| 交流电热效应操控纳米粒子在芯片实验室中的应用 |
| |
| 引用本文： | 连萌,吴杰,姜洪源,杨胡坤.交流电热效应操控纳米粒子在芯片实验室中的应用[J].东南大学学报,2007,23(4):534-539. |
| |
| 作者姓名： | 连萌 吴杰 姜洪源 杨胡坤 |
| |
| 作者单位： | 田纳西大学电子计算机工程系 美国诺克斯维尔37996(连萌，吴杰)，哈尔滨工业大学机电工程学院 哈尔滨150001(姜洪源，杨胡坤) |
| |
| 基金项目： | US National Science Foundation ( No ECS-0448896)，Tennessee Science Alliance Award |
| |
| 摘 要： | 为寻求一种驱动电导率(大于0.02S/m)溶液的新方法,探讨了利用交流电热效应驱动高电导率微流体.根据交流电热效应理论,建立了交流电热粒子诱捕物理模型,利用仿真软件FEMLAB对其进行仿真分析研究,并通过实验对其进行验证.实验结果表明:利用特定的微电极芯片结构和交流电热效应,能驱动流体电导率高达1.53S/m的微流体,实现了在低电势下的粒子诱捕.利用交流电热效应驱动微流体,不仅能够实现对微粒的诱捕,而且输入信号电势低,受微流体影响小,容易与芯片集成.研究结果为设计交流电热效应芯片实验室提供了参考依据.
|
| 关 键 词： | 交流电热 粒子诱捕 电热效应 数值仿真 |
| 收稿时间： | 2007-04-26 |
| 修稿时间： | 2007年4月26日 |
Manipulation of nanoparticles by AC electrothermal effect in laboratory-on-a-chip applications |
| |
| Lian Meng,Wu Jie,Jiang Hongyuan,Yang Hukun.Manipulation of nanoparticles by AC electrothermal effect in laboratory-on-a-chip applications[J].Journal of Southeast University(English Edition),2007,23(4):534-539. |
| |
| Authors: | Lian Meng Wu Jie Jiang Hongyuan Yang Hukun |
| |
| Institution: | 1, Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville 37996, USA;2 School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China |
| |
| Abstract: | Microflow driven by AC electrothermal (ACET) effect is explored in order to seek new methods for pumping electrolytes with high conductivity fluid (more than 0.02 S/m) at microscale. Based on the ACET theory, a physical model for particle trapping is established by a set of electrostatics, heat transfer and fluid dynamic equations. Further, fluid velocity fields are predicted using the software FEMLAB. Experiments are performed which verify the numerical results. The experimental results show that with appropriate electrode design, ACET effect can work on fluids with conductivity up to 1.53 S/m and trap particles at a low voltage. ACET devices can be readily integrated on chip into a microsystem. This offers insight into designing ACET lab-chips. |
| |
| Keywords: | AC electrokinetics particle trap electrothermal effect numerical simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
