刘军山

个人信息Personal Information

研究员

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:机械工程学院

学科:机械电子工程. 机械制造及其自动化

办公地点:机械工程学院知方楼6005室

联系方式:0411-84707713

电子邮箱:liujs@dlut.edu.cn

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Impedance monitoring of droplets in a microfluidic chip

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论文类型:期刊论文

发表时间:2015-08-01

发表刊物:Micro and Nanosystems

收录刊物:EI、Scopus

卷号:7

期号:1

页面范围:60-63

ISSN号:18764029

摘要:We present the use of impedance monitoring to determine the geometrical characteristics and the ionic concentration of droplets in a microchannel. A compact impedance monitoring system is developed based on an embedded computer that can provide an adjustable excitation signal from 2 KHz to 2 MHz. Aqueous droplets are continuously formed by hydrodynamic focusing and then directed into a primary channel for monitoring with embedded electrodes in a microfluidic chip. With the monitoring system, the correlation between the electrical amplitude and the ionic concentration in droplets is investigated and the correlation coefficient is 0.98. Moveover ? 2015 Bentham Science Publishers.