Experimental Characterization Of Electrical Current Leakage In Poly(Dimethylsiloxane) Microfluidic Devices

doi:10.1007/s10404-008-0331-3

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	Experimental Characterization Of Electrical Current Leakage In Poly(Dimethylsiloxane) Microfluidic Devices
	Sun JS; Vajandar SK; Xu DY(徐东艳); Kang YJ; Hu GQ(胡国庆); Li DQ; Li DY; Guoqing Hu(胡国庆), Deyu Li
发表期刊	Microfluidics and Nanofluidics
	2009
卷号	6 期号:5 页码:589-598
ISSN	1613-4982
摘要	Poly(dimethylsiloxane) (PDMS) is usually considered as a dielectric material and the PDMS microchannel wall can be treated as an electrically insulated boundary in an applied electric field. However, in certain layouts of microfluidic networks, electrical leakage through the PDMS microfluidic channel walls may not be negligible, which must be carefully considered in the microfluidic circuit design. In this paper, we report on the experimental characterization of the electrical leakage current through PDMS microfluidic channel walls of different configurations. Our numerical and experimental studies indicate that for tens of microns thick PDMS channel walls, electrical leakage through the PDMS wall could significantly alter the electrical field in the main channel. We further show that we can use the electrical leakage through the PDMS microfluidic channel wall to control the electrolyte flow inside the microfluidic channel and manipulate the particle motion inside the microfluidic channel. More specifically, we can trap individual particles at different locations inside the microfluidic channel by balancing the electroosmotic flow and the electrophoretic migration of the particle.
关键词	Microfluidics Current Leakage Pdms Particle Trapping/concentration Ac Pumping Capillary-electrophoresis Flow-control Analysis Systems Dna Separation Dielectrophoresis Fields Microelectrodes Electrolytes Microchannel Particles
DOI	10.1007/s10404-008-0331-3
收录类别	SCI
语种	英语
WOS记录号	WOS:000265773100002
关键词[WOS]	CAPILLARY-ELECTROPHORESIS ; FLOW-CONTROL ; ANALYSIS SYSTEMS ; DNA SEPARATION ; DIELECTROPHORESIS ; FIELDS ; MICROELECTRODES ; ELECTROLYTES ; MICROCHANNEL ; PARTICLES
WOS研究方向	Science & Technology - Other Topics ; Instruments & Instrumentation ; Physics
WOS类目	Nanoscience & Nanotechnology ; Instruments & Instrumentation ; Physics, Fluids & Plasmas
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/26588
专题	非线性力学国家重点实验室
通讯作者	Guoqing Hu(胡国庆), Deyu Li
推荐引用方式 GB/T 7714	Sun JS,Vajandar SK,Xu DY,et al. Experimental Characterization Of Electrical Current Leakage In Poly(Dimethylsiloxane) Microfluidic Devices[J]. Microfluidics and Nanofluidics,2009,6,5,:589-598.
APA	Sun JS.,Vajandar SK.,徐东艳.,Kang YJ.,胡国庆.,...&Guoqing Hu.(2009).Experimental Characterization Of Electrical Current Leakage In Poly(Dimethylsiloxane) Microfluidic Devices.Microfluidics and Nanofluidics,6(5),589-598.
MLA	Sun JS,et al."Experimental Characterization Of Electrical Current Leakage In Poly(Dimethylsiloxane) Microfluidic Devices".Microfluidics and Nanofluidics 6.5(2009):589-598.

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