Surface viscoelastic effects in cell cleavage.
The effect of passive surface traction on the cleavage of cells is incorporated in the cytokinesis hydrodynamic model of Zinemanas and Nir [Biomechanics of cell Division, pp. 281-305, Plenum Press, New York (1987)]. Different rheological behaviours were examined to model the surface tensions which arise due to the passive deformation of the cortex: a Mooney-Rivlin material, an STZC material and a viscoelastic material. The calculations show that passive surface tensions may play a significant role in determining the local surface deformations as well as in the modulation of the surface forces. Varying the rheological model has limited effect on the overall deformations. The latter appear to be affected mostly by contractile filament interactions.
Zinemanas
D
D
Department of Chemical Engineering, Israel Institute of Technology, Haifa.
Nir
A
A
D002455:Cell Division / Q000502:physiology*; D004548:Elasticity; D008433:Mathematics; D008954:Models, Biological; D012212:Rheology; D013500:Surface Tension; D014783:Viscosity