Molecular Mechanism of Gas Solubility in Liquid: Constant Chemical Potential Molecular Dynamics Simulations

constant-temperature molecular dynamics simulations

We discuss the use of a Langevin equation with a colored (correlated) noise to perform constanttemperature molecular dynamics simulations. Since the equations of motion are linear in nature, it is easy to predict the response of a Hamiltonian system to such a thermostat and to tune at will the relaxation time of modes of different frequency. This allows one to optimize the time needed to therma...

Synthesis novel bis-Coumarin derivatives as potential acetylcholinestrase inhibitors: An in vitro, molecular docking, and molecular dynamics simulations study

Alzheimer's disease is an irreversible and progressive brain disorder that slowly destroys memory and thinking skills and ultimately the ability to do the simplest things and can lead to death. Cholinesterases (ChEs) play an important role in controlling cholinergic transmission, and subsequently, by inhibiting CHEs, acetylcholine levels in the brain are elevated. Coumarins have been shown to e...

Mechanical Characteristics and Failure Mechanism of Nano-Single Crystal Aluminum Based on Molecular Dynamics Simulations: Strain Rate and Temperature Effects

Besides experimental methods, numerical simulations bring benefits and great opportunities to characterize and predict mechanical behaviors of materials especially at nanoscale. In this study, a nano-single crystal aluminum (Al) as a typical face centered cubic (FCC) metal was modeled based on molecular dynamics (MD) method and by applying tensile and compressive strain loadings its mechanical ...

Dissociative water potential for molecular dynamics simulations.

A new interatomic potential for dissociative water was developed for use in molecular dynamics simulations. The simulations use a multibody potential, with both pair and three-body terms, and the Wolf summation method for the long-range Coulomb interactions. A major feature in the potential is the change in the short-range O-H repulsive interaction as a function of temperature and/or pressure i...

Long Range Corrections to the Vapor-Liquid Equilibrium and Surface Tension of Methane with NVT Molecular Dynamics Simulations