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Berlin 2015 – scientific programme

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BP: Fachverband Biologische Physik

BP 9: Biomaterials and Biopolymers I (joint BP/CPP)

BP 9.6: Talk

Monday, March 16, 2015, 16:00–16:15, EB 202

Theory on linear viscoelasticity of a cytoskeletal network — •Tetsuya Hiraiwa and Roland Netz — Freie Universität Berlin, Germany

Mechanical properties of a cortical cytoskeleton, which is a network consisting of actin filaments and crosslinker proteins located underneath the cell membrane, govern the elastic and viscous resistances of living cells to deformation and are crucial for wide variety of cellular functions. I would like to present a theoretical method to evaluate linear viscoelasticity of a filamentous network like a cortical cytoskeleton based on properties of single segments. Using the method, we can explain a universal power-law in complex moduli, which is also found in several experiments and our numerical simulation.

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