Polymer translocation in an environment of active rods

Khalilian, Hamidreza; Sarabadani, Jalal; Ala-Nissilä, Tapio

doi:10.1103/physrevresearch.5.023107

Cited by 2 publications

(2 citation statements)

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“…As can be seen from the magnified segment of the polymer in figure 1(a), the tail and head monomers are in blue and red colors, respectively, and three beads in the body of each segment are in black color. At each time step, the direction of the SP force on each segment is updated according to the updated positions of the monomers, and a SP force F sp acts on the head of each segment in the direction of the tail bead toward the head bead of that segment denoted by ⃗ e h [79,86,[98][99][100][101]. Therefore, the vector of the SP force is parallel to ⃗ e h , i.e.…”

Section: Ld Simulationmentioning

confidence: 99%

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Translocation of an active polymer into a two dimensional circular nano-container

Rezaie-Dereshgi

Khalilian

Sarabadani

2023

J. Phys.: Condens. Matter

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Translocation dynamics of an active semi-flexible polymer through a nano-pore into a rigid two dimensional circular nano-container has been studied by using Langevin dynamics simulations. The results show that the force exponent $\beta$, for regime of small nano-container radius, i.e. $R \ll R_{\textrm{g}}$, where $R_{\textrm{g}}$ is the gyration radius of the passive semi-flexible polymer in two dimensional free space, is $\beta=-1$, while for large values of $R \gg R_{\textrm{g}}$ the asymptotic value of the force exponent is $\beta \approx -0.93$. The force exponent is defined by the scaling form of the average translocation time $\langle \tau \rangle \propto F_{\textrm{sp}}^{\beta}$, where $F_{\textrm{sp}}$ is the self-propelling force. Moreover, using the definition of the turning number (number of net turns of the polymer configuration) for the polymer inside the cavity, it has been found that at the end of translocation process for small value of $R$ and in the strong force limit the polymer configuration is more regular than the case in which the value of $R$ is large or the force is weak.

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Section: Ld Simulationmentioning

confidence: 99%

“…The monomers are tangentially experience the effective active forces exerted by the assay of the MPs [98]. In addition, using computer simulations the dynamics of an active polymer, whose monomers tangentially undergo the selfpropelling (SP) forces, has been studied [79,86,[99][100][101].…”

Section: Introductionmentioning

confidence: 99%