剪切力作用下红细胞的变形：小角光散射研究

Deformation of erythrocytes under shear: a small-angle light scattering study.

作者信息

Mazeron P, Muller S, el Azouzi H

机构信息

Groupe Physico-Chimie des Colloïdes, U.A. C.N.R.S. n. 406, Université Henri Poincaré Nancy 1, Faculté des Sciences, France.

出版信息

Biorheology. 1997 Mar-Apr;34(2):99-110. doi: 10.1016/S0006-355X(97)00007-3.

DOI:10.1016/S0006-355X(97)00007-3

PMID:9373393

Abstract

In this study, sharp small-angle light scattering (SALS) images of erythrocytes under increasing shear stresses in a Couette flow were obtained, and accurate measurements of the angular positions of the two first minima and maxima have been carried out. The deformed cells were assumed to be three-axis ellipsoids of constant volume for all shear stresses. Application of the Physical Optics Approximation (POA) then permitted the determination of the cell dimensions as a function of the applied shear stress. Our results agree with determinations obtained by other methods.

摘要

在本研究中，获得了在库埃特流中增加剪切应力下红细胞的尖锐小角光散射（SALS）图像，并对两个第一最小值和最大值的角位置进行了精确测量。对于所有剪切应力，假定变形细胞为体积恒定的三轴椭球体。然后应用物理光学近似（POA）可以确定细胞尺寸与所施加剪切应力的函数关系。我们的结果与通过其他方法获得的测定结果一致。