Electrothermal enrichment of submicron particles in an insulator-based dielectrophoretic microdevice
文献类型：期刊论文
| 作者 | Kale A; Song L; Lu XY(陆星宇); Yu LD; Hu GQ(胡国庆) ; Xuan XC
|
| 刊名 | ELECTROPHORESIS
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 39期号:2018-05-06页码:887-896 |
| 关键词 | Electrokinetic Electrothermal flow Joule heating Microfluidics Particle enrichment |
| ISSN号 | 0173-0835 |
| DOI | 10.1002/elps.201700342 |
| 英文摘要 | Insulator-based dielectrophoresis (iDEP) exploits in-channel hurdles and posts etc. to create electric field gradients for various particle manipulations. However, the presence of such insulating structures also amplifies the Joule heating in the fluid around themselves, leading to both temperature gradients and electrothermal flow. These Joule heating effects have been previously demonstrated to weaken the dielectrophoretic focusing and trapping of microscale and nanoscale particles. We find that the electrothermal flow vortices are able to entrain submicron particles for a localized enrichment near the insulating tips of a ratchet microchannel. This increase in particle concentration is reasonably predicted by a full-scale numerical simulation of the mass transport along with the coupled charge, heat and fluid transport. Our model also predicts the electric current and flow pattern in the fluid with a good agreement with the experimental observations. |
| 分类号 | 二类 |
| URL标识 | 查看原文 |
| WOS关键词 | ON-A-CHIP ; ELECTRODELESS DIELECTROPHORESIS ; TEMPERATURE-MEASUREMENT ; ANALYSIS SYSTEMS ; SEPARATION ; DEVICES ; CELLS ; FLOW ; MICROFLUIDICS ; BIOPARTICLES |
| WOS研究方向 | Biochemical Research Methods ; Chemistry, Analytical |
| 语种 | 英语 |
| WOS记录号 | WOS:000426501100020 |
| 资助机构 | NSF [CBET-1704379] ; University 111 Project of China [B12019] ; NSFC [11272321, 11572334] ; LNM |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/77923]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USA 2.Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Hefei, Anhui, Peoples R China 3.Chinese Acad Sci, LNM, Inst Mech, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kale A,Song L,Lu XY,et al. Electrothermal enrichment of submicron particles in an insulator-based dielectrophoretic microdevice[J]. ELECTROPHORESIS,2018,39(2018-05-06):887-896. |
| APA | Kale A,Song L,陆星宇,Yu LD,胡国庆,&Xuan XC.(2018).Electrothermal enrichment of submicron particles in an insulator-based dielectrophoretic microdevice.ELECTROPHORESIS,39(2018-05-06),887-896. |
| MLA | Kale A,et al."Electrothermal enrichment of submicron particles in an insulator-based dielectrophoretic microdevice".ELECTROPHORESIS 39.2018-05-06(2018):887-896. |
入库方式： OAI收割
来源：力学研究所
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