4.7 Article

Polymer-chain configurations in active and passive baths

Journal

PHYSICAL REVIEW E
Volume 106, Issue 6, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.106.064606

Keywords

-

Funding

  1. MCIN/AEI [PID2021-122369NB-100]
  2. FLAMEL program [NSF DGE-1258425]
  3. REU (NSF) program [GR10002751]

Ask authors/readers for more resources

The configurations of polymers in out-of-equilibrium baths have implications in biological systems. Comparing with thermal-like baths, active baths affect the polymer's Kuhn length and lead to more prominent bends in their configurations.
The configurations taken by polymers embedded in out-of-equilibrium baths may have broad implications in a variety of biological systems. As such, they have attracted considerable interest, particularly in simulation studies. Here we analyze the distribution of configurations taken by a passive flexible chain in a bath of hard, self-propelled, vibrated disks and systematically compare it to that of the same flexible chain in a bath of hard, thermal-like, vibrated disks. We demonstrate experimentally that the mean length and mean radius of gyration of both chains agree with Flory's law. However, the Kuhn length associated with the number of correlated monomers is smaller in the case of the active bath, corresponding to a higher effective temperature. Importantly, the active bath does not just simply map on a hot equilibrium bath. Close examination of the chains' configurations indicates a marked bias, with the chain in the active bath more likely assuming configurations with a single prominent bend.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available