ArticleThe Journal of chemical physics2021
Shape recovery of deformed biomolecular droplets: Dependence on condensate viscoelasticity.
Article in The Journal of chemical physics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- Fusion dynamics of viscoelastic droplets: Similarities and differences with shape recovery.Biophysical journal · 2026Article
- Article
- Computational rheometry for modeling viscoelasticity and mechanical responses of biomolecular condensates.Biophysical journal · 2026Article
- Molecular origins of viscoelasticity in biomolecular condensates.The Journal of chemical physics · 2026Article
- Biomolecular condensate viscoelasticity is dictated by the interplay between single-molecule shape memory and mesh reconfigurability.bioRxiv : the preprint server for biology · 2025Article
- Computational rheometry of viscoelastic networks: From random graphs to biomolecular condensates.bioRxiv : the preprint server for biology · 2025Article
- Article
- Material properties of biomolecular condensates emerge from nanoscale dynamics.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- A calibration-free model of micropipette aspiration for measuring properties of protein condensates.Biophysical journal · 2024Article
- Macromolecular Regulation of the Material Properties of Biomolecular Condensates.The journal of physical chemistry letters · 2022Article
- Shear relaxation governs fusion dynamics of biomolecular condensates.Nature communications · 2021Article
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Abstract
A theoretical study on the shape dynamics of phase-separated biomolecular droplets is presented, highlighting the importance of condensate viscoelasticity. Previous studies on shape dynamics have modeled biomolecular condensates as purely viscous, but recent data have shown them to be viscoelastic. Here, we present an exact analytical solution for the shape recovery dynamics of deformed biomolecular droplets. The shape recovery of viscous droplets has an exponential time dependence, with the time constant given by the "viscocapillary" ratio, i.e., viscosity over interfacial tension. In contrast, the shape recovery dynamics of viscoelastic droplets is multi-exponential, with shear relaxation yielding additional time constants. During shape recovery, viscoelastic droplets exhibit shear thickening (increase in apparent viscosity) at fast shear relaxation rates but shear thinning (decrease in apparent viscosity) at slow shear relaxation rates. These results highlight the importance of viscoelasticity and expand our understanding of how material properties affect condensate dynamics in general, including aging.
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