Joule heating effects on electrokinetic focusing and trapping of particles in constriction microchannels
文献类型：期刊论文
| 作者 | Zhu JJ; Sridharan S; Hu GQ(胡国庆) ; Xuan XC; Hu, GQ
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| 刊名 | JOURNAL OF MICROMECHANICS AND MICROENGINEERING
 |
| 出版日期 | 2012-07-01 |
| 卷号 | 22期号:7页码:075011 |
| 通讯作者邮箱 | guoqing.hu@imech.ac.cn;xcxuan@clemson.edu |
| 关键词 | Continuous-Flow Particle Electroosmotic Flow Electrodeless Dielectrophoresis Temperature Electrophoresis Separation Transport Solutes Devices Systems |
| ISSN号 | 0960-1317 |
| 产权排序 | [Hu, Guoqing] Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China;[Zhu, Junjie; Sridharan, Sriram; Xuan, Xiangchun] Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USA |
| 通讯作者 | Hu, GQ ; Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China. |
| 合作状况 | 国际 |
| 中文摘要 | Joule heating (JH) is a ubiquitous phenomenon in electrokinetic microfluidic devices. Its effects on fluid and ionic species transport in capillary and microchip electrophoresis have been well studied. However, JH effects on the electrokinetic motion of microparticles in microchannels have been nearly unexplored in the literature. This paper presents an experimental investigation of JH effects on electrokinetic particle transport and manipulation in constriction microchannels under both pure dc and dc-biased ac electric fields. It is found that the JH effects reduce the dielectrophoretic focusing and trapping of particles, especially significant when dc-biased ac electric fields are used. These results are expected to provide a useful guidance for future designs of electrokinetic particle handling microdevices that will avoid JH effects or take advantage of them. |
| 学科主题 | 微机电系统中的流体力学问题 |
| 分类号 | 二类/Q2 |
| 收录类别 | SCI ; EI |
| 资助信息 | This work is supported by NSF under grant no CBET-0853873 and by Clemson University through a start-up package to XX. The support from the National 973 Project (grant no 2011CB707604), NSFC (grant no 50890182) and Knowledge Innovation Program of CAS (KJCX2-YW-H18) to GH is gratefully appreciated as well. We also acknowledge the Open Fund support from LNM. |
| 原文出处 | http://dx.doi.org/10.1088/0960-1317/22/7/075011 |
| 语种 | 英语 |
| WOS记录号 | WOS:000305890600025 |
| 公开日期 | 2013-01-18 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46692]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Hu, GQ |
| 推荐引用方式 GB/T 7714 | Zhu JJ,Sridharan S,Hu GQ,et al. Joule heating effects on electrokinetic focusing and trapping of particles in constriction microchannels[J]. JOURNAL OF MICROMECHANICS AND MICROENGINEERING,2012,22(7):075011. |
| APA | Zhu JJ,Sridharan S,胡国庆,Xuan XC,&Hu, GQ.(2012).Joule heating effects on electrokinetic focusing and trapping of particles in constriction microchannels.JOURNAL OF MICROMECHANICS AND MICROENGINEERING,22(7),075011. |
| MLA | Zhu JJ,et al."Joule heating effects on electrokinetic focusing and trapping of particles in constriction microchannels".JOURNAL OF MICROMECHANICS AND MICROENGINEERING 22.7(2012):075011. |
入库方式： OAI收割
来源：力学研究所
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