Seeding the multi-dimensional nonequilibrium pulling for Hamiltonian variation: indirect nonequilibrium free energy simulations at QM levels

Z Sun, Q He - Physical Chemistry Chemical Physics, 2022 - pubs.rsc.org
The combination of free energy simulations in the alchemical and configurational spaces
provides a feasible route to access the thermodynamic profiles under a computationally …

BAR‐Based Multi‐Dimensional Nonequilibrium Pulling for Indirect Construction of QM/MM Free Energy Landscapes: Varying the QM Region

Z Sun, Z Liu - Advanced Theory and Simulations, 2021 - Wiley Online Library
The indirect free energy simulation at quantum mechanics (QM)/molecular mechanics (MM)
levels provides a feasible alternative to direct QM/MM simulations. The main idea under the …

DNA-based optomechanical molecular motor

M McCullagh, I Franco, MA Ratner… - Journal of the American …, 2011 - ACS Publications
An azobenzene-capped DNA hairpin coupled to an AFM is presented as an optically
triggered single-molecule motor. The photoinduced trans to cis isomerization of azobenzene …

Statistical mechanics of ligand–receptor noncovalent association, revisited: Binding site and standard state volumes in modern alchemical theories

P Procacci, R Chelli - Journal of Chemical Theory and …, 2017 - ACS Publications
The present paper is intended to be a comprehensive assessment and rationalization, from
a statistical mechanics perspective, of existing alchemical theories for binding free energy …

BAR-based multi-dimensional nonequilibrium pulling for indirect construction of QM/MM free energy landscapes: from semi-empirical to ab initio

Z Sun - Physical Chemistry Chemical Physics, 2019 - pubs.rsc.org
The indirect method for the construction of quantum mechanics (QM)/molecular mechanics
(MM) free energy landscapes provides a cheaper alternative for free energy simulations at …

Unbiased free energy estimates in fast nonequilibrium transformations using Gaussian mixtures

P Procacci - The Journal of Chemical Physics, 2015 - pubs.aip.org
In this paper, we present an improved method for obtaining unbiased estimates of the free
energy difference between two thermodynamic states using the work distribution measured …

Energy dissipation asymmetry in the non equilibrium folding/unfolding of the single molecule alanine decapeptide

P Procacci, S Marsili - Chemical Physics, 2010 - Elsevier
We present non equilibrium molecular dynamics experiments of the unfolding and refolding
of a single molecule alanine decapeptide in vacuo subject to a Nosé thermostat. Forward …

Hummer and Szabo-like potential of mean force estimator for bidirectional nonequilibrium pulling experiments/simulations

P Nicolini, P Procacci, R Chelli - The Journal of Physical Chemistry …, 2010 - ACS Publications
In the framework of single-molecule pulling experiments, the system is typically driven out of
equilibrium by a time-dependent external potential V (t) acting on a collective coordinate …

Single‐Molecule Pulling: Phenomenology and Interpretation

I Franco, MA Ratner, GC Schatz - Nano and cell mechanics …, 2013 - Wiley Online Library
In recent years, a number of techniques have been developed that allow us to access the
properties of single molecules; for example, see Refs [1–8]. These windows into the single …

Seeding the Multi-dimensional Nonequilibrium Pulling for Hamiltonian Variation: Indirect QM/MM Free Energy Simulations

Z Sun, Q He - 2021 - chemrxiv.org
The combination of free energy simulations in the alchemical and configurational spaces
provides a feasible route to access the thermodynamic profiles under a computationally …