Direct Handwriting Manipulation of Droplets by Self-Aligned Mirror-Ewod Across a Dielectric Sheet

  title={Direct Handwriting Manipulation of Droplets by Self-Aligned Mirror-Ewod Across a Dielectric Sheet},
  author={Kai-Cheng Chuang and Shih-Kang Fan},
  journal={19th IEEE International Conference on Micro Electro Mechanical Systems},
In this paper, we demonstrate a novel approach to generate electrowetting on a dielectric sheet over a liquid electrode. A 12.5 μm-thick PVDC film (Saran wrap) was used as the dielectric sheet. Two important phenomena were found: (1) EWOD not only occurs on the manipulated droplet, but also the liquid electrode (mirror-EWOD), (2) the mirror-EWOD causes the manipulated droplet and the liquid electrode self-aligned when they are in comparable sizes. Based on these discoveries, a direct… CONTINUE READING


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