Lipid Membrane Domains Control Actin Network Viscoelasticity
Daniel · 2024
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Description
Membrane domains can bend and soften the cell's actin skin, Daniel Arnold and Satoshi Takatori show in a 2024 study. The catalog creator field holds only the fragment "Daniel", while the head byline names both authors. Cell membranes carry clusters of proteins and lipids that interact with the viscoelastic actin network beneath. How phase-separating lipid domains and that network mechanically influence each other was poorly understood.
The team engineered two-dimensional lipid condensates inside a thin actin network. The network's anisotropic stresses deformed the condensates into triangular shapes with sharp corners, unseen in three-dimensional gels. Coarsening of the domains sped the network's relaxation, effectively softening the composite. Changing membrane composition shifted the elastic-to-viscous crossover on demand. Such composites may serve as coatings or separation membranes.
Catalog record
| CREATOR | Daniel |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 43 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |