Droplet Ejection and Liquid-solid Separation from Covered Microfluidic Systems

摘要：

　　In droplet-based microfluidics,two different types of microsystems are used for droplet manipulation - covered systems based on parallel-plate devices,and open systems based on single-plate devices.Ejecting droplets from covered systems into an open system is an essential operation to build a complete analysis system combining the advantages of both covered and open systems.This paper presents theoretical study and experimental results for ejecting a water and/or oil droplet from a covered into an open system.We use a force analysis method to determine the condition required for a droplet to cross the open/covered edge and demonstrate droplet movements using electric actuation.A bevelled edge structure is developed to facilitate the final liquid-solid separation process,greatly reducing the required actuation voltage.

关键词： electrowetting electrowetting-on-dielectric (EWOD) microfluidics dielectrophoresis

作者: Weiqiang Wang Thomas B. Jones

作者单位: School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;D Department of Electrical and Computer Engineering,University of Rochester,Rochester,New York 14627,U

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-7

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）