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Mesoscopic structure of the periodically alternating layers of stretched homopolymer chains surrounded by perpendicularly oriented oligomeric tails is studied for the systems with both strong (ionic) and weak (hydrogen) interactions. We…

软凝聚态物质 · 物理学 2009-11-10 A. I. Olemskoi , I. Krakovsky , A. Savelyev

In this paper we study a two-dimensional directed self-avoiding walk model of a random copolymer in a random emulsion. The copolymer is a random concatenation of monomers of two types, $A$ and $B$, each occurring with density 1/2. The…

概率论 · 数学 2009-11-13 Frank den Hollander , Nicolas Pétrélis

The structural and thermodynamic properties of mixtures of colloidal spheres and non-adsorbing polymer chains are studied within a novel general two-component macromolecular liquid state approach applicable for all size asymmetry ratios.…

软凝聚态物质 · 物理学 2009-11-07 M. Fuchs , K. S. Schweizer

We study the effects of intrinsic sequence-dependent curvature for a two dimensional semiflexible biopolymer with short-range correlation in intrinsic curvatures. We show exactly that when not subjected to any external force, such a system…

软凝聚态物质 · 物理学 2015-05-14 Zicong Zhou , Bela Joos

A system defined by two coupled Ising models, with a bimodal random field acting in one of them, is investigated. The interactions among variables of each Ising system are infinite-ranged, a limit where mean field becomes exact. This model…

统计力学 · 物理学 2014-06-24 Octavio D. Rodriguez Salmon , Fernando Dantas Nobre

Despite their considerable practical and biological applications, the link between molecular properties, assembly conditions and self-organized structure in confined polymer solutions remains elusive. Here, we explore the lyotropic nematic…

软凝聚态物质 · 物理学 2023-03-21 Maxime M. C. Tortora , Daniel Jost

Intracellular protein patterns are described by (nearly) mass-conserving reaction-diffusion systems. While these patterns initially form out of a homogeneous steady state due to the well-understood Turing instability, no general theory…

斑图形成与孤子 · 物理学 2024-01-11 Henrik Weyer , Fridtjof Brauns , Erwin Frey

A simple model was constructed to describe the polar ordering of non-centrosymmetric supramolecular aggregates formed by self assembling triblock rodcoil polymers. The aggregates are modeled as dipoles in a lattice with an Ising-like…

软凝聚态物质 · 物理学 2009-10-31 M. Sayar , F. J. Solis , M. Olvera de la Cruz , S. I. Stupp

The phase behavior of a cross-linked polymer blend made of two incompatible species, $A$ and $B$, of different chemical nature is analyzed. Besides a homogeneous phase, this system also exhibits two microphases and a phase of total…

凝聚态物理 · 物理学 2007-05-23 Edilson Vargas , Marcia C. Barbosa

We present a theoretical model for predicting the phase behavior of polymer solutions in which phase separation competes with oligomerization. Specifically, we consider scenarios in which the assembly of polymer chains into stoichiometric…

软凝聚态物质 · 物理学 2024-07-31 Tianhao Li , W. Benjamin Rogers , William M. Jacobs

Motivated by the structure of networks of cross-linked cytoskeletal biopolymers, we study the orientationally ordered phases in two-dimensional networks of randomly cross-linked semiflexible polymers. We consider permanent cross-links which…

软凝聚态物质 · 物理学 2011-03-08 Martin Kiemes , Panayotis Benetatos , Annette Zippelius

We apply monomer-resolved computer simulations of supercoiled ring polymers under shear, taking full account of the hydrodynamic interactions, accompanied, in parallel, by simulations in which these are switched off. The combination of…

软凝聚态物质 · 物理学 2024-04-17 Christoph Schneck , Jan Smrek , Christos N. Likos , Andreas Zöttl

Heterogeneous distribution of passive and active domains in the chromosome plays a crucial role for its dynamic organization within the cell nucleus. Motivated by that here we investigate the steady-state conformation and dynamics of a…

软凝聚态物质 · 物理学 2024-09-27 Suman Majumder , Subhajit Paul

We study energy relaxation in a phenomenological model for polymer built from rheological considerations: a one dimensional nonlinear lattice with dissipative couplings. These couplings are well known in polymer's community to be possibly…

统计力学 · 物理学 2009-11-07 F. Gobet , S. Ciliberto , T. Dauxois

Polymer composites are ideal candidates for next generation biomimetic soft materials because of their exquisite bottom-up designability. However, the richness of behaviours comes at a price: the need for precise and extensive…

软凝聚态物质 · 物理学 2019-07-30 Davide Michieletto , Robert Fitzpatrick , Rae M Robertson-Anderson

Using combinatorial optimisation techniques we study the critical properties of the two- and the three-dimensional Ising model with uniformly distributed random antiferromagnetic couplings $(1 \le J_i \le 2)$ in the presence of a…

无序系统与神经网络 · 物理学 2022-06-08 Jean-Christian Anglès d'Auriac , Ferenc Iglói

We propose a solution strategy for a multimaterial minimum compliance topology optimization problem, which consists in finding the optimal allocation of a finite number of candidate (possibly anisotropic) materials inside a reference…

数值分析 · 数学 2018-07-04 Francesco Regazzoni , Nicola Parolini , Marco Verani

Scaffold proteins organize cellular processes by bringing signaling molecules into interaction, sometimes by forming large signalosomes. Several of these scaffolds are known to polymerize. Their assemblies should therefore not be understood…

定量方法 · 定量生物学 2020-03-06 Andrés Ortiz-Muñoz , Héctor F. Medina-Abarca , Walter Fontana

A co-polycondensation reaction is discussed analytically and by Monte-Carlo simulations where two reactive units compete for reactions with an alternating third reactive unit, whereby irreversible reactions replace bonds which are able to…

软凝聚态物质 · 物理学 2021-05-26 Michael Lang , Frank Böhme

Limited-valency colloidal particles can self-assemble into polymeric structures analogous to molecules. While their structural equilibrium properties have attracted wide attention, insight into their dynamics has proven challenging. Here,…