22 papers · ranked by Valyu relevance
Jie Cao, Zhelin Jin, Juan He, Guizhang Ju + 5 more
Electrostatic technology has emerged as a crucial tool for sustainable agricultural development due to its multifunctional characteristics. However, systematic and specialized investigations into its mechanism of action and application principles across diverse agricultural scenarios remain insufficient. Here, this…
Irina Shreyber
The purpose of this course is to provide an introduction to Electromagnetic Theory. The foundations of electrodynamics starting from the nature of electrical force up to the level of Maxwell equations solutions are presented. It starts with the introduction of the concept of a field, which plays a very important role…
Wei Tang, Dong Yan, Kecheng Qin, Xinyu Guo + 4 more
One of the fundamental principles of electrostatics is that an uncharged object will be attracted to a charged object through electrostatic induction as the two approaches one another. We refer to the charged object as a single electrode and examine the scenario where a positive voltage is applied. Because of…
Franz Waibl, Nancy D. Pomarici, Valentin J. Hoerschinger, Johannes R. Loeffler + 5 more
The electrostatic properties of proteins arise from the number and distribution of polar and charged residues. Due to their long-ranged nature, electrostatic interactions in proteins play a critical role in numerous processes, such as molecular recognition, protein solubility, viscosity, and antibody developability.…
Authors not listed
Conventional electrochemical devices require two electrodes, generally referred as anode and cathode, to maintain charge balance in the electrolyte. While charge imbalance near interfaces and in nano-confinements are well known, macroscopic charge accumulation has not been explored yet. Here, we provide experimental…
Ranjiangshang Ran, Justin C. Burton, Sunny Kumar, Saad Bhamla + 2 more
Jumping can be hazardous for entomopathogenic nematodes (EPNs) as those that fail to attach to an insect host face death by predation or starvation. Recently, it has been shown that electrostatic charges on large insects can prompt a close-range detachment of free-living nematodes, which are non-parasitic and unable to…
Authors not listed
Non-adiabatic molecular dynamics simulation of charge and exciton transport in molecular materials and biological systems are often carried out in a (quasi-)diabatic or site basis. Such simulations require the calculation of the electrostatic site energy of all possible charge or excited states of the system at each…
Ranjiangshang Ran, Justin C. Burton, Sunny Kumar, Saad Bhamla + 2 more
Title: Significance Entomopathogenic nematodes (EPNs) are important model organisms and natural biopesticides. Some EPNs exhibit explosive jumping behavior, enabling them to reach distant insect hosts. Our work reveals that jumping EPNs can be electrostatically attracted to charged hosts, such as fruit flies…
Ronald Pethig
The first patent to describe dielectrophoresis (DEP) as a means and process to separate particles from a mixture was granted by the US Patent Office to Henry Stafford Hatfield in 1924. The novel methods of sample preparation and designs of electrode geometry covered by the patent's disclosures and claims describe the…
Vanesa Viviana Galassi, Natalia Wilke, John Katsaras
Cell membrane structure is proposed as a lipid matrix with embedded proteins, and thus, their emerging mechanical and electrostatic properties are commanded by lipid behavior and their interconnection with the included and absorbed proteins, cytoskeleton, extracellular matrix and ionic media. Structures formed by…
H. Joshi, Anubhab Roy
We investigate the electrostatic interactions between two charged anisotropic conductors using a combination of asymptotic and numerical methods. For widely separated particles, we employ the method of reflections to analyze the interactions. Although the formulation applies to conductors of arbitrary shapes, it is…
Authors not listed
Electrostatic preorganization is an exciting mode to understand the catalytic function of enzymes, yet limited tools exist to computationally analyze it. In particular, no methods exist to interpret the geometry, dynamics, and fundamental components of 3-D electric fields, E(r), in protein active sites. Here we present…
Magdalena Gebala, Stephanie Johnson, Geeta Narlikar, Daniel Herschlag
The fundamental unit of chromatin is the nucleosome, which comprises of DNA wrapped around a histone protein octamer. The association of positively charged histone proteins with negatively charged DNA is intuitively thought to attenuate the electrostatic repulsion of DNA, resulting in a weakly charged nucleosome…
Authors not listed
We introduce pyEF, a software package for computing molecular electric fields, electrostatic interaction energies, and electrostatic potentials from quantum mechanical (QM) atom-centered multipole expansions with atom-wise decomposable contributions. We demonstrate the computational efficiency and accuracy of this…
Liangyue Wang, Michael Schauperl, David L. Mobley, Christopher Bayly + 1 more
We present an efficient polarizable electrostatic model, utilizing typed, atom-centered, polarizabilities and the fast direct approximation, designed for efficient use in molecular dynamics (MD) simulations. The model provides two convenient approaches to assigning partial charges in the context ofthe atomic…
Shawn W. Walker
Various types of equilibrium processes involve electric fields. In some cases, the electrical energy appears to be negative (e.g. if the voltage is fixed by an external source). This paper explains how to derive the correct thermo-dynamic potential for electro-static phenomena, whether the voltage is fixed, or the…
Sergio Cruz-León, Salvatore Assenza, Simón Poblete, Horacio V. Guzman
Multiscale simulations have broadened our understanding of RNA structure and function. Various methodologies have enabled the quantification of electrostatic and mechanical interactions of RNA at the nanometer scale. Atom-by-atom simulations, coarse-grained strategies, and continuum models of RNA and its environment…
Nam Hoang Nguyen, Quy C. Tran, Thach A. Nguyen, Trung V. Phan
We show how the electrical field inside the conductor changes as a function of the number of charged-particles. We show that the non-vanishing electrical field is concentrated near the surface of the conductor, at a shallow depth on the same order of magnitude as the separation between charges. Our study has…
Malcolm Longair
Maxwell's great paper of 1865 established his dynamical theory of the electromagnetic field. The origins of the paper lay in his earlier papers of 1856, in which he began the mathematical elaboration of Faraday's researches into electromagnetism, and of 1861-1862, in which the displacement current was introduced. These…
Yi Shen, Yu Mu, Dunwei Wang, Chong Liu + 1 more
The versatility of using electrodes to control catalytic reactions heralds a new paradigm in designing chemical transformations based on molecular compounds. Functionalization of molecular compounds on an electrically addressable surface offers an additional degree of freedom in controlling a catalyst’s reactivity and…
Pavel Krainov, В. В. Иванов, Dmitry Astakhov, В. В. Медведев + 3 more
'Vladimir Kvon' 'Andrei M. Yakunin' 'Mark van de Kerkhof'] The particle-in-cell simulation is applied to study a nanometer-sized dielectric particle lofting from a dielectric substrate exposed to a low energy electron beam. The article discusses the electron accumulation between such a substrate and a particle lying on…
Alexandre A. Martins
In this work we are going to develop a physical model that explains how propulsion may be developed in a vacuum by the collision of electrons with an anode. Instead of using principles related to the conservation of only the mechanical momentum to achieve propulsion, like all the current propulsion systems do, the…