Takano Y, Sakanishi A
Department of Physics, Faculty of General Studies, Gunma University, Maebashi, Japan.
Biorheology. 1988;25(1-2):123-8. doi: 10.3233/bir-1988-251-219.
To consider the effects of the viscoelasticity of cytoplasm on the relaxation phenomenon of red blood cell suspensions, we calculate the complex intrinsic viscosity [eta*] = lim(eta* - eta)/eta c of the disperse system of spherical c----0 cells as a function of the frequency, where eta* is the complex viscosity in suspensions, eta the medium viscosity and c the volume concentration of the cells. The cell consists of a viscoelastic membrane and a viscoelastic cytoplasm. The viscoelasticity of the membrane is described by the Voigt model, while the viscoelasticity of the cytoplasmic region is described either by the Maxwell model or by the Voigt model. The interfacial tension is taken into account on both the interfaces of the membrane. The results of [eta*] are compared with the ones in the case in which the cytoplasmic region is purely viscous liquid.
为了研究细胞质的粘弹性对红细胞悬浮液弛豫现象的影响，我们计算了球形细胞分散体系的复本征粘度[η*] = lim(η* - η)/η c，其中η是悬浮液中的复粘度，η是介质粘度，c是细胞的体积浓度，[η]是频率的函数。细胞由粘弹性膜和粘弹性细胞质组成。膜的粘弹性由Voigt模型描述，而细胞质区域的粘弹性由Maxwell模型或Voigt模型描述。在膜的两个界面上都考虑了界面张力。将[η*]的结果与细胞质区域为纯粘性液体的情况进行了比较。
