Conformational properties of active semiflexible polymers

Abstract

The conformational properties of flexible and semiflexible polymers exposed to active noise are studied theoretically. The noise may originate from the interaction of the polymer with surround- ing active (Brownian) particles or from the inherent motion of the polymer itself, which may be composed of active Brownian particles. In the latter case, the respective monomers are indepen- dently propelled in directions changing diffusively. For the description of the polymer, we adopt the continuous Gaussian semiflexible polymer model. Specifically, the finite polymer extensibility is taken into account which turns out to be essentially for the polymer conformations. Our analytical calculations predict a strong dependence of the relaxation times on the activity. In particular, semi- flexible polymers exhibit a crossover from a bending-elasticity-dominated to the flexible-polymer dynamics with increasing activity. This leads to a significant noise-induced polymer shrinkage over a large range of self-propulsion velocities. For large activities, the polymers swell and their extension becomes comparable to the contour length. The scaling properties of the mean square end-to-end distance with respect to the polymer length and monomer activity are discussed.

References in corpus (17)

• The hydrodynamics of swimming microorganisms
• Self-motile colloidal particles: from directed propulsion to random walk
• Physics of Microswimmers - Single Particle Motion and Collective Behavior
• Fluid dynamics and noise in bacterial cell-cell and cell-surface scattering
• Direct measurement of the flow field around swimming microorganisms
• Pressure and Phase Equilibria in Interacting Active Brownian Spheres
• Gravitaxis of asymmetric self-propelled colloidal particles
• Multidimensional Stationary Probability Distribution for Interacting Active Particles
• Nonequilibrium equation of state in suspensions of active colloids
• Dynamical mean-field theory and weakly non-linear analysis for the phase separation of active Brownian particles
• How does a flexible chain of active particles swell?
• Unusual swelling of a polymer in a bacterial bath
• Activity induced collapse and re-expansion of rigid polymers
• Can the self-propulsion of anisotropic microswimmers be described by using forces and torques?
• Cluster dynamics and cluster size distributions in systems of self-propelled particles
• Dynamics of Semiflexible Polymers in a Flow Field
• Semiflexible polymers under external fields confined to two dimensions

Cited by in corpus (46)

• Computational models for active matter
• The physics of active polymers and filaments
• Globule-like conformation and enhanced diffusion of active polymers
• Flagellar Dynamics of Chains of Active Janus Particles Fueled by an AC electric field
• Collective Dynamics of Self-propelled Semiflexible Filaments
• Dynamically Generated Patterns in Dense Suspensions of Active Filaments
• Active turbulence in microswimmer suspensions -- the role of active hydrodynamic stress and volume exclusion
• Structure and dynamics of a self-propelled semiflexible filament
• Active polymer rings: activity-induced collapse and dynamical arrest
• Enhanced rotational motion of spherical squirmer in polymer solutions
• Active Colloidal Molecules
• Conformation and dynamics of a self-avoiding active flexible polymer
• Entropy production and work fluctuation relations for a single particle in active bath
• Active Brownian filaments with hydrodynamic interactions: conformations and dynamics
• Emergent collective behavior of active Brownian particles by visual perception
• Effects of inertia on conformation and dynamics of tangentially-driven active filaments
• Tangentially Driven Active Polar Linear Polymers -- An Analytical Study
• Active diffusion of self-propelled particles in flexible polymer networks
• Anomalous diffusion for active Brownian particles cross-linked to a networked polymer: Langevin dynamics simulation and theory
• The Coil-Globule transition in self-avoiding active polymers
• Anisotropic dynamics of a self-assembled colloidal chain in an active bath
• Time-dependent properties of interacting active matter: dynamical behavior of one-dimensional systems of self-propelled particles
• Reconfiguration, swelling and tagged monomer dynamics of a single polymer chain in Gaussian and non-Gaussian active baths
• Dynamics of Active Polar Ring Polymers
• Semiflexible polymer in a gliding assay: reentrant transition, role of turnover and activity
• Statistical properties of a tangentially driven active filament
• Migration of Active Rings in Porous Media
• Morphological and dynamical properties of semiflexible filaments driven by molecular motors
• Hydrodynamics of polymers in an active bath
• Transcription-induced active forces suppress chromatin motion
• Active Dynamics of Linear Chains and Rings in Porous Media
• Beating to rotational transition of a clamped active ribbon-like filament
• Dynamic Clustering of Active Rings
• Effective forces between active polymers
• Self-induced hydrodynamic coil-stretch transition of active polymers
• Three-body problem for Langevin dynamics with different temperatures
• Hydrodynamic pursuit by cognitive self-steering microswimmers
• Delayed excitations induce polymer looping and coherent motion
• Simulating active agents under confinement with Dissipative Particles (hydro)Dynamics
• Simulating wet active polymers by multiparticle collision dynamics
• Characteristic features of self-avoiding active Brownian polymers under linear shear flow
• Conformational statistics of non-equilibrium polymer loops in Rouse model with active loop extrusion
• Folding-unfolding transition of active polymer on the reconfiguration of bidirectional tangential active force
• Diffusion of an Active Particle Bound to a Generalized Elastic Model: Fractional Langevin Equation
• Spiral folding of a flexible chain of chiral active particles
• Two-dimensional active polar semiflexible polymer under shear flow