# [1]张丽,朱晓璐,倪中华.应用于类球体细胞电旋转分析中的介电参数求解算法[J].东南大学学报(自然科学版),2012,42(2):280-285.[doi:10.3969/j.issn.1001-0505.2012.02.017] 　Zhang Li,Zhu Xiaolu,Ni Zhonghua.Dielectric parameter solving algorithm in electrorotation analysis of spherical cells[J].Journal of Southeast University (Natural Science Edition),2012,42(2):280-285.[doi:10.3969/j.issn.1001-0505.2012.02.017] 点击复制 应用于类球体细胞电旋转分析中的介电参数求解算法() 分享到： var jiathis_config = { data_track_clickback: true };

42

2012年第2期

280-285

2012-03-20

## 文章信息/Info

Title:
Dielectric parameter solving algorithm in electrorotation analysis of spherical cells

Author(s):
School of Mechanical Engineering, Southeast University, Nanjing 211189, China

Keywords:

TP391
DOI:
10.3969/j.issn.1001-0505.2012.02.017

Abstract:
A dielectric model with single concentric shell of spherical cells is established based on film theory. The forces of the cells in a static flow field under the action of electrorotation are analyzed, and the force equilibrium equations are derived to obtain dielectric parameters of each shell by the balance of the rotating torque and the Stokes fluid drag torque. Then, the particle swarm optimization algorithm improved with the constriction factor is used to solve the equations. The influence of the change in the constriction factor on the solution results is also discussed. This algorithm is validated with Granulocytes as an example. The calculated membrane conductivity, membrane relative permittivity, cytoplasm conductivity and cytoplasm relative permittivity are 7.25μS/m, 10.3, 0.487 S/m and 136, respectively. Besides, the change in the constriction factor just affects the search probability of each solution, and the search probability needed gets the highest value with the acceleration factor of 2.015. The calculated results are consistent with the empirical data, showing that the proposed algorithm can obtain high accuracy and stability.

## 参考文献/References:

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