Microphase separation in nonequilibrium biomembranes
Sens, Pierre and Turner, Matthew S.. (2011) Microphase separation in nonequilibrium biomembranes. Physical Review Letters, Vol.106 (No.23). article no. 238101 . ISSN 0031-9007Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.106.238101
Compositional heterogeneities of cell membranes are thought to play an important role in many physiological processes. We study how variations in the membrane composition can be driven by nonthermal fluctuating forces and therefore show how these can occur relatively far from any critical point for the membrane. We show that the membrane steady state is not only controlled by the strength of the forces and how they couple to the membrane, but also by their dynamics: In a simple class of models this is captured by a single force correlation time. We conclude that the coupling of membrane composition to normal mechanical forces, such as might be exerted by polymerizing cytoskeleton filaments, could play an important role in controlling the steady state of a cell membrane that exhibits transient lateral modulations of its composition on length scales in the 10-100 nm regime.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics
Q Science > QH Natural history > QH301 Biology
|Divisions:||Faculty of Science > Physics|
|Library of Congress Subject Headings (LCSH):||Membranes (Biology), Nonequilibrium statistical mechanics|
|Journal or Publication Title:||Physical Review Letters|
|Publisher:||American Physical Society|
|Page Range:||article no. 238101|
|Funder:||France. Agence nationale de la recherche (ANR) , Engineering and Physical Sciences Research Council (EPSRC)|
|Grant number:||EP/E501311/1 (EPSRC)|
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