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Conformations of a single semiflexible polymer chain dissolved in a low molecular weight liquid crystalline solvents (nematogens) are examined by using a mean field theory. We takes into account a stiffness and partial orientational…

软凝聚态物质 · 物理学 2009-11-07 Akihiko Matsuyama

We study the model of a partially directed flexible or semi-flexible homopolymer on a square lattice, subject to an externally applied force, in a direction either parallel to, or perpendicular to the preferred direction. The polymer is…

统计力学 · 物理学 2015-05-19 Pui-Man Lam , Yi Zhen

By large-scale Monte Carlo simulations of semiflexible polymers in $d=2$ dimensions the applicability of the Kratky-Porod model is tested. This model is widely used as "standard model" for describing conformations and force versus extension…

软凝聚态物质 · 物理学 2011-11-15 Hsiao-Ping Hsu , Wolfgang Paul , Kurt Binder

Semiflexible polymers are ubiquitous in natural and artificial systems, where their intermediate rigidity gives rise to rich structural and dynamical behavior. Confinement plays a central role in these behaviors, as spatial restrictions can…

软凝聚态物质 · 物理学 2026-03-31 Nasir Amiri , Jonathan P. Singer , Xin Yong

It has been revealed by mean-field theories and computer simulations that the nature of the collapse transition of a polymer is influenced by its bending stiffness $\epsilon_{\rm b}$. In two dimensions, a recent analytical work demonstrated…

软凝聚态物质 · 物理学 2009-11-13 Jie Zhou , Zhong-Can Ou-Yang , Haijun Zhou

The persistence length of macromolecules is one of their basic characteristics, describing their intrinsic local stiffness. However, it is difficult to extract this length from physical properties of the polymers, different recipes may give…

软凝聚态物质 · 物理学 2013-03-12 Hsiao-Ping Hsu , Wolfgang Paul , Kurt Binder

We consider a semiflexible polymer in $\mathbb Z^d$ which is a random interface model with a mixed gradient and Laplacian interaction. The strength of the two operators is governed by two parameters called lateral tension and bending…

概率论 · 数学 2020-06-24 Alessandra Cipriani , Biltu Dan , Rajat Subhra Hazra

We theoretically investigate the kinetics of the folding transition of a single semiflexible polymer. In the folding transition, the growth rate decrease with an increase in the number of monomers in a collapsed domain, suggesting that the…

软凝聚态物质 · 物理学 2009-11-13 Natsuhiko Yoshinaga

We study the dynamics of a single chain polymer confined to a two dimensional cell. We introduce a kinetically constrained lattice gas model that preserves the connectivity of the chain, and we use this kinetically constrained model to…

统计力学 · 物理学 2011-11-09 Armin Rahmani , Claudio Castelnovo , Jeremy Schmit , Claudio Chamon

We investigate the addition of stiffness to the lattice model of hydrogen-bonded polymers in two and three dimensions. We find that, in contrast to polymers that interact via a homogeneous short-range interaction, the collapse transition is…

软凝聚态物质 · 物理学 2009-11-13 J Krawczyk , AL Owczarek , T Prellberg

We study the thermodynamic properties of a semiflexible polymer confined inside strips of widths L<=9 defined on a square lattice. The polymer is modeled as a self-avoiding walk and a short range interaction between the monomers and the…

统计力学 · 物理学 2007-05-23 Jurgen F. Stilck

We study a model of a semiflexible long chain polymer confined to a two-dimensional slit of width $w$, and interacting with the walls of the slit. The interactions with the walls are controlled by Boltzmann weights $a$ and $b$, and the…

统计力学 · 物理学 2019-12-03 Nicholas R. Beaton , Leo Li , Jonathon Liu , Thomas Wong

The transport of deformable particles through porous media underlies a wealth of applications ranging from filtration to oil recovery to the transport and spreading of biological agents. Using direct numerical simulations, we analyze the…

软凝聚态物质 · 物理学 2020-06-09 Brato Chakrabarti , Charles Gaillard , David Saintillan

We employ the recently introduced generalized microcanonical inflection point method for the statistical analysis of phase transitions in flexible and semiflexible polymers and study the impact of the bending stiffness upon the character…

软凝聚态物质 · 物理学 2022-12-05 Dilimulati Aierken , Michael Bachmann

While the dynamics of a fully flexible polymer ejecting a capsid through a nanopore has been extensively studied, the ejection dynamics of semiflexible polymers has not been properly characterized. Here we report results from simulations of…

生物物理 · 物理学 2017-11-08 Riku P. Linna , Pauli M. Suhonen , Joonas Piili

The dynamic structure factor of semiflexible polymers in solution is derived from the wormlike chain model. Special attention is paid to the rigid constraint of an inextensible contour and to the hydrodynamic interactions. For the cases of…

软凝聚态物质 · 物理学 2009-10-28 Klaus Kroy , Erwin Frey

We directly visualize single polymers with persistence lengths ranging from $\ell_p=0.05$ to 16 $\mu$m, dissolved in the nematic phase of rod-like {\it fd} virus. Polymers with sufficiently large persistence length undergo a coil-rod…

By means of extensive replica-exchange simulations of generic coarse-grained models for helical polymers, we systematically investigate the structural transitions into all possible helical phases for flexible and semiflexible elastic…

生物物理 · 物理学 2015-09-23 Matthew J. Williams , Michael Bachmann

In this brief report, we revisit analytical calculation [Mishra, {\it et al.}, Physica A {\bf 323} (2003) 453 and Mishra, NewYork Sci. J. {\bf{3(1)}} (2010) 32.] of the persistent length of a semiflexible homopolymer chain in %the extremely…

统计力学 · 物理学 2013-06-27 Pramod Kumar Mishra

Using path integral technique, we show exactly that for a semiflexible biopolymer in constant extension ensemble, no matter how long the polymer and how large the external force, the effects of short range correlations in the…

生物物理 · 物理学 2009-11-13 Zicong Zhou , Bela Joos