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The non-equilibrium structural and dynamical properties of a flexible polymer tethered to a reflecting wall and subject to oscillatory linear flow are studied by numerical simulations. Polymer is confined in two dimensions and is modeled as…

Soft Condensed Matter · Physics 2024-07-30 A. Lamura

In recent years there has been significant progress in the development of artificial ion pumping membranes. Ion pumps based on asymmetric nano-pores have been shown to operate as ionic current rectifiers, thus pumping a net ion flux against…

Applied Physics · Physics 2024-03-28 Alon Herman , Gideon Segev

Battery electrode surfaces are generally coated with electronically insulating solid films of thickness 1-50 nm. Both electrons and Li+ can move at the electrode-surface film interface in response to the voltage, which adds complexity to…

Materials Science · Physics 2015-07-10 Kevin Leung , Andrew Leenheer

Ion energy distributions have been determined at the rf-bias electrode in an inductively-coupled acetylene-argon plasma for various substrate bias voltages and frequencies under conditions suitable for film deposition. These are compared…

Plasma Physics · Physics 2008-11-27 A. Baby , C. M. O. Mahony , P. Lemoine , P. D. Maguire

We describe the general phenomenon of `induced-charge electro-osmosis' (ICEO) -- the nonlinear electro-osmotic slip that occurs when an applied field acts on the ionic charge it {\sl induces} around a polarizable surface. Motivated by a…

Fluid Dynamics · Physics 2007-05-23 Todd M. Squires , Martin Z. Bazant

The electric field grading of dielectric permittivity gradient devices is an effective way of enhancing their insulation properties. The in-situ electric field-driven assembly is an advanced method for the fabrication of insulation devices…

Materials Science · Physics 2020-09-25 Zikui Shen , Zhenyu Xin , Xilin Wang , Xinyu Wei , Zhidong Jia

The electrical impedance response of Gelatin based solid polymer electrolyte to gamma irradiation is investigated by impedance spectroscopy. An analysis based on Poisson-Nernst-Plank model, incorporating fractional time derivatives is…

Materials Science · Physics 2015-03-25 Tania Basu , Abhra Giri , Sujata Tarafdar , Shantanu Das

The application of AC electric fields in aqueous suspensions of anisotropic particles leads to unbalanced liquid flows and nonlinear, induced-charge electrophoretic (ICEP) motion. We report experimental observations of the motion of "Janus"…

Fluid Dynamics · Physics 2009-11-13 Sumit Gangwal , Olivier J. Cayre , Martin Z. Bazant , Orlin D. Velev

This paper provides a detailed review on applications of ionic electroactive polymer (i-EAP) soft actuators as active elements of microfluidic micropumps, microvalves, and micromixers. The related works that have so far been presented by…

Applied Physics · Physics 2019-04-16 Mohsen Annabestani , Mahdi Fardmanesh

Metal nanoparticles are receiving increased scientific attention owing to their unique physical and chemical properties that make them suitable for a wide range of applications in diverse fields, such as electrochemistry, biochemistry, and…

Chemical Physics · Physics 2020-10-09 Bendix Petersen , Rafael Roa , Joachim Dzubiella , Matej Kanduc

We theoretically investigate electrostatic properties between two charged surfaces with a grafted polyelectrolyte layer in an aqueous electrolyte solution by using the Poisson-Boltzmann approach accounting for ion partitioning. In order to…

Soft Condensed Matter · Physics 2022-02-07 Jun-Sik Sin

Nanoscopic heterogeneities in composition and structure are quintessential for the properties of electrocatalyst materials. Here, we present a semiclassical model to study the electrochemical properties of supported electrocatalyst…

Materials Science · Physics 2025-02-27 Yufan Zhang , Tobias Binninger , Jun Huang , Michael Eikerling

Polymeric ionic liquids are emerging polyelectrolyte materials for modern electrochemical applications. In this paper, we propose a self-consistent field theory of the polymeric ionic liquid on a charged conductive electrode. Taking into…

Soft Condensed Matter · Physics 2022-02-02 Yury A. Budkov , Nikolai N. Kalikin , Andrei L. Kolesnikov

Topological transition of the iso-frequency contour (IFC) from a closed ellipsoid to an open hyperboloid, will provide unique capabilities for controlling the propagation of light. However, the ability to actively tune these effects remains…

Optics · Physics 2018-03-20 Zhiwei Guo , Haitao Jiang , Yong Sun , Yunhui Li , Hong Chen

There is a large body of literature investigating the static and dynamic properties of polyelectrolytes due both to their widespread application in industrial processes and their ubiquitous presence in biology. Because of their highly…

Soft Condensed Matter · Physics 2016-01-20 Florian Fahrenberger , Owen A. Hickey , Jens Smiatek , Christian Holm

We investigate ionization at a solid-water interface in applied electric field. We attach an electrode to a dielectric film bearing silanol or carboxyl groups with an areal density $\Gamma_0$, where the degree of dissociation $\alpha$ is…

Soft Condensed Matter · Physics 2016-09-29 Ryuichi Okamoto , Akira Onuki

The strongly coupled electron liquid provides a unique opportunity to study the complex interplay of strong coupling with quantum degeneracy effects and thermal excitations. To this end, we carry out extensive \textit{ab initio} path…

Computational Physics · Physics 2020-02-05 Tobias Dornheim , Travis Sjostrom , Shigenori Tanaka , Jan Vorberger

We consider the coupling between an external electric field and dissociated ions embedded in anisotropic polarizable media such as block copolymers. We argue that the presence of such ions can induce strong morphological changes and even…

Soft Condensed Matter · Physics 2009-11-07 Yoav Tsori , Francois Tournilhac , David Andelman , Ludwik Leibler

We report, for the first time, quadrupole mass spectrometry of neutral and positive ionic hydrocarbon species measured at the rf biased substrate electrode of an inductively coupled plasma for acetylene rich C2H2:Ar mixtures under various…

Plasma Physics · Physics 2008-11-27 A. Baby , C. M. O. Mahony , P. D. Maguire

Electrostatic correlations and variable permittivity of electrolytes are essential for exploring many chemical and physical properties of interfaces in aqueous solutions. We propose a continuum electrostatic model for the treatment of these…

Soft Condensed Matter · Physics 2015-06-23 Manman Ma , Zhenli Xu