Knotting and adsorption of end-grafted active polymers

Soft Matter, Journal Year: 2025, Volume and Issue: 21(10), P. 1873 - 1883

Published: Jan. 1, 2025

The adsorption of end-grafted active polymers is significantly influenced by the presence knots in polymer. In this study, composed an head and passive chain investigated using Langevin dynamics simulations. relationship between checked varying rotational inertia J head. effect becomes more pronounced at larger as persistence time force on increased increasing J. As a result, polymer hindered critical surface attraction strength with rising results are primarily attributed to probability Pknot leads obvious decrease number adsorbed monomers. Furthermore, we find that knotting process slower than influence relatively weaker strength. Our simulation reveal increase can thus weaken

Language: Английский

---

Transport of partially active polymers in chemical gradients

Soft Matter, Journal Year: 2025, Volume and Issue: 21(10), P. 1835 - 1840

Published: Jan. 1, 2025

The transport of molecules for chemical reactions is critically important in various cellular biological processes. Despite thermal diffusion being prevalent many biochemical processes, it unreliable any sort directed or preferential accumulation molecules. In this paper, we propose a strategy motion which the are transported by partially active polymeric structures. These polymers assumed to be Rouse chains, monomers connected via harmonic springs and these chains studied environments that have activity varying spatially. such facilitated chemical/activity gradients generate an effective drift. By marginalizing out degrees freedom system, obtain Fokker-Planck equation modes polymer. particular, solve steady state distribution center mass its mean first passage time reach intended destination. We focus on how arrangement units within polymer affects steady-state dynamic behavior they can optimized achieve high rapid motility.

Language: Английский

---

Height-Switching of Active Polymers in Binary Polymer Brushes

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: May 24, 2025

Language: Английский

---

Conformation and Dynamics of a Long Active Polymer Chain Confined in a Circular Cavity

Chinese Journal of Polymer Science, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Language: Английский

---