Efficient Micro/Nanoparticle Concentration using Direct Current-Induced Thermal Buoyancy Convection for Multiple Liquid Media

doi:10.1021/acs.analchem.8b05105

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Efficient Micro/Nanoparticle Concentration using Direct Current-Induced Thermal Buoyancy Convection for Multiple Liquid Media
	Zhang KL4 ; Ren YK 2,3,4; Tao Y4 ; Liu WY 1; Jiang TY 4; Jiang HY 3,4
刊名	ANALYTICAL CHEMISTRY
	2019-04-02
卷号	91 期号:7 页码:4457-4465
ISSN号	0003-2700
DOI	10.1021/acs.analchem.8b05105
通讯作者	Ren, Yukun(rykhit@hit.edu.cn) ; Jiang, Hongyuan(jhy_hit@hit.edu.cn)
英文摘要	Thermal-based microparticle focusing has recently received increasing attention due to its noninvasive nature and simple manipulation mechanism. However, its further application is limited by current complicated fluid heating systems and low particle focusing velocity. Using simple indium tin oxide-made microheaters, herein we propose a flexible and novel approach for efficient particle focusing based on direct current-induced thermal buoyancy convection. Importantly, for avoiding possible electrochemical reactions on the electrode, the microheaters are isolated from the granular fluids of interest by a thin glass slide. The concentration performance of the designed chip was first demonstrated by statically focusing 4-mu m silica particles, yeast cells, silica particles in insulating buffer, and 100-nm copper microspheres. Also the trapping of a mixture of 5-mu m and 2-mu m polystyrene microbeads indicated that the chip can either simultaneously concentrate two kinds of particles or selectively focus the heavier ones by adjusting the voltages. Then the different concentration patterns of microbeads exhibited that the microspheres can be flexibly manipulated by changing the configurations of microheaters. Furthermore, for the first time, we achieved thermal-based continuous particle focusing in both conducting and insulating solutions using buoyancy convection, demonstrating that this method can be utilized to achieve both static and continuous particle manipulations in multiple liquid media. Finally, the feasibility of this device in effective wear measurement of machines was demonstrated by conducting systematic experiments of focusing nanocopper particles in the hydraulic oil. Therefore, this presented approach would be promising for a broad range of on-chip applications.
分类号	一类
资助项目	National Natural Science Foundation of China[11672095] ; National Natural Science Foundation of China[11872165] ; National Natural Science Foundation of China[11702075] ; National Natural Science Foundation of China[11702035] ; National Natural Science Foundation of China[SKLRS201803B] ; State Key Laboratory of Robotics and System (HIT) ; Opening Fund of State Key Laboratory of Nonlinear Mechanics
WOS关键词	OPTOELECTRONIC TWEEZERS ; DIELECTRIC PARTICLES ; COLLOIDAL PARTICLES ; SEPARATION ; FLOW ; MANIPULATION ; SIZE ; MICROCHANNEL ; MICROPARTICLES ; NANOPARTICLES
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000463683300028
资助机构	National Natural Science Foundation of China ; State Key Laboratory of Robotics and System (HIT) ; Opening Fund of State Key Laboratory of Nonlinear Mechanics
其他责任者	Ren, Yukun ; Jiang, Hongyuan
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/78699]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Changan Univ, Sch Elect & Control Engn, Xian 710064, Shanxi, Peoples R China 2.Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Harbin Inst Technol, State Key Lab Robot & Syst, Harbin 150001, Heilongjiang, Peoples R China; 4.Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Heilongjiang, Peoples R China;
推荐引用方式 GB/T 7714	Zhang KL,Ren YK,Tao Y,et al. Efficient Micro/Nanoparticle Concentration using Direct Current-Induced Thermal Buoyancy Convection for Multiple Liquid Media[J]. ANALYTICAL CHEMISTRY,2019,91(7):4457-4465.
APA	Zhang KL,Ren YK,Tao Y,Liu WY,Jiang TY,&Jiang HY.(2019).Efficient Micro/Nanoparticle Concentration using Direct Current-Induced Thermal Buoyancy Convection for Multiple Liquid Media.ANALYTICAL CHEMISTRY,91(7),4457-4465.
MLA	Zhang KL,et al."Efficient Micro/Nanoparticle Concentration using Direct Current-Induced Thermal Buoyancy Convection for Multiple Liquid Media".ANALYTICAL CHEMISTRY 91.7(2019):4457-4465.