Next Article in Journal
Stabilization of Inverse Miniemulsions by Silyl-Protected Homopolymers
Next Article in Special Issue
Evaluation of Thermally Induced Degradation of Branched Polypropylene by Using Rheology and Different Constitutive Equations
Previous Article in Journal
Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement
Previous Article in Special Issue
Semiflexible Polymers in the Bulk and Confined by Planar Walls
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessFeature PaperArticle
Polymers 2016, 8(8), 304; doi:10.3390/polym8080304

Conformational Properties of Active Semiflexible Polymers

Theoretical Soft Matter and Biophysics, Institute of Complex Systems and Institute for Advanced Simulation, Forschungszentrum Jülich, D-52425 Jülich, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Martin Kröger
Received: 29 June 2016 / Revised: 3 August 2016 / Accepted: 4 August 2016 / Published: 12 August 2016
(This article belongs to the Special Issue Semiflexible Polymers)
View Full-Text   |   Download PDF [1044 KB, uploaded 12 August 2016]   |  

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 surrounding 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 independently 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 essential for the polymer conformations. Our analytical calculations predict a strong dependence of the relaxation times on the activity. In particular, semiflexible polymers exhibit a crossover from a bending elasticity-dominated dynamics to the flexible polymer dynamics with increasing activity. This leads to a significant activity-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. View Full-Text
Keywords: semiflexible polymer; active Brownian particle; active polymer; polymer conformations; polymer dynamics semiflexible polymer; active Brownian particle; active polymer; polymer conformations; polymer dynamics
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Eisenstecken, T.; Gompper, G.; Winkler, R.G. Conformational Properties of Active Semiflexible Polymers. Polymers 2016, 8, 304.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top