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Developing accurate solvers for the Poisson Boltzmann (PB) model is the first step to make the PB model suitable for implicit solvent simulation. Reducing the grid size influence on the performance of the solver benefits to increasing the…

数值分析 · 数学 2016-07-18 Bao Wang , Guowei Wei

Electrostatics is of paramount importance to chemistry, physics, biology, and medicine. The Poisson-Boltzmann (PB) theory is a primary model for electrostatic analysis. However, it is highly challenging to compute accurate PB electrostatic…

化学物理 · 物理学 2023-12-20 Jiahui Chen , Yongjia Xu , Xin Yang , Zixuan Cang , Weihua Geng , Guo-Wei Wei

The Poisson-Boltzmann equation (PBE) is a relevant partial differential equation commonly used in biophysical applications to estimate the electrostatic energy of biomolecular systems immersed in electrolytic solutions. A conventional mean…

The description of a conducting medium in thermal equilibrium, such as an electrolyte solution or a plasma, involves nonlinear electrostatics, a subject rarely discussed in the standard electricity and magnetism textbooks. We consider in…

化学物理 · 物理学 2018-08-01 C. G. Gray , P. J. Stiles

The Poisson-Boltzmann (PB) equation provides a mean-field theory of electrolyte solutions at interfaces and in confinement, describing how ions reorganize close to charged surfaces to form the so-called electrical double layer (EDL), with…

软凝聚态物质 · 物理学 2024-09-10 Cecilia Herrero , Laurent Joly

In computational biochemistry and biophysics, understanding the role of electrostatic interactions is crucial for elucidating the structure, dynamics, and function of biomolecules. The Poisson-Boltzmann (PB) equation is a foundational tool…

生物大分子 · 定量生物学 2024-10-08 Yongxian Wu , Qiang Zhu , Ray Luo

Interactions between surfaces and proteins occur in many vital processes and are crucial in biotechnology: the ability to control specific interactions is essential in fields like biomaterials, biomedical implants and biosensors. In the…

计算物理 · 物理学 2016-04-20 Christopher D. Cooper , Lorena A. Barba

An accurate force calculation with the Poisson-Boltzmann equation is challenging, as it requires the electric field on the molecular surface. Here, we present a calculation of the electric field on the solute-solvent interface that is exact…

化学物理 · 物理学 2023-01-13 Ian Addison-Smith , Horacio V. Guzmán , Christopher D. Cooper

We present the theory and implementation of a Poisson-Boltzmann implicit solvation model for electrolyte solutions. This model can be combined with arbitrary electronic structure methods that provide an accurate charge density of the…

计算物理 · 物理学 2020-01-08 Christopher J. Stein , John M. Herbert , Martin Head-Gordon

We study finite-difference approximations of both Poisson and Poisson-Boltzmann (PB) electrostatic energy functionals for periodic structures constrained by Gauss' law and a class of local algorithms for minimizing the finite-difference…

数值分析 · 数学 2024-09-25 Bo Li , Qian Yin , Shenggao Zhou

In this paper, we present a parallel higher-order boundary integral method to solve the linear Poisson-Boltzmann (PB) equation. In our method, a well-posed boundary integral formulation is used to ensure the fast convergence of Krylov…

数值分析 · 数学 2015-06-12 Weihua Geng

The Poisson-Boltzmann equation is a widely used model to study the electrostatics in molecular solvation. Its numerical solution using a boundary integral formulation requires a mesh on the molecular surface only, yielding accurate…

数值分析 · 数学 2020-09-25 Vicente Ramm , Jehanzeb H. Chaudhry , Christopher D. Cooper

Electrostatic interactions play crucial roles in biophysical processes such as protein folding and molecular recognition. Poisson-Boltzmann equation (PBE)-based models have emerged as widely used in modeling these important processes.…

计算物理 · 物理学 2017-04-11 Ruxi Qi , Wesley M. Botello-Smith , Ray Luo

The Poisson-Boltzmann (PB) implicit solvent model is a popular framework for studying the electrostatics of biomolecules immersed in water with dissolved salt. In this model the dielectric interface between the biomolecule and solvent is…

计算物理 · 物理学 2020-10-22 Leighton Wilson , Robert Krasny

Implicit solvent models, such as Poisson-Boltzmann models, play important roles in computational studies of biomolecules. A vital step in almost all implicit solvent models is to determine the solvent-solute interface, and the solvent…

生物物理 · 物理学 2021-05-20 Haixin Wei , Zekai Zhao , Ray Luo

The Poisson Boltzmann equation is known for its success in describing the Debye layer that arises from the charge separation phenomenon at the silica/water interface. However, by treating only the mobile ionic charges in the liquid, the…

软凝聚态物质 · 物理学 2019-07-30 Maijia Liao , Li Wan , Shixin Xu , Chun Liu , Ping Sheng

The Poisson-Boltzmann equation offers an efficient way to study electrostatics in molecular settings. Its numerical solution with the boundary element method is widely used, as the complicated molecular surface is accurately represented by…

数值分析 · 数学 2021-08-25 Stefan D. Search , Christopher D. Cooper , Elwin van't Wout

Electrical double layer (EDL) is formed when an electrode is in contact with an electrolyte solution, and is widely used in biophysics, electrochemistry, polymer solution and energy storage. Poisson-Boltzmann (PB) coupled equations provides…

介观与纳米尺度物理 · 物理学 2022-03-02 Cherq Chua , Chun Yun Kee , L. K. Ang , Yee Sin Ang

Thermodynamic properties of charge-stabilised colloidal suspensions are commonly modeled by implementing the mean-field Poisson-Boltzmann (PB) theory within a cell model. This approach models a bulk system by a single macroion, together…

软凝聚态物质 · 物理学 2015-05-18 Alan R. Denton

In this paper we have derived explicitly computable bounds on the error in energy norms for the fully nonlinear Poisson-Boltzmann equation. Together with the computable bounds, we have also obtained efficient error indicators which can…

数值分析 · 数学 2018-05-30 Johannes Kraus , Svetoslav Nakov , Sergey Repin
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