HeroMDAnalysis: an automagical tool for GROMACS-based molecular dynamics simulation analysis

2021 ◽  
Vol 13 (5) ◽  
pp. 447-456
Author(s):  
Ravi Rawat ◽  
Kamal Kant ◽  
Anoop Kumar ◽  
Kajal Bhati ◽  
Saurabh M. Verma

Background & objective: Molecular dynamics simulations (MDS) using GROMACS are among the commonly used computational experiments in the area of molecular biology and drug discovery. This article presents a project called HeroMDAnalysis, an automagical tool to analyze the GROMACS-based MDS trajectories and generate plots as high-quality images for various parameters. Materials & methods: The tool was built using bash shell programming, and graphical user interface was built using Zenity engine. Results & conclusion: This tool offers a simple, semiautomated, and relatively fast framework for what was previously a complex, manual, time-consuming and error-prone task, presenting a useful method for biochemists and synthetic chemists with no prior experience of the command line interface.

RSC Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 5507-5515
Author(s):  
Liang Song ◽  
Feng-Qi Zhao ◽  
Si-Yu Xu ◽  
Xue-Hai Ju

The bimolecular and fused ring compounds are found in the high-temperature pyrolysis of NONA using ReaxFF molecular dynamics simulations.


2017 ◽  
Vol 890 ◽  
pp. 252-259
Author(s):  
Le Wang ◽  
Guan Cheng Jiang ◽  
Xin Lin ◽  
Xian Min Zhang ◽  
Qi Hui Jiang

Molecular dynamics simulations are used to study the dissociation inhibiting mechanism of lecithin for structure I hydrates. Adsorption characteristics of lecithin and PVP (poly (N-vinylpyrrolidine)) on the hydrate surfaces were performed in the NVT ensemble at temperatures of 277K and the hydrate dissociation process were simulated in the NPT ensemble at same temperature. The results show that hydrate surfaces with lecithin is more stable than the ones with PVP for the lower potential energy. The conformation of lecithin changes constantly after the balanced state is reached while the PVP molecular dose not. Lecithin molecule has interaction with lecithin nearby and hydrocarbon-chains of lecithin molecules will form a network to prevent the diffusion of water and methane molecules, which will narrow the available space for hydrate methane and water movement. Compared with PVP-hydrate simulation, analysis results (snapshots and mass density profile) of the dissociation simulations show that lecithin-hydrate dissociates more slowly.


2019 ◽  
Vol 67 ◽  
pp. 101-111
Author(s):  
Kalyani Dhusia ◽  
Kalpana Raja ◽  
Pierre Paul Michel Thomas ◽  
Pramod K. Yadav ◽  
Pramod W. Ramteke

1988 ◽  
Vol 100 ◽  
Author(s):  
Davy Y. Lo ◽  
Tom A. Tombrello ◽  
Mark H. Shapiro ◽  
Don E. Harrison

ABSTRACTMany-body forces obtained by the Embedded-Atom Method (EAM) [41 are incorporated into the description of low energy collisions and surface ejection processes in molecular dynamics simulations of sputtering from metal targets. Bombardments of small, single crystal Cu targets (400–500 atoms) in three different orientations ({100}, {110}, {111}) by 5 keV Ar+ ions have been simulated. The results are compared to simulations using purely pair-wise additive interactions. Significant differences in the spectra of ejected atoms are found.


2015 ◽  
Vol 17 (45) ◽  
pp. 30307-30317 ◽  
Author(s):  
Sathish Kumar Mudedla ◽  
Ettayapuram Ramaprasad Azhagiya Singam ◽  
Kanagasabai Balamurugan ◽  
Venkatesan Subramanian

The complexation of siRNA with positively charged gold nanoclusters has been studied using classical molecular dynamics simulations.


CrystEngComm ◽  
2018 ◽  
Vol 20 (25) ◽  
pp. 3569-3580 ◽  
Author(s):  
Xiaoxiao Sui ◽  
Yongjian Cheng ◽  
Naigen Zhou ◽  
Binbing Tang ◽  
Lang Zhou

Based on the Stillinger–Weber potential, molecular dynamics simulations of the solidification processes of multicrystalline silicon were carried out.


RSC Advances ◽  
2018 ◽  
Vol 8 (23) ◽  
pp. 13008-13017 ◽  
Author(s):  
Jun Liu ◽  
Haixiao Wan ◽  
Huanhuan Zhou ◽  
Yancong Feng ◽  
Liqun Zhang ◽  
...  

The formation mechanism of the bound rubber in elastomer nanocomposites using the coarse-grained molecular-dynamics simulations.


2020 ◽  
Vol 22 (3) ◽  
pp. 1154-1167 ◽  
Author(s):  
Khair Bux ◽  
Syed Tarique Moin

Molecular dynamics simulations were applied to an isolated cholesterol immersed in four different solvents of varying polarity, such as water, methanol, dimethyl sulfoxide and benzene, to gain insights into the structural and dynamical properties.


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