ArticleThe European physical journal. E, Soft matter2019
Fluctuation-induced hydrodynamic coupling in an asymmetric, anisotropic dumbbell.
Article in The European physical journal. E, Soft matter, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 3 citations in OpenAlex.
- Technology Roadmap of Micro/Nanorobots.ACS nano · 2025Review
- Cooperatively enhanced reactivity and "stabilitaxis" of dissociating oligomeric proteins.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- A Thermodynamic Limit on the Role of Self-Propulsion in Enhanced Enzyme Diffusion.Biophysical journal · 2019Article
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Authors and funding
3 authors at 1 institution in 3 countries.
Funding
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Abstract
We recently introduced a model of an asymmetric dumbbell made of two hydrodynamically coupled subunits as a minimal model for a macromolecular complex, in order to explain the observation of enhanced diffusion of catalytically active enzymes. It was shown that internal fluctuations lead to a negative contribution to the overall diffusion coefficient and that the fluctuation-induced contribution is controlled by the strength of the interactions between the subunits and their asymmetry. We develop the model by studying the effect of anisotropy on the diffusion properties of a modular structure. Using a moment expansion method we derive an analytic form for the long-time diffusion coefficient of an asymmetric, anisotropic dumbbell and show systematically its dependence on internal and external symmetry. The method provides a tractable, analytical route for studying the stochastic dynamics of dumbbell models. The present work opens the way to more detailed descriptions of the effect of hydrodynamic interactions on the diffusion and transport properties of biomolecules with complex structures.
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