2009/08/03 by Michael Hinczewski, Roland R. Netz, Hinczewski, Michael +1
Chemical Engineering · Medicine · #Biomolecules (q-bio.BM) #Blood properties and coagulation #FOS: Biological sciences #FOS: Physical sciences #Rheology and Fluid Dynamics Studies #Soft Condensed Matter (cond-mat.soft)
paper · pdf · doi:10.48550/arxiv.0908.0376
openalex publication_date 2009/08/03 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28
We introduce an anisotropic mean-field approach for the dynamics of\nsemiflexible polymers under intermediate tension, the force range where a chain\nis partially extended but not in the asymptotic regime of a nearly straight\ncontour. The theory is designed to exactly reproduce the lowest order\nequilibrium averages of a stretched polymer, and treats the full complexity of\nthe problem: the resulting dynamics include the coupled effects of long-range\nhydrodynamic interactions, backbone stiffness, and large-scale polymer contour\nfluctuations. Validated by Brownian hydrodynamics simulations and comparison to\noptical tweezer measurements on stretched DNA, the theory is highly accurate in\nthe intermediate tension regime over a broad dynamical range, without the need\nfor additional dynamic fitting parameters.\n