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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

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 Adaptive Poisson-Boltzmann Solver (APBS) software was developed to solve the equations of continuum electrostatics for large biomolecular assemblages that has provided impact in the study of a broad range of chemical, biological, and…

The electrostatic potential in the neighborhood of a biomolecule can be computed thanks to the non-linear divergence-form elliptic Poisson-Boltzmann PDE. Dedicated Monte-Carlo methods have been developed to solve its linearized version (see…

Poisson-Boltzmann (PB) model is one of the most popular implicit solvent models in biophysical modeling and computation. The ability of providing accurate and reliable PB estimation of electrostatic solvation free energy, $\Delta…

生物大分子 · 定量生物学 2016-06-10 Duc D. Nguyen , Bao Wang , Guo-wei Wei

Biomolecular electrostatics is key in protein function and the chemical processes affecting it. Implicit-solvent models via the Poisson-Boltzmann (PB) equation provide insights with less computational cost than atomistic models, making…

计算物理 · 物理学 2022-12-27 Tingyu Wang , Christopher D. Cooper , Timo Betcke , Lorena A. Barba

Poisson-Boltzmann (PB) theory is the classic approach to soft matter electrostatics which has been applied to numerous problems of physical chemistry and biophysics. Its essential limitations are the neglect of correlation effects and of…

软凝聚态物质 · 物理学 2016-08-03 Sahin Buyukdagli , Ralf Blossey

In simulating charged systems, it is often useful to treat some ionic components of the system at the mean-field level and solve the Poisson-Boltzmann (PB) equation to get their respective density profiles. The numerically intensive task of…

软凝聚态物质 · 物理学 2013-09-30 Vikram Jadhao , Francisco J. Solis , Monica Olvera de la Cruz

We present the open source distributed software package Poisson-Boltzmann Analytical Method (PB-AM), a fully analytical solution to the linearized Poisson Boltzmann equation, for molecules represented as non-overlapping spherical cavities.…

生物大分子 · 定量生物学 2016-09-27 Lisa E. Feldberg , David H. Brookes , Eng-Hui Yap , Elizabeth Jurrus , Nathan Baker , Teresa Head-Gordon

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

The Poisson-Boltzmann (PB) theory is one of the most important theoretical models describing charged systems continuously. However, it suffers from neglecting ion correlations, which hinders its applicability to more general charged systems…

统计力学 · 物理学 2020-08-26 Mao Su , Yanting Wang

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

The Poisson-Boltzmann (PB) theory is widely used to depict ionic systems. As a mean-field theory, the PB theory neglects the correlation effect in the ionic atmosphere and leads to deviations from experimental results as the concentration…

软凝聚态物质 · 物理学 2019-06-25 Mao Su , Zhijie Xu , Yanting Wang

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

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

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

We present a soft-potential-enhanced Poisson-Boltzmann (SPB) theory to efficiently capture ion distributions and electrostatic potential around rodlike charged macromolecules. The SPB model is calibrated with a coarse-grained particle-based…

软凝聚态物质 · 物理学 2022-06-07 Hossein Vahid , Alberto Scacchi , Xiang Yang , Tapio Ala-Nissila , Maria Sammalkorpi

Modeling of biomolecular systems plays an essential role in understanding biological processes, such as ionic flow across channels, protein modification or interaction, and cell signaling. The continuum model described by the…

生物物理 · 物理学 2015-12-08 Yu Qiao , Benzhuo Lu

Swollen stacks of finite-size disc-like Laponite clay platelets are investigated within a Wigner-Seitz cell model. Each cell is a cylinder containing a coaxial platelet at its centre, together with an overall charge-neutral distribution of…

软凝聚态物质 · 物理学 2009-10-31 R. J. F. Leote de Carvalho , E. Trizac , J. -P. Hansen

The non-linear Poisson-Boltzmann equation for a circular, uniformly charged platelet, confined together with co- and counter-ions to a cylindrical cell, is solved semi-analytically by transforming it into an integral equation and solving…

软凝聚态物质 · 物理学 2009-10-31 R. J. F. Leote de Carvalho , E. Trizac , J. P Hansen
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