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相关论文: Water permeability in nanopores: when size, shape,…

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Electrical image potentials can be important in small spaces, such as nanoscale pores in porous electrodes, which are used in capacitive desalination and in supercapacitors. It will be shown here that inside pores in porous metallic…

介观与纳米尺度物理 · 物理学 2022-04-27 Jeffrey B Sokoloff

Liquid phase exfoliation is a commonly used method to produce 2D nanosheets from a range of layered crystals. However, such nanosheets display broad size and thickness distributions and correlations between area and thickness, issues that…

We consider a class of systems where, due to the large mismatch of dielectric constants, the Coulomb interaction is approximately one-dimensional. Examples include ion channels in lipid membranes and water filled nanopores in silicon or…

统计力学 · 物理学 2015-06-25 A. Kamenev , J. Zhang , A. I. Larkin , B. I. Shklovskii

In order to detect the effect of the surface charge discreteness on the properties at the solid-liquid interface, molecular dynamics simulation model taking consideration of the vibration of wall atoms was used to investigate the ion and…

化学物理 · 物理学 2016-12-20 Yinghua Qiu , Yunfei Chen

Nanotubes show great promise for miniaturizing advanced technologies. Their exceptional physical properties are intimately related to their morphological and crystal structure. Circumferential faceting of multiwalled nanotubes reinforces…

介观与纳米尺度物理 · 物理学 2022-06-15 Itai Leven , Roberto Guerra , Andrea Vanossi , Erio Tosatti , Oded Hod

Narrow carbon nanotubes (CNTs) desalinate water, mimicking water channels of biological membranes, yet the physics behind selectivity, especially, the effect of the membrane embedding CNTs on water and ion transfer, is still unclear. Here,…

材料科学 · 物理学 2020-12-22 Vadim Neklyudov , Viatcheslav Freger

Geo-materials such as vuggy carbonates are known to exhibit multiple spatial scales. A common manifestation of spatial scales is the presence of (at least) two different scales of pores, which is commonly referred to as double porosity. To…

流体动力学 · 物理学 2018-03-07 K. B. Nakshatrala , S. H. S. Joodat , R. Ballarini

We consider the theoretical description of a fluid adsorbed in a nanopore. Hysteresis and discontinuities in the isotherms in general hampers the determination of equilibrium thermodynamic properties, even in computer simulations. A…

软凝聚态物质 · 物理学 2015-06-18 Joël Puibasset , Edouard Kierlik , Gilles Tarjus

Cellular internalization of nanoparticles requires the full wrapping of the nanoparticles by the cell membrane. This wrapping process can occur spontaneously if the adhesive interactions between the nanoparticles and the membranes are…

亚细胞过程 · 定量生物学 2015-11-20 Amir Houshang Bahrami , Reinhard Lipowsky , Thomas R. Weikl

In this work, we develop an extended uniform potential (UP) model for a membrane nanopore by including two different charging mechanisms of the pore walls, namely by electronic charge and by chemical charge. These two charging mechanisms…

化学物理 · 物理学 2019-12-25 L. Zhang , P. M. Biesheuvel , I. I. Ryzhkov

Interfaces between aqueous electrolytes and nanoporous carbons are involved in a number of technological applications such as energy storage and capacitive deionization. The disordered nature of the carbon materials makes it challenging to…

材料科学 · 物理学 2022-07-21 Anagha Sasikumar , John M. Griffin , Céline Merlet

Nanofluids are suspensions of nanoparticles and fibers which have recently attracted much attention due to their superior thermal properties. Here, nanofluids are studied in the sense of nanofins transversally attached to a surface, so that…

介观与纳米尺度物理 · 物理学 2010-11-23 Eliodoro Chiavazzo , Pietro Asinari

We describe calculations of the properties of quantum fluids inside nanotubes of various sizes. Very small radius ($R$) pores confine the gases to a line, so that a one-dimensional (1D) approximation is applicable; the low temperature…

统计力学 · 物理学 2007-05-23 Nathan M. Urban , Milton W. Cole

Media and membranes composed of micrometric-diameter pores are well known in academia and industry to be capable of efficacious nanofiltration of fluids once the pore inner surfaces are coated with nanostructures. Given the large mismatch…

介观与纳米尺度物理 · 物理学 2024-12-02 J. C. Verde , N. Coton , M. V. Ramallo

We investigate the mobility of nanometer-size solutes in water in a uniform external electric field. General arguments are presented to show that a closed surface cutting a volume from a polar liquid will carry an effective non-zero surface…

软凝聚态物质 · 物理学 2016-08-24 Mohammadhasan Dinpajooh , Dmitry V. Matyushov

Nature hosts a wealth of materials showcasing intricate structures intertwining order, disorder, and hierarchy, delivering resilient multifunctionality surpassing perfect crystals or simplistic disordered materials. The engineering of such…

软凝聚态物质 · 物理学 2024-01-19 Xiaoming Mao , Nicholas Kotov

Large-scale molecular dynamics simulations are used to simulate a layer of nanoparticles diffusing on the surface of a liquid. Both a low viscosity liquid, represented by Lennard-Jones monomers, and a high viscosity liquid, represented by…

软凝聚态物质 · 物理学 2013-01-10 Shengfeng Cheng , Gary S. Grest

Using molecular dynamics simulations, we reveal emergent properties of hydrated electrode interfaces that while molecular in origin are integral to the behavior of the system across long times scales and large length scales. Specifically,…

材料科学 · 物理学 2015-05-20 David T. Limmer , Adam P. Willard

Membrane pores are implicated in several critical functions, including cell fusion and the transport of signaling molecules for intercellular communication. However, these structural features are often difficult to probe directly. Droplet…

We present a recently developed one-dimensional dipole lattice model that accurately captures the key properties of water in narrow nanopores. For this model, we derive three equivalent representations of the Hamiltonian that together yield…

化学物理 · 物理学 2015-05-13 Jürgen Köfinger , Gerhard Hummer , Christoph Dellago