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We investigate the effect of cylindrical nano-confinement on the phase behaviour of a rigid model of carbon dioxide using both molecular dynamics and well tempered metadynamics. To this aim we study a simplified pore model across a…

材料科学 · 物理学 2017-09-15 Ilaria Gimondi , Matteo Salvalaglio

Ionic liquids constrained at interfaces or restricted in subnanometric pores are increasingly employed in modern technologies, including energy applications. Understanding the details of their behavior in these conditions is therefore…

材料科学 · 物理学 2018-09-25 Stefano Mossa

Spatial confinement in nanoporous media affects the structure, thermodynamics and mobility of molecular soft matter often markedly. This article reviews thermodynamic equilibrium phenomena, such as physisorption, capillary condensation,…

软凝聚态物质 · 物理学 2015-02-17 Patrick Huber

For particles confined to two dimensions, any curvature of the surface affects the structural, kinetic and thermodynamic properties of the system. If the curvature is non-uniform, an even richer range of behaviours can emerge. Using a…

软凝聚态物质 · 物理学 2020-08-10 Jack O. Law , Jacob M. Dean , Mark A. Miller , Halim Kusumaatmaja

Ionic Coulomb blockade in nanopores is a phenomenon that shares some similarities but also differences with its electronic counterpart. Here, we investigate extensively this phenomenon using all-atom molecular dynamics of ionic transport…

介观与纳米尺度物理 · 物理学 2017-12-27 Hiroya Tanaka , Hideo Iizuka , Yuriy V. Pershin , Massimiliano Di Ventra

We implement molecular dynamics simulations in canonical ensemble to study the effect of confinement on a $2d$ crystal of point particles interacting with an inverse power law potential proportional to $r^{-12}$ in a narrow channel. This…

软凝聚态物质 · 物理学 2014-09-30 M. Ebrahim Foulaadvand , Neda Ojaghlou

We analyse a binary mixture of colloidal parallel hard cylindrical particles with identical diameters but dissimilar lengths $L_1$ and $L_2$, with $s=L_2/L_1=3$, confined by two parallel hard walls in a planar slit-pore geometry, using a…

软凝聚态物质 · 物理学 2019-03-27 Daniel de las Heras , Yuri Martinez-Raton , Enrique Velasco

The remaining dynamical degrees of freedom of molecular fluids confined into capillaries of nano to sub-nanometer diameter are of fundamental relevance for future developments in the field of nanofluidics. These properties cannot be simply…

Fluid phase equilibria involving nano-dispersed phases, where at least one of the coexisting phases is confined to a small volume, are investigated by molecular dynamics simulation. Complementing previous studies on nanoscopic droplets,…

介观与纳米尺度物理 · 物理学 2013-07-23 Martin Horsch , Hans Hasse

The presence of nanoparticles in a diblock copolymer leads to changes in the morphology and properties of the matrix and can produce highly organized hybrid materials. The resulting material properties depend not only on the polymer…

软凝聚态物质 · 物理学 2018-05-30 Javier Diaz , Marco Pinna , Andrei Zvelindovsky , Adelchi Asta , Ignacio Pagonabarraga

By performing dynamic Monte Carlo simulations, we investigate the microrheology of isotropic suspensions of hard-core colloidal cuboids. In particular, we infer the local viscoelastic behaviour of these fluids by studying the dynamics of a…

软凝聚态物质 · 物理学 2022-09-02 Effran Mirzad Rafael , Luca Tonti , Fabián A. García Daza , Alessandro Patti

Physical properties of colloidal materials can be modified by addition of nanoparticles. Within a model of like-charged mixtures of particles governed by effective electrostatic interactions, we explore the influence of charged…

软凝聚态物质 · 物理学 2018-05-22 Braden M. Weight , Alan R. Denton

A simple model of an active colloid consisting of dumbbell-shaped particles that cyclically change their length without propelling themselves is proposed and analyzed. At nanoscales, it represents an idealization for bacterial cytoplasm or…

适应与自组织系统 · 物理学 2020-01-28 Yuki Koyano , Hiroyuki Kitahata , Alexander S. Mikhailov

The transport properties of colloidal particles in active liquids have been studied extensively. It has led to a deeper understanding of the interactions between passive and active particles. However, the phase behavior of colloidal…

软凝聚态物质 · 物理学 2023-01-30 Pragya Kushwaha , Vivek Semwal , Sayan Maity , Shraddha Mishra , Vijayakumar Chikkadi

We use Molecular Dynamics simulations to study how the nanopore and the fluid structures affects the dynamic, thermodynamic and structural properties of a confined anomalous fluid. The fluid is modeled using an effective pair potential…

软凝聚态物质 · 物理学 2015-06-23 Leandro B. Krott , José Rafael Bordin , Ney Marçal Barraz , Marcia C. Barbosa

It is well stablished that confinement of supercooled liquids in nano-pores induces various effects as a strong modification of the dynamics and a layering of the local structure. In this work we raise the issue as how these confinement…

介观与纳米尺度物理 · 物理学 2021-09-07 Felix Mercier , Gaetan Delhaye , Victor Teboul

At low temperatures, colloidal particles with short-range attractive and long-range repulsive interactions can form various periodic microphases in bulk.In this paper, we investigate the self-assembly behaviour of colloids with competing…

软凝聚态物质 · 物理学 2023-12-12 Ningyi Li , Junhong Li , Lijingting Qing , Shicheng Ma , Yao Li , Baohui Li

Cellulose nanocrystals (CNCs) are polycrystalline, rod-shaped nanoparticles isolated from cellulose, which have attracted increasing attention for a wide variety of applications. While there has been significant research into CNCs in…

Using Monte Carlo simulations, we study the assembly of colloidal particles interacting via isotropic core-corona potentials in two dimensions and confined in a circular box. We explore the structural variety at low temperatures as function…

软凝聚态物质 · 物理学 2020-01-08 Erik R. Fonseca , Carlos I. Mendoza

Concentrated colloidal suspensions are a well-tested model system which has a glass transition. Colloids are suspensions of small solid particles in a liquid, and exhibit glassy behavior when the particle concentration is high; the…

软凝聚态物质 · 物理学 2010-10-01 Luca Cipelletti , Eric R. Weeks
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