet into a chain of droplets is common in nature and industry. Previous researchers developed profound mathematic and fluid dynamic models to address this breakup phenomenon starting from tiny perturbations. However, the…

Fluid Dynamics · Physics 2024-02-14 Fei Wang , Oleg Tschukin , Thomas Leisner , Haodong Zhang , Britta Nestler