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One-dimensional inorganic nanotubes hold promise for technological applications due to their distinct physical/chemical properties, but so far advancements have been hampered by difficulties in producing single-wall nanotubes with a…

We introduce a density functional formalism to study the ground-state properties of strongly-correlated dipolar and ionic ultracold bosonic and fermionic gases, based on the self-consistent combination of the weak and the strong coupling…

We study the temperature field and the resulting flow pattern in the vicinity of a heated metal-capped Janus particle. If its thickness exceeds about 10 nm, the cap forms an isotherm and the flow pattern comprises a quadrupolar term that…

软凝聚态物质 · 物理学 2014-01-29 Thomas Bickel , Arghya Majee , Alois Würger

While alloy, core-shell and Janus binary nanoclusters are found in more and more technological applications, their formation mechanisms are still poorly understood, especially during synthesis methods involving physical approaches. In this…

材料科学 · 物理学 2020-01-08 Georg Daniel Förster , Magali Benoit , Julien Lam

Bimetallic nanoparticles (BNPs) exhibit diverse morphologies such as core-shell, Janus, onion-like, quasi-Janus, and homogeneous structures. Although extensive effort has been directed towards understanding the equilibrium configurations of…

材料科学 · 物理学 2021-05-21 Pankaj P , Saswata Bhattacharya , Subhradeep Chatterjee

We use a simple and efficient computer model to investigate the physical properties of bilayer membranes. The amphiphilic molecules are modeled as short rigid trimers with finite range pair interactions between them. The pair potentials…

软凝聚态物质 · 物理学 2009-11-10 Oded Farago

Studies of active matter, from molecular assemblies to animal groups, have revealed two broad classes of behavior: a tendency to align yields orientational order and collective motion, whereas particle repulsion leads to self-trapping and…

软凝聚态物质 · 物理学 2021-11-23 Jie Zhang , Ricard Alert , Jing Yan , Ned S. Wingreen , Steve Granick

A trapping mechanism for propelled colloidal particles based on an inhomogeneous drive is presented and studied by means of computer simulations. In experiments this method can be realized using photophoretic Janus particles driven by a…

计算物理 · 物理学 2015-07-21 Martin P. Magiera , Lothar Brendel

The micro/nano encapsulation technology has acquired considerable attention in the fields of drug delivery, biomaterial engineering, and materials science. Based on recent advances in chemical particle synthesis, we propose a primitive…

软凝聚态物质 · 物理学 2011-12-15 Wei Li , Ya Liu , Genevieve Brett , James D. Gunton

Although jammed granular systems are athermal, several thermodynamic-like descriptions have been proposed which make quantitative predictions about the distribution of volume and stress within a system and provide a corresponding…

软凝聚态物质 · 物理学 2015-06-05 James G. Puckett , Karen E. Daniels

Cellular membranes exhibit a large variety of shapes, strongly coupled to their function. Many biological processes involve dynamic reshaping of membranes, usually mediated by proteins. This interaction works both ways: while proteins…

软凝聚态物质 · 物理学 2018-06-12 Afshin Vahid , Anđela Šarić , Timon Idema

The first-order phase transitions in the lattice model of Janus-like particles confined in slit-like pores are studied. We assume a cubic lattice with molecules that can freely change their orientation on a lattice site. Moreover, the…

软凝聚态物质 · 物理学 2017-02-13 M. Borówko , A. Patrykiejew , W. Rzysko , S. Sokołowski

We study the behaviour of interacting self-propelled particles, whose self-propulsion speed decreases with their local density. By combining direct simulations of the microscopic model with an analysis of the hydrodynamic equations obtained…

统计力学 · 物理学 2012-06-25 F. D. C. Farrell , J. Tailleur , D. Marenduzzo , M. C. Marchetti

We present a derivation from first principles of the coupled equations of motion of an active self-diffusiophoretic Janus motor and the hydrodynamic densities of its fluid environment that are nonlinearly displaced from equilibrium. The…

软凝聚态物质 · 物理学 2024-01-05 Bryan Robertson , Jeremy Schofield , Raymond Kapral

We study the interaction of small hydrophobic particles on the surface of an ultra-soft elastic gel, in which a small amount of elasticity of the medium balances the weights of the particles. The excess energy of the surface of the deformed…

软凝聚态物质 · 物理学 2014-06-09 Aditi Chakrabarti , Manoj K. Chaudhury

Previously, it has been shown that the direct correlation function for a Lennard-Jones fluid could be modeled by a sum of that for hard-spheres, a mean-field tail and a simple linear correction in the core region constructed so as to…

统计力学 · 物理学 2008-08-20 James F. Lutsko

Solutions of semiflexible polymers confined by repulsive planar walls are studied by density functional theory and Molecular Dynamics simulations, to clarify the competition between the chain alignment favored by the wall and the depletion…

软凝聚态物质 · 物理学 2016-05-25 Sergei A. Egorov , Andrey Milchev , Peter Virnau , Kurt Binder

The impact of confinement on self-assembly of particles interacting with short-range attraction and long-range repulsion (SALR) potential is studied for thermodynamic states corresponding to local ordering of clusters or layers in the bulk.…

软凝聚态物质 · 物理学 2014-11-17 Jakub Pękalski , Alina Ciach , Noé G. Almarza

We use the density functional method to examine the properties of the nonuniform (two-phase) fluid of two-level atoms, a part of which is excited. Basing on the analysis of the equation of state of a gas of two-level atoms, a part of which…

软凝聚态物质 · 物理学 2007-05-23 Oleg Derzhko , Vasyl Myhal

The discrepancy between the bright theoretical projections for two-dimensional (2D) Janus structures and the lack of experimental realisation of these structures motivated us to study the effect of structural disorder on the stability of…

材料科学 · 物理学 2022-05-18 Danil W. Boukhvalov