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I consider the effect of a small concentration of a molecule, such as a short-chain alcohol, on the miscibility transition temperature of a giant plasma membrane vesicle. For concentrations sufficiently small such that the system can be…

软凝聚态物质 · 物理学 2016-12-21 M. Schick

Herein, thermal, dynamical properties, host-guest intermolecular interactions, and wettability of a series of monohydroxy phenyl-substituted alcohols (PhAs) infiltrated into native and silanized silica mesopores (d = 4 nm) were investigated…

介观与纳米尺度物理 · 物理学 2023-12-06 Natalia Soszka , Magdalena Tarnacka , Barbara Hachula , Monika Geppert-Rybczynska , Krystian Prusik , Kamil Kaminski

During the melting transition of dimyristoyl phosphatidylglycerol (DMPG), the order of the lipid chains and the three-dimensional, vesicular structural arrangement change simultaneously. These changes result in peculiar heat capacity…

生物物理 · 物理学 2025-09-29 Thomas Heimburg , Holger Ebel , Peter Grabitz , Julia Preu , Yue Wang

The dissipative nature of heat transfer relaxes thermal flows to an equilibrium state that is devoid of temperature gradients. The distance to reach an equilibrium temperature -- the thermal entrance length -- is a consequence of diffusion…

流体动力学 · 物理学 2021-06-22 S. Beetham , A. Lattanzi , J. Capecelatro

We report the observation of TEMPERATURE-INDUCED transitions between insulator, metal, and quantum-Hall behaviors for transport coefficients in the very dilute high mobility two-dimensional electron system in silicon. We consider the…

凝聚态物理 · 物理学 2007-05-23 S. V. Kravchenko , Whitney Mason , J. E. Furneaux , J. M. Caulfield , J. Singleton , V. M. Pudalov

We use direct numerical simulations to investigate the interaction between the temperature field of a fluid and the temperature of small particles suspended in the flow, employing both one and two-way thermal coupling, in a statistically…

流体动力学 · 物理学 2020-01-08 Maurizio Carbone , Andrew D. Bragg , Michele Iovieno

Effect of small additive molecules on the structural relaxation of polymer melts is investigated via molecular dynamics simulations. At a constant external pressure and a fixed number concentration of added molecules, the variation of…

软凝聚态物质 · 物理学 2019-07-30 Elias M. Zirdehi , Fathollah Varnik

Liquid-liquid phase separation has recently emerged as an important topic in the context of cellular organization. Within this context, there are multiple poorly understood features; for instance hints of critical behavior in the plasma…

统计力学 · 物理学 2024-06-25 Felix Herrmann , Burkhard Dünweg , Martin Girard

Many water soluble polymers are chemically modified versions of insoluble base materials such as cellulose. A Flory-Huggins model is solved to determine the effects of heterogeneity in modification on the solubility of such polymers. It is…

软凝聚态物质 · 物理学 2009-11-13 Patrick B. Warren

Since the structural transformations observed in water-ethanol binary mixtures are apparently driven by relatively weak intermolecular forces (like hydrophobicity and hydrogen bonding) that often cooperate to form self assembled structures,…

软凝聚态物质 · 物理学 2016-05-03 Rikhia Ghosh , Biman Bagchi

Dynamics of a polymer chain in solution gets significantly affected by the temperature and the frictional forces arising due to solvent viscosity. Here, using an explicit solvent framework for polymer simulation with the liberty to tune the…

软凝聚态物质 · 物理学 2024-09-11 Suman Majumder , Henrik Christiansen , Wolfhard Janke

Extensive microscopic molecular dynamics simulations have been performed to study the effects of short-chain alcohols, methanol and ethanol, on two different fully hydrated lipid bilayer systems in the fluid phase at 323 K. It is found that…

软凝聚态物质 · 物理学 2007-05-23 Michael Patra , Emppu Salonen , Emma Terama , Roland Faller , Bryan W. Lee , Juha Holopainen , Mikko Karttunen

A large and diverse array of small hydrophobic molecules induce general anesthesia. Their efficacy as anesthetics has been shown to correlate both with their affinity for a hydrophobic environment and with their potency in inhibiting…

生物物理 · 物理学 2018-10-17 Ellyn Gray , Joshua Karslake , Benjamin B. Machta , Sarah L. Veatch

We discuss the effects of the solvent composition on the helix-coil transition of a polypeptide chain. We use a simple model to demonstrate that improving the hydrogen-bonding ability of the solvent can make the transition less cooperative,…

统计力学 · 物理学 2009-11-07 Oded Farago , Philip Pincus

We investigate volume phase transition in gels immersed in mixture solvents, on the basis of a three-component Flory-Rehner theory. When the selectivity of the minority solvent component to the polymer network is strong, the gel tends to…

软凝聚态物质 · 物理学 2015-06-04 Yuki Uematsu , Takeaki Araki

Cloud-point curves of blends of poly(methyl methacrylate) (PMMA) with a series of oligodiols based on a bisphenol A nucleus and short branches of poly(ethylene oxide) or poly(propylene oxide) (BPA-EO or BPA-PO), and with PEO and PPO…

软凝聚态物质 · 物理学 2013-11-22 B. Jaffrennou , E. R. Soule , F. Mechin , J. Borrajo , J. P. Pascault , R. J. J. Williams

The effect of temperature on friction and slip at the liquid-solid interface has attracted attention over the last twenty years, both numerically and experimentally. However, the role of temperature on slip close to the glass transition has…

软凝聚态物质 · 物理学 2023-02-22 Suzanne Lafon , Alexis Chennevière , Frédéric Restagno , Samy Merabia , Laurent Joly

In this study, the effect of alumina and modified alumina nanoparticles in a PMMA/alumina nanocomposite was investigated. To attain this goal, the glass transition behavior of poly methyl methacrylate (PMMA), PMMA/alumina and…

材料科学 · 物理学 2018-03-02 Maryam Mohammadi , Jamal Davoodi , Mahdi Javanbakht , Hamidreza Rezaei

Phase-separated magnetic fluids provide a very strong magnetic response ($\mu>25$) in a liquid state material. Even small fields can cause a notable material response, but this depends on its properties, which are often difficult to…

软凝聚态物质 · 物理学 2024-05-10 Laura Nelsone , Guntars Kitenbergs

In a recent work [\textit{J. Mol. Liq}, 2020, \textbf{320}, 114420], using molecular dynamics simulations and a core-softened potential approach, we have shown that adding a simple solute as methanol can "kill" the density anomalous…

软凝聚态物质 · 物理学 2021-09-01 Murilo S. Marques , Vinicius F. Hernandes , Jose Rafael Bordin
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