Electrohydrodynamic Conduction Pump with Asymmetrical Electrode Structures in the Microchannels
Electrohydrodynamic Conduction Pump with Asymmetrical Electrode Structures in the Microchannels
复制标题
DOI：
10.1246/cl.170217
复制
发表时间：
2017-07-01
影响因子：
1.6
通讯作者：
Maeda, Shingo
中科院分区：
文献类型：
--
作者：
Sato, Tasuku;Yamanishi, Yoko;Maeda, Shingo
在这项研究中，我们已经开发了一种微流体泵，利用电流体动力学（EHD）传导的工作流体。环形泵已经在以前的EHD传导研究中使用，但这些需要三维排列的电极对，这使得很难缩小设备。在这里，我们提出了一种机制，以实现单向流体流动的微通道中，通过安排在一个平面上的非平行电极，以产生一个不对称的电场。这种设计的一个优点是，它可以使用微机电系统（MEMS）加工技术轻松精确地制造：这使我们能够将微泵和微通道集成到单个设备中。此外，泵产生的压力仅由电化学反应引起;由于不需要齿轮等机械部件，这有助于降低设备产生的噪音。
In this study, we have developed a microfluidic pump that utilizes the electrohydrodynamic (EHD) conduction of a working fluid. Ring-shaped pumps have been used in previous studies on EHD conduction, but these require a three-dimensional arrangement of electrode pairs, which makes it difficult to downsize the apparatus. Here, we propose a mechanism to achieve one-way fluid flow in the microchannels by arranging non-parallel electrodes in a plane to generate an asymmetric electric field. One advantage of this design is that it can be easily and precisely fabricated using microelectromechanical system (MEMS) processing techniques: this has allowed us to integrate a micropump and a microchannel into a single device. Moreover, the pressure generated by the pump is induced solely by electrochemical reactions; since mechanical components such as gears are not required, this helps reduce the noise generated by the device.