Fluid actuation on a wide gap electrode open-channel digital microfluidics system

Authors

Lou Serafin Lozada ⋅ PH National Institute of Physics, University of the Philippines Diliman
Timothy John Lomibao ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We report the actuation of water droplet on a novel open-channel digital microfluidics (OCDMF). This article discusses and verifies experimentally droplet actuation on electrode without pads and with wide gap between electrodes. Our design consists of thin strips of copper electrode etched from commercially available printed circuit board. Each electrode is 0.3 mm wide and separated from other electrodes by 2 mm. Droplet used was 10 μL at different actuation voltages. The electrodes were covered by a dielectric material and coated with wax for better hydrophobicity. Results show that voltage and contact angle during actuation obeys Lippmann-Young equation. An interesting behavior was also observed in the dynamics of droplet as a function of time.

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Issue

2011: Proceedings of the 29th Samahang Pisika ng Pilipinas National Physics Congress

Article ID

SPP2011-PB-47

Section

Poster Session PB

Published

2011-10-24

How to Cite

[1]

LS Lozada and TJ Lomibao, Fluid actuation on a wide gap electrode open-channel digital microfluidics system, Proceedings of the Samahang Pisika ng Pilipinas 29, SPP2011-PB-47 (2011). URL: https://proceedings.spp-online.org/article/view/SPP2011-PB-47.