微／纳流控系统电渗流研究进展  

ADVANCES IN THE RESEARCH OF ELECTROOSMOTIC FLOWS IN MICRO/NANOFLUIDIC SYSTEMS

作　　者：吴健康[1] 龚磊[1] 陈波[1] 曹侃[1] 

机构地区：[1]华中科技大学力学系,武汉国家光电实验室,武汉430074

出　　处：《力学进展》2009年第5期555-565,共11页Advances in Mechanics

基　　金：国家自然科学基金资助项目(10872076,50805059)~~

摘　　要：简要介绍了微/纳流控系统中双电层和电渗流的基本原理、当前研究热点以及最新进展。从胶体界面理论出发,基于流体连续性模型和微纳米尺度流动的多物理场数值分析法,介绍了电渗流特性,如焦耳热效应、反离子效应、表面电场调控双电层、双流体输运和周期电渗输运等电渗流控制方法,最后对电渗流测量作简要介绍。Micro/nanofluidic system is an interdisciplinary research frontier associated with fluid mechanics, biology, chemistry, electricity and heat transfer, and electroosmosis is one of the most important foundamental problems associated with fluid mechanics in micro/nanofluidic system. With rapid advances in micro/nanofluidic system a variety of electroosmosis phenomena, especially in nona-scale, has attracted great attentions in academic sector. Electric double layer and electroosmotic flows play an important role in functional analysis and optimal design of micro/nanofluidic chips. To provide a brief review in micro/nanofluidic field this paper presents respectively foundamental principle of electric double layer and electroosmosis, current research hotspot and latest prograsses in micro/nanofluidic systems. Based on colloidal and interface theory, continuum model of fluid mechanics and numerical simulation of multi-physics interaction this paper reviews current hotspots associated with electroosmotic flows in micro/nanofluidic systems, such as Joule heating effects, reverse ionic effects, double-fluid transport, AC electroosmosis, periodical fluid transport, field-modulating electric double layer and electroosmosis controlling. Finaly, a brief review is given for measurement methodologies of electroosmosis in micro/nanofluidic systems.

关 键 词：微/纳流控系统 电渗流 双电层 

分 类 号：TV223.1[水利工程—水工结构工程] TP24[自动化与计算机技术—检测技术与自动化装置]