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We study pore blockade times for a translocating polymer of length $N$, driven by a field $E$ across the pore in three dimensions. The polymer performs Rouse dynamics, i.e., we consider polymer dynamics in the absence of hydrodynamical…

软凝聚态物质 · 物理学 2008-02-15 Henk Vocks , Debabrata Panja , Gerard T. Barkema , Robin C. Ball

One of the most fundamental quantities associated with polymer translocation through a nanopore is the translocation time $\tau$ and its dependence on the chain length $N$. Our simulation results based on both the bond fluctuation Monte…

软凝聚态物质 · 物理学 2008-11-08 Kaifu Luo , Tapio Ala-Nissila , See-Chen Ying , Pawel Pomorski , Mikko Karttunen

We consider a polymer of length $N$ translocating through a narrow pore in the absence of external fields. Characterization of its purportedly anomalous dynamics has so far remained incomplete. We show that the polymer dynamics is anomalous…

软凝聚态物质 · 物理学 2007-10-08 Debabrata Panja , Gerard T. Barkema , Robin C. Ball

In this paper, we investigate the microscopic dynamics of a polymer of length $N$ translocating through a narrow pore. Characterization of its purportedly anomalous dynamics has so far remained incomplete. We show that the polymer dynamics…

软凝聚态物质 · 物理学 2007-07-25 Debabrata Panja , Gerard T. Barkema , Robin C. Ball

We study the passage times of a translocating polymer of length $N$ in three dimensions, while it is pulled through a narrow pore with a constant force $F$ applied to one end of the polymer. At small to moderate forces, satisfying the…

软凝聚态物质 · 物理学 2008-02-14 Debabrata Panja , Gerard T. Barkema

We study the translocation process of a polymer in the absence of external fields for various pore diameters $b$ and membrane thickness $L$. The polymer performs Rouse and reptation dynamics. The mean translocation time $<\tau_t>$ that the…

软凝聚态物质 · 物理学 2007-05-23 Joanne Klein Wolterink , Gerard T. Barkema , Debabrata Panja

We use the Bond Fluctuation Model (BFM) to study the pore-blockade times of a translocating polymer of length $N$ in two dimensions, in the absence of external forces on the polymer (i.e., unbiased translocation) and hydrodynamic…

软凝聚态物质 · 物理学 2010-01-05 Debabrata Panja , Gerard T. Barkema

We study the translocation of a flexible polymer through extended patterned pores using molecular dynamics (MD) simulations. We consider cylindrical and conical pore geometries that can be controlled by the angle of the pore apex $\alpha$.…

软凝聚态物质 · 物理学 2026-02-11 Andri Sharma , Abhishek Chaudhuri , Rajeev Kapri

We investigate the dynamics of polymer translocation through nanopores under external driving by 3D Langevin Dynamics simulations, focusing on the scaling of the average translocation time $\tau$ versus the length of the polymer, $\tau\sim…

软凝聚态物质 · 物理学 2010-01-04 Kaifu Luo , Tapio Ala-Nissila , See-Chen Ying , Ralf Metzler

We study the dynamics of the passage of a polymer through a membrane pore (translocation), focusing on the scaling properties with the number of monomers $N$. The natural coordinate for translocation is the number of monomers on one side of…

软凝聚态物质 · 物理学 2009-11-07 Jeffrey Chuang , Yacov Kantor , Mehran Kardar

We investigate the dynamics of polymer translocation through a nanopore under an externally applied field using the 2D fluctuating bond model with single-segment Monte Carlo moves. We concentrate on the influence of the field strength $E$,…

软凝聚态物质 · 物理学 2011-08-26 Kaifu Luo , Ilkka Huopaniemi , Tapio Ala-Nissila , See-Chen Ying

We employ a three-dimensional molecular dynamics to simulate translocation of a polymer through a nanopore driven by an external force. The translocation is investigated for different three pore diameter and two different external forces.…

计算物理 · 物理学 2019-12-03 Mohammadreza Niknam Hamidabad , Rouhollah Haji Abdolvahab

We investigate polymer translocation through a nanopore under a pulling force using Langevin dynamics simulations. We concentrate on the influence of the chain length $N$ and the pulling force $F$ on the translocation time $\tau$. The…

软凝聚态物质 · 物理学 2007-06-27 Ilkka Huopaniemi , Kaifu luo , Tapio Ala-Nissila , See-Chen Ying

Polymer translocation in three dimensions out of planar confinements is studied in this paper. Three membranes are located at $z=-h$, $z=0$ and $z=h_1$. These membranes are impenetrable, except for the middle one at $z=0$, which has a…

软凝聚态物质 · 物理学 2008-01-29 Debabrata Panja , Gerard T. Barkema , Robin C. Ball

The transport of polymers with folded configurations across membrane pores is investigated theoretically by analyzing simple discrete stochastic models. The translocation dynamics is viewed as a sequence of two events: motion of the folded…

统计力学 · 物理学 2009-11-13 Stanislav Kotsev , Anatoly B. Kolomeisky

We consider the passage of long polymers of length N through a hole in a membrane. If the process is slow, it is in principle possible to focus on the dynamics of the number of monomers s on one side of the membrane, assuming that the two…

软凝聚态物质 · 物理学 2009-11-10 Yacov Kantor , Mehran Kardar

We show the presence of both a minimum and clear oscillations in the frequency dependence of the translocation time of a polymer described as a unidimensional Rouse chain driven by a spatially localized oscillating linear potential. The…

软凝聚态物质 · 物理学 2010-09-16 Alessandro Fiasconaro , Juan José Mazo , Fernando Falo

We investigate the dynamics of polymer translocation through a nanopore using two-dimensional Langevin dynamics simulations. In the absence of external driving force, we consider a polymer which is initially placed in the middle of the pore…

软凝聚态物质 · 物理学 2007-05-23 Ilkka Huopaniemi , Kaifu Luo , Tapio Ala-Nissila , See-Chen Ying

Here using LAMMPS molecular dynamics (MD) software, we simulate polymer translocation in 2 dimensions. We do the simulations for weak and moderate forces and for different pore diameters. Our results show that in both non-equilibrium and…

计算物理 · 物理学 2018-04-26 Mohammadreza Niknam Hamidabad , Rouhollah Haji Abdolvahab

We determine the scaling exponents of polymer translocation (PT) through a nanopore by extensive computer simulations of various microscopic models for chain lengths extending up to N=800 in some cases. We focus on the scaling of the…

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