Janus particle microshuttle: 1D directional self-propulsion modulated by AC electrical field

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	Janus particle microshuttle: 1D directional self-propulsion modulated by AC electrical field
	Chen, JL; Zhang, HY; Zheng X(郑旭); Cui HH(崔海航)
刊名	AIP ADVANCES
	2014-03
通讯作者邮箱	cuihaihang@xauat.edu.cn
卷号	4 期号:3 页码:31325
ISSN号	2158-3226
通讯作者	Cui, HH (reprint author), Xian Univ Architecture & Technol, Xian 710055, Peoples R China.
产权排序	[Chen, Jiliang; Zhang, Hongyan; Cui, Haihang] Xian Univ Architecture & Technol, Xian 710055, Peoples R China; [Zheng, Xu] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
合作状况	国内
中文摘要	A catalytic Janus particle is capable of gaining energy from the surrounding fuel solution to drive itself to move continuously, which has an important impact in different fields, especially the field of micro-systems. However, the randomness of self-propulsion at the microscale restricts its use in practice. Achieving a directed self-propelled movement would greatly promote the application of the Janus particle. We proved experimentally that an AC electric field was an effective way to suppress Brownian motion and control the direction of self-propelled movement. The self-propulsion and dielectrophoretic response of a 2 mu m Janus particle were observed and the related basic data were collected. Interdigital electrodes, 20 mu m in width, were energized in pulsed style to modulate the self-propulsion, which resulted in a shuttle-style motion in which a single Janus particle moved to and fro inside the strip electrode. The change of direction depends on its unique position: the catalyst side is always pointed outward and the orientation angle relative to the electrode is about 60 degrees. Numerical simulation also proved that this position is reasonable. The present study could be beneficial with regard to self-propulsion and AC electrokinetics of the Janus particle. (C) 2014 Author(s).
学科主题	Science & Technology - Other Topics; Materials Science; Physics
分类号	Q3
收录类别	SCI ; EI
资助信息	This work is funded by the National Natural Science Foundation of China (Grant Nos. 21005058, 11272322, and 11202219), the Specialized Research Fund for the Doctoral Programme of Higher Education of China (Grant No. 20106120120011), and the Shaanxi Provincial Department of Education Special Research Programme (Grant No. 11JK0530). The authors gratefully acknowledge Prof. Chen Li-Guo and Dr. Xu Xiao-Wei from SooChow University for their kind help with using their microfabrication facilities.
原文出处	http://dx.doi.org/10.1063/1.4868373
语种	英语
WOS记录号	WOS:000334213700026
公开日期	2014-06-05
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/48840]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Chen, JL,Zhang, HY,Zheng X,et al. Janus particle microshuttle: 1D directional self-propulsion modulated by AC electrical field[J]. AIP ADVANCES,2014,4(3):31325.
APA	Chen, JL,Zhang, HY,郑旭,&崔海航.(2014).Janus particle microshuttle: 1D directional self-propulsion modulated by AC electrical field.AIP ADVANCES,4(3),31325.
MLA	Chen, JL,et al."Janus particle microshuttle: 1D directional self-propulsion modulated by AC electrical field".AIP ADVANCES 4.3(2014):31325.