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Related papers: Water Dynamics around T0 vs. R4 of Hemoglobin from…

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The water dynamics, as characterized by the local hydrophobicity (LH), is investigated for tetrameric hemoglobin and dimeric melittin. For the T0 to R0 transition in Hb it is found that LH provides additional molecular-level insight into…

The interface between hemoglobin (Hb) and its environment, in particular water, is of great physiological relevance. Here, results from {\it in vitro}, {\it in vivo}, and computational experiments (molecular dynamics simulations) are…

Chemical Physics · Physics 2021-10-08 Markus Meuwly , Martin Karplus

We use molecular dynamics computer simulations and nuclear magnetic resonance experiments to investigate the dynamics of water at interfaces of molecular roughness and low mobility. We find that, when approaching such interfaces, the…

Soft Condensed Matter · Physics 2014-07-22 Markus Rosenstihl , Kerstin Kämpf , Felix Klameth , Matthias Sattig , Michael Vogel

In this manuscript, we present a general computational method for characterizing the molecular structure of liquid water interfaces as sampled from atomistic simulations. With this method, the interfacial structure is quantified based on…

Soft Condensed Matter · Physics 2017-08-25 Sucheol Shin , Adam P. Willard

The air-water interface plays a crucial role in many aspects of science, because of its unique properties, such as a two-dimensional hydrogen bond (HB) network and completely different HB dynamics compared to bulk water. However, accurately…

Materials Science · Physics 2024-10-01 Gang Huang , Jie Huang

The interactions of a hydrophilic surface with water can significantly influence the characteristics of the liquid water interface. In this manuscript, we explore this influence by studying the molecular structure of liquid water at a…

Soft Condensed Matter · Physics 2022-09-19 Sucheol Shin , Adam P. Willard

The interface between liquid water and the Pt(111) metal surface is characterized structurally and thermodynamically via reactive molecular dynamics (MD) simulations within the ReaxFF framework. The formation of a distinct buckled adsorbate…

Chemical Physics · Physics 2021-03-19 Christoph Karsten Jung , Laura Braunwarth , Andrey Sinyavskiy , Timo Jacob

The aversion of hydrophobic solutes for water drives diverse interactions and assemblies across materials science, biology and beyond. % Here, we review the theoretical, computational and experimental developments which underpin a…

Soft Condensed Matter · Physics 2022-10-05 Nicholas B. Rego , Amish J. Patel

A theoretical model for the effect of water hydrogen bonding on the thermodynamics of hydrophobic hydration is proposed as a combination of the classical density functional theory with the recently developed probabilistic approach to water…

Statistical Mechanics · Physics 2011-06-16 Yuri S. Djikaev

We investigate the curvature-dependence of water dynamics in the vicinity of hydrophobic spherical solutes using molecular dynamics simulations. For both, the lateral and perpendicular diffusivity as well as for H-bond kinetics of water in…

Soft Condensed Matter · Physics 2016-01-22 R. Gregor Weiß , Matthias Heyden , Joachim Dzubiella

In this work, the tetrahydrofuran (THF) hydrate-water interfacial free energy is determined at $500\,\text{bar}$, at one point of the univariant two-phase coexistence line of the THF hydrate, by molecular dynamics simulation. The Mold…

Enhanced dynamical fluctuations of RNAs, facilitated by a network of water molecules with strong interactions with RNA, are suspected to be critical in their ability to respond to a variety of cellular signals. Using atomically detailed…

Biomolecules · Quantitative Biology 2015-01-15 Jeseong Yoon , Jong-Chin Lin , Changbong Hyeon , D. Thirumalai

Interfaces are a most common motif in complex systems. To understand how the presence of interfaces affect hydrophobic phenomena, we use molecular simulations and theory to study hydration of solutes at interfaces. The solutes range in size…

Soft Condensed Matter · Physics 2014-09-05 Amish J. Patel , Patrick Varilly , Sumanth N. Jamadagni , Hari Acharya , Shekhar Garde , David Chandler

Ab initio molecular dynamics simulations of liquid water under equilibrium ambient conditions, together with a novel energy decomposition analysis, have recently shown that a substantial fraction of water molecules exhibit a significant…

Disordered Systems and Neural Networks · Physics 2020-06-24 Hossam Elgabarty , Thomas D. Kühne

Degradation in performances of air conditioners and refrigerators is caused by a frost formation and adhesion on the surface. In the present study, by means of the classical molecular dynamics simulation, we investigate how and how much the…

Mesoscale and Nanoscale Physics · Physics 2021-04-14 Yoshitaka Ueki , Satoshi Matsuo , Masahiko Shibahara

A theoretical approach is developed to quantify hydrophobic hydration and interactions on a molecular scale, with the goal of gaining insight into the molecular origins of hydrophobic effects. The model is based on the fundamental relation…

Chemical Physics · Physics 2016-08-15 G. Hummer , S. Garde , A. E. García , M. E. Paulaitis , L. R. Pratt

Neutron scattering and molecular dynamics studies were performed on a concentrated aqueous tetramethylammonium (TMA) chloride solution to gain insight into the hydration shell structure of TMA, which is relevant for understanding its…

An accurate description of the structure and dynamics of interfacial water is essential for phospholipid membranes, since it determines their function and their interaction with other molecules. Here we consider water confined in stacked…

Soft Condensed Matter · Physics 2018-11-16 Sotiris Samatas , Carles Calero , Fausto Martelli , Giancarlo Franzese

We present results from extensive molecular dynamics simulations of collapse transitions of hydrophobic polymers in explicit water focused on understanding effects of lengthscale of the hydrophobic surface and of attractive interactions on…

Statistical Mechanics · Physics 2007-05-23 Manoj V. Athawale , Gaurav Goel , Tuhin Ghosh , Thomas M. Truskett , Shekhar Garde

We perform molecular dynamics simulations to investigate hydration structures and dynamics in seven water-containing polymers: PVA, PHEA, PHEMA, PBA, PMEMA, PEG, and PMEA. The analysis integrates four perspectives: the water-content…

Soft Condensed Matter · Physics 2026-05-29 Atsuki Hashimoto , Kokoro Shikata , Kang Kim , Nobuyuki Matubayasi
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