Force Field Development and MD Simulations of Poly(ethylene oxide)/LiBF4Polymer Electrolytes

2003 ◽  
Vol 107 (28) ◽  
pp. 6824-6837 ◽  
Author(s):  
Oleg Borodin ◽  
Grant D. Smith ◽  
Richard Douglas
2021 ◽  
Author(s):  
Alechania Misturini ◽  
Germano Heinzelmann ◽  
Renato L. T. Parreira ◽  
Eduardo F. Molina ◽  
Giovanni F. Caramori

The intensive use of glyphosate in conventional agriculture and its high solubility in water have led to contamination of aqueous systems worldwide.


2018 ◽  
Vol 209 ◽  
pp. 161-178 ◽  
Author(s):  
Daniel Ryan Barden ◽  
Harish Vashisth

We have developed CHARMM force-field compatible parameters and conducted all-atom explicit-solvent MD simulations of biomimetic membranes composed of block copolymers of poly(butadiene), poly(isoprene), and poly(ethylene oxide).


2016 ◽  
Vol 18 (15) ◽  
pp. 10507-10515 ◽  
Author(s):  
Vitaly V. Chaban

Thermodynamics, structure, and dynamics of diethyl sulfoxide (DESO) and ethyl methyl sulfoxide (EMSO) were investigated using ab initio calculations and non-polarizable potential based molecular dynamics (MD) simulations.


2003 ◽  
Vol 107 (28) ◽  
pp. 6813-6823 ◽  
Author(s):  
Oleg Borodin ◽  
Richard Douglas ◽  
Grant D. Smith ◽  
Frans Trouw ◽  
Sergio Petrucci

2020 ◽  
Vol 5 (Spring 2020) ◽  
Author(s):  
Trevor Heinzmann

Molecular dynamics (MD) simulation is a computational chemistry technique used to observe how a molecular system behaves as time passes. MD is based on solving Newton’s equations of motion. This requires the use of force fields to describe the potential energy function of each different molecule type in molecular system. In order to develop a force field, charges, bonds, angles, and dihedrals must be parameterized to fit quantum mechanics (QM) data. By basing the force field on QM data, MD simulations have higher accuracy while still using the low computational cost of molecular mechanics. This project focuses on developing well-fit force fields for β-lactam class antibiotics for future MD simulations. Full antibiotics are too large of a molecule to parameterize from scratch, so instead we broke them down into fragments. Smaller molecule fragments allow less terms to be optimized which greatly simplifies force field development. By the transferable nature of parameters in CHARMM force fields, the fragment parameters can be transferred to connecting molecules. Due to this, we can build up larger organic molecule force fields piece by piece.In this work, we developed CHARMM force fields for cephalothin, cefotaxime, ceftazidime, and aztreonam.


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