| 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
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| Source Publication | Microfluidics and Nanofluidics
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| 2009 | |
| Volume | 6Issue:5Pages:589-598 |
| ISSN | 1613-4982 |
| Abstract | 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. |
| Keyword | 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 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000265773100002 |
| WOS Keyword | CAPILLARY-ELECTROPHORESIS ; FLOW-CONTROL ; ANALYSIS SYSTEMS ; DNA SEPARATION ; DIELECTROPHORESIS ; FIELDS ; MICROELECTRODES ; ELECTROLYTES ; MICROCHANNEL ; PARTICLES |
| WOS Research Area | Science & Technology - Other Topics ; Instruments & Instrumentation ; Physics |
| WOS Subject | Nanoscience & Nanotechnology ; Instruments & Instrumentation ; Physics, Fluids & Plasmas |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/26588 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Guoqing Hu(胡国庆), Deyu Li |
| Recommended Citation 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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