Dynamics of a two-dimensional active polymer chain with a rotation-restricted active head

Abstract

The dynamics of a two-dimensional active polymer composed of an active Brownian particle (ABP) at the head and a passive polymer chain is investigated using Langevin dynamics simulation. The ABP...

Adsorption of active polymers on attractive nanoparticles

“…44 It is known that the restriction of the rotation of the ABP in the RRAP model slows down the speed of the rotation of the head ABP. 27 The slower the head ABP rotates, the stronger the active force accelerates the motion of the RRAP. Moreover, the restriction will also influence the direction of the active force.…”

“…For r F,12 = 1.2 σ case, the maximum rotation angle of the ABP is about π/2. 27 For the FRAP, the first passive monomer is bonded to the center of the ABP as shown in Fig. 2b.…”

“…25,26 Additionally, the effective diffusion coefficient of an active polymer is greater than that of a passive polymer. 27 The adsorption/desorption of active polymers fully composed of self-propelled particles on/ from attractive surfaces was strongly affected by the magnitude of the active force on self-propelled particles. 28,29 Biopolymers are often in crowded environments such as living cells, which are filled with various proteins, nucleic acids, chromatins, actins, lipid membranes, and more.…”

“…25,26 Additionally, the effective diffusion coefficient of an active polymer is greater than that of a passive polymer. 27 The adsorption/desorption of active polymers fully composed of self-propelled particles on/from attractive surfaces was strongly affected by the magnitude of the active force on self-propelled particles. 28,29…”

“…This active polymer model was built based on active matters, such as spermatozoa, microtubules, and Escherichia coli , in real systems. 27 Our main goal is to study how the active force of the head ABP in the active polymer affects the critical adsorption point (CAP) of the active polymer. We find that the active force hinders the adsorption of the polymer.…”