ArticleBiophysical journal2014
Dynamics of active semiflexible polymers.
Article in Biophysical journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 151 citations in OpenAlex.
- Behavior of Active Polymer Knots.Macromolecules · 2025Article
- Deciphering the intracellular forces shaping mitochondrial motion.Scientific reports · 2024Article
- Transcription-induced active forces suppress chromatin motion.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Worm blobs as entangled living polymers: from topological active matter to flexible soft robot collectives.Soft matter · 2023Review
- Polymer folding through active processes recreates features of genome organization.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Toward a 3D physical model of diffusive polymer chains.Frontiers in physics · 2023Article
- Full structural ensembles of intrinsically disordered proteins from unbiased molecular dynamics simulations.Communications biology · 2021Article
- Dynamics as a cause for the nanoscale organization of the genome.Nucleus (Austin, Tex.) · 2020Article
- Active Brownian Filamentous Polymers under Shear Flow.Polymers · 2018Article
- The flexibility and dynamics of the tubules in the endoplasmic reticulum.Scientific reports · 2017Article
- Identification of internal properties of fibres and micro-swimmers.Proceedings. Mathematical, physical, and engineering sciences · 2017Article
- Conformational Properties of Active Semiflexible Polymers.Polymers · 2016Article
- Random bursts determine dynamics of active filaments.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- Analysis of Single Locus Trajectories for Extracting In Vivo Chromatin Tethering Interactions.PLoS computational biology · 2015Article
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2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Active fluctuations, driven by processes that consume ATP, are prevalent in living cells and are mostly driven by different forms of molecular motors. Such motors often move and transmit forces along biopolymers, which in general can be treated as semiflexible chains. We present a theoretical analysis of the active (out of thermal equilibrium) fluctuation of semiflexible polymers, using both analytical and simulation methods. We find that enhanced diffusion, even superdiffusive, occurs in a well-defined temporal regime, defined by the thermal modes of the chain and the typical timescale of the activity. In addition, we find a dynamic resonance-like condition between the elastic modes of the chain and the duration of the active force, which leads to enhanced spatial correlation of local displacements. These results are in qualitative agreement with observations of cytoskeletal biopolymers, and were recently observed for the dynamics of chromatin in interphase cells. We therefore propose that the interplay between elasticity and activity is driving long-range correlations in our model system, and may also be manifest inside living cells.
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