Dielectric Behavior of Oblate Spheroidal Particles：Application to Erythrocytes Suspensions  

作　　者：HUANGji－Ping 

机构地区：[1]Departmentofphysics,theChineseUniversityofHongKong,Shatin,NT,Hong,China

出　　处：《Communications in Theoretical Physics》2003年第4期506-512,共7页理论物理通讯（英文版）

摘　　要：We have investigated the pressure effect on the eletrorotation (ER) spectrum of living cell suspensions byconsidering the particle shape effect. In particular, we consider coated oblate spheroidal particles and present a theoreticalstudy of ER based on the spectral representation theory. Analytic expressions for the characteristic frequency as wellas the dispersion strength can be obtained, thus simplifying the fitting of experimental data on oblate spheroidal cellsthat abound in the literature. From the theoretical analysis, we find that the cellshape, coating as well as materialparameters can change the ER spectrum. We demonstrate a good agreement between our theoretical predictions andexperimental data on human erthrocytes suspensions.

关 键 词：oblate spheroid pressure effect electrorotation (ER) ERYTHROCYTE 

分 类 号：Q24[生物学—细胞生物学]