东北大学学报(自然科学版) ›› 2024, Vol. 45 ›› Issue (8): 1065-1072.DOI: 10.12068/j.issn.1005-3026.2024.08.001

• 信息与控制 •    下一篇

基于双电场叠加效应的诱导电荷电渗调控方法

陈晓明1,2, 沈默1,2, 刘顺1,2, 赵勇1,2   

  1. 1.东北大学秦皇岛分校 控制工程学院,河北 秦皇岛 066004
    2.东北大学秦皇岛分校 河北省微纳精密光学传感与检测技术重点实验室,河北 秦皇岛 066004
  • 收稿日期:2023-04-03 出版日期:2024-08-15 发布日期:2024-11-12
  • 作者简介:陈晓明(1990-),男,河南郑州人,东北大学秦皇岛分校讲师,博士
    赵 勇(1973-),男,辽宁沈阳人,东北大学教授,博士生导师.
  • 基金资助:
    河北省自然科学基金资助项目(A2022501004);中央高校基本科研业务费专项资金资助项目(N2223013)

Regulation Method of Induced-Charge Electro-Osmosis Based on Superposition Effect of Dual Electric Fields

Xiao-ming CHEN1,2, Mo SHEN1,2, Sun LIU1,2, Yong ZHAO1,2   

  1. 1.School of Control Engineering,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China
    2.Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology,Qinhuangdao 066004,China. Corresponding author: CHEN Xiao-ming,E-mail: chenxiaoming@neuq. edu. cn
  • Received:2023-04-03 Online:2024-08-15 Published:2024-11-12

摘要:

为了从多种细胞群体中提取纯净细胞群或者从复杂的样本中提取所需成分,提出了一种基于双电场叠加效应的诱导电荷电渗调控新方法,研究诱导电荷电渗漩涡的重塑机理及其颗粒操控性能.首先,建立多物理场耦合仿真模型并研究双电场叠加作用下诱导电荷电渗漩涡的非对称演变机理.其次,设计并加工颗粒操控器件,搭建颗粒操控实验系统.然后,研究不同电压下非对称诱导电荷电渗漩涡对单种颗粒的聚集和纵向偏移特性.最后,研究非对称诱导电荷电渗漩涡对不同颗粒的聚集和分离特性.结果表明:此方法能够以简单的控制方式实现微尺度颗粒的聚集、偏移和分离,其在环境检测、疾病诊断领域方面具有巨大的应用潜力.

关键词: 诱导电荷电渗, 双极性电极, 颗粒聚集, 颗粒分离, 微流控器件

Abstract:

In order to extract pure cell populations from multiple cell populations or to extract the required components from complex samples, a novel regulation method of induced?charge electro?osmotic (ICEO) is proposed, based on the superposition effect of dual electric fields, to study the remodeling mechanism of the ICEO vortex and its particle control performance. Firstly, a multi?physical coupling simulation model is established and the asymmetric evolution mechanism is studied. Secondly, the particle control device is designed and processed, and the particle control experimental system is built. Then, the aggregation and longitudinal migration characteristics of single particle induced by asymmetrically ICEO vortices at different voltages are studied. Finally, aggregation and separation characteristics of various particles within the asymmetric ICEO vortices are explored. The results show that this method can achieve the aggregation, migration and separation of micro?scale particles in a simple control way, and it has great application potential in the field of environmental detection and disease diagnosis.

Key words: induced?charge electro?osmosis(ICEO), bipolar electrode, particle aggregation, particle separation, microfluidic device

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