Electrothermal enrichment of submicron particles in an insulator-based dielectrophoretic microdevice

doi:10.1002/elps.201700342

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	Electrothermal enrichment of submicron particles in an insulator-based dielectrophoretic microdevice
	Kale A ; Song L ; Lu XY(陆星宇); Yu LD ; Hu GQ(胡国庆); Xuan XC
发表期刊	ELECTROPHORESIS
	2018-03-01
卷号	39 期号:2018-05-06 页码:887-896
ISSN	0173-0835
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.
关键词	Electrokinetic Electrothermal flow Joule heating Microfluidics Particle enrichment
DOI	10.1002/elps.201700342
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000426501100020
关键词[WOS]	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
WOS类目	Biochemistry & Molecular Biology ; Chemistry
项目资助者	NSF [CBET-1704379] ; University 111 Project of China [B12019] ; NSFC [11272321, 11572334] ; LNM
论文分区	二类
力学所作者排名	5
引用统计	被引频次：31[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/311007/77923
专题	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.

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