Department of Mechanical Engineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784, South Korea.
Biomicrofluidics. 2010 Apr 21;4(2):024102. doi: 10.1063/1.3398258.
In a droplet transport based on electrowetting on dielectrics, the parallel-plate configuration is more popular than the single-plate one because the droplet transport becomes increasingly difficult without cover plate. In spite of the improved transport performance, the parallel-plate configuration often limits the access to the peripheral components, requesting the removal of the cover plate, the single-plate configuration. We investigated the fundamental features of droplet transport for the single-plate configuration. We compared the performance of several switching methods with respect to maximum speed of successive transport without failure and suggested nonfloating switching method which is inherently free from the charge-residue problem and exerts greater force on a droplet than conventional switching methods. A simple theory is provided to understand the different results for the switching methods.
在基于电润湿的液滴传输中，平行板结构比单板结构更受欢迎，因为没有盖板，液滴传输会变得越来越困难。尽管平行板结构提高了传输性能，但它经常限制了对周边组件的访问，需要移除盖板，采用单板结构。我们研究了单板结构液滴传输的基本特征。我们比较了几种切换方法在无故障连续传输的最大速度方面的性能，并提出了非浮置切换方法，该方法固有地避免了电荷残留问题，并比传统的切换方法对液滴施加更大的力。提供了一个简单的理论来理解切换方法的不同结果。
