6 papers
How Spatially Modulated Activity Reshapes Active Polymer Conformations
Paolo Malgaretti, Emanuele Locatelli
Active polymers are driven out of equilibrium by internal forces and exhibit conformational properties that differ fundamentally from those of passive chains. Here we study how spa…
Geometrical entanglement and alignment regulate self-organization in active ring polymer suspensions
Juan Pablo Miranda, Emanuele Locatelli, Cristian Micheletti +2
We study the emerging self-organization in active ring suspensions, focusing on how the rings' orientational order and geometric entanglement vary with density and spatial confinem…
Optimal Translocation of Living \& Active Filaments in Confinement
Marin Vatin, Rosa Sinaasappel, Renske Kamping +3
Active filament translocation through confined spaces is central to processes ranging from DNA transport through nanopores to cytoskeletal dynamics in cell migration. Here, we use…
Active Polymer Behavior in Two Dimensions: A Comparative Analysis of Tangential and Push-Pull Models
Giulia Janzen, Juan Pablo Miranda, José Martín-Roca +4
In this work, we compare the structural and dynamic behavior of active filaments in two dimensions using tangential and push-pull models, including a variant with passive end monom…
Tangentially Active Polymers in Cylindrical Channels
José Martín-Roca, Emanuele Locatelli, Valentino Bianco +2
We present an analytical and computational study characterizing the structural and dynamical properties of an active filament confined in cylindrical channels. We first outline the…
Coil-to-globule collapse of active polymers: a Rouse perspective
P. Malgaretti, E. Locatelli, C. Valeriani
We derive an effective Rouse model for tangentially active polymers, characterized by a constant active force tangent to their backbone. In particular, we show that, once extended…