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| 001 | 894290 | ||
| 005 | 20240610120055.0 | ||
| 024 | 7 | _ | |a 10.1063/5.0058150 |2 doi |
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| 024 | 7 | _ | |a 1089-7690 |2 ISSN |
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| 100 | 1 | _ | |a Mousavi, S. Mahdiyeh |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Active bath-induced localization and collapse of passive semiflexible polymers |
| 260 | _ | _ | |a Melville, NY |c 2021 |b American Institute of Physics |
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| 520 | _ | _ | |a The conformational and dynamical properties of a passive polymer embedded in a bath of active Brownian particles (ABPs) are studied by Langevin dynamics simulations. Various activities and ABP concentrations below and above the critical values for motility-induced phase separation (MIPS) are considered. In a homogeneous ABP fluid, the embedded polymer swells with increasing bath activity, with stronger swelling for larger densities. The polymer dynamics is enhanced, with the diffusion coefficient increasing by a power-law with increasing activity, where the exponent depends on the ABP concentration. For ABP concentrations in the MIPS regime, we observe a localization of the polymer in the low-density ABP phase associated with polymer collapse for moderate activities and a reswelling for high activities accom- panied by a preferred localization in the high-density ABP phase. Localization and reswelling are independent of the polymer stiffness, with stiff polymers behaving similarly to flexible polymers. The polymer collapse is associated with a slowdown of its dynamics and a significantly smaller center-of-mass diffusion coefficient. In general, the polymer dynamics can only partially be described by an effective (bath) tempera- ture. Moreover, the properties of a polymer embedded in a homogeneous active bath deviate quantitatively from those of a polymer composed of active monomers, i.e., linear chains of ABPs; however, such a polymer exhibits qualitatively similar activity-dependent features. |
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| 700 | 1 | _ | |a Gompper, Gerhard |0 P:(DE-Juel1)130665 |b 1 |
| 700 | 1 | _ | |a Winkler, Roland G. |0 P:(DE-Juel1)131039 |b 2 |e Corresponding author |u fzj |
| 773 | _ | _ | |a 10.1063/5.0058150 |g Vol. 155, no. 4, p. 044902 - |0 PERI:(DE-600)1473050-9 |n 4 |p 044902 |t The journal of chemical physics |v 155 |y 2021 |x 1089-7690 |
| 856 | 4 | _ | |y Published on 2021-07-22. Available in OpenAccess from 2022-07-22. |u https://juser.fz-juelich.de/record/894290/files/5.0058150.pdf |
| 856 | 4 | _ | |y Published on 2021-07-22. Available in OpenAccess from 2022-07-22. |u https://juser.fz-juelich.de/record/894290/files/poly_act_bath_rev.pdf |
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