Table of Contents
Micromachines, Volume 10, Issue 2 (February 2019)
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Cover Story (view full-size image) Digital microfluidic chips (DMFs) manipulate droplets on the surface of electrode arrays coated [...] Read more. Digital microfluidic chips (DMFs) manipulate droplets on the surface of electrode arrays coated with a dielectric film and are actuated by applying an electrical potential, providing a practical way for fluidic manipulation in microfluidic devices. However, the fabrication of a DMF chip is rather complicated. A set of patterned electrode arrays and a thin dielectric layer must be fabricated, which currently rely on lithography and sputtering, inkjet printing, or printed circuit boards with etching. We newly developed an affordable alternative to fabricate DMF paper chips that adapted ballpoint pens for drawing electrode patterns and a commercial food warp as a substitute for the dielectric layer, providing a simple, easy, and rapid way to fabricate paper-based DMF chips. View this paper