Computational Analysis of Viscoelastic Properties of Crosslinked Actin Networks
Figure 7
Effects of bending stiffness and thermal fluctuation on G′ and G″.
(A,B) Effects of bending stiffness of actin filaments, κb,A, on G′ (solid symbols) and G″ (open symbols) for a network crosslinked by ACPC (R = 0.021) at (A) γ = 0 and (B) γ = 0.4. κb,A = 1.056×10−18 (black circles), 1.056×10−19 (red triangles), and 1.056×10−20 Nm (blue diamonds). The changes in κb,A have large effects on G′ and G″ in (A) but not in (B) (C) Effects of thermal fluctuation (TF) of actin filaments on G′ at fs = 10 Hz as a function of γ and lp (calculated at 300 K). At high γ (≥0.4) or large lp (∼20 µm), TF plays no significant role in G′. On the contrary, at low γ and lp, G′ decreases without TF.