Confinement-driven states and activity-induced escape of semiflexible polymers in soft traps
Medicine
Similar papers
Preprint
Sep 2026
Active Hydrodynamics Couples Polymer Organization, Shape Fluctuations, and Motility in Deformable Droplets
We study semiflexible active polymers confined within a soft, deformable droplet suspended in a fluid using dissipative particle dynamics (DPD) simulations. Extensile and contractile force dipoles along the polymer backbone generate distinct hydrodynamic flow fields that mediate effective interactions between polymer s...
Ritu R. Raj, P. B. Sunil Kumar
· 0 citations
Open access
Sep 2026
Confinement controls the stochastic onset of single-cell rotation.
Single cells confined by the extracellular matrix can exhibit rotational motion, yet the physical mechanisms underlying its onset and persistence remain unclear. Here, we address this gap with a cellular phase field model that couples cell deformation, cell polarization governed by stochastic excitable dynamics, and co...
S. Echeverría-Alar, B. N. Narasimhan, S. Fraley et al.
· Proceedings of the National... · 0 citations
Open access
Aug 2026
The elasticity of semiflexible polymers with reversible spontaneous curvature in two dimensions.
Many semiflexible filaments exhibit structural asymmetries that lead to a curved ground state (curvature in the absence of thermal fluctuations, external forces, or torques). This property is known as spontaneous curvature. Many semiflexible polymers can reversibly develop spontaneous curvature through internal conform...
Donghyeon Kim, P. Benetatos
· Journal of Chemical Physics · 0 citations
Preprint
Sep 2026
Transport of Deformable Vesicles Driven by Chiral Active Brownian Particles
Active matter systems can generate mechanical stresses that deform their surroundings, providing a route to transport and shape dynamics far from equilibrium. Deformable vesicles containing active particles offer a minimal setting in which such active stresses are directly coupled to boundary mechanics. Here, we use nu...
Dipak Patra, A. K. Dasanna
· 0 citations
Preprint
Sep 2026
Measures of Chaotic Advection in Simulations of Active Nematics
Active nematics are non-equilibrium fluids composed of rod-like self-propelled units that collectively generate large-scale coherent flows. Here, we focus on a canonical experimental system: an active nematic fluid in $2D$ driven by ATP, composed of densely packed, extended microtubule (MT) bundles cross-linked by kine...
Md Mainul Hasan Sabbir, Brandon Klein, D. A. Beller et al.
· 0 citations
Preprint
Sep 2026
Active elastic theory of self-aligning solids
Active disordered solids including dense human crowds and epithelial cells under confinement exhibit striking system-scale oscillatory spatiotemporal patterns. These are linked to a local feedback mechanism, self-alignment, that aligns the direction of a particle's motility vector to the total force. Simulations and ex...
Sander C. Kammeraat, Silke E. Henkes
· 0 citations