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5 March 2021 Electrowetting induced μ-droplet actuation using Fluoropor in digital microfluidics (DMF)
Andreas Goralczyk, Kai Sachsenheimer, Frederik Kotz, Dorothea Helmer, Bastian E. Rapp
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Proceedings Volume 11637, Microfluidics, BioMEMS, and Medical Microsystems XIX; 1163707 (2021) https://doi.org/10.1117/12.2578472
Event: SPIE BiOS, 2021, Online Only
Abstract
Digital microfluidics (DMF) represent an important subfield of microfluidics due to the ability to resolve complex processes into a sequence of programmable discrete steps with small liquid volumes. The most commonly used surfaces for liquid actuation have an unstructured hydrophobic layer as the top-coat having biofouling as a main obstacle. In this work we present a novel material, Fluoropor a nanofoamed Fluoropolymer that can be easily fabricated, coated and utilized for DMF. Fluoropor-films were fabricated with different porosities simply by adjusting the ratio of added porogens. The fabricated films ware integrated in a commercial DMF-device and it was shown that droplets can be moved and merged on top of a 22 μm thick Fluoropor-coating.
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Andreas Goralczyk, Kai Sachsenheimer, Frederik Kotz, Dorothea Helmer, and Bastian E. Rapp "Electrowetting induced μ-droplet actuation using Fluoropor in digital microfluidics (DMF)", Proc. SPIE 11637, Microfluidics, BioMEMS, and Medical Microsystems XIX, 1163707 (5 March 2021); https://doi.org/10.1117/12.2578472
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KEYWORDS
Microfluidics
Electrodes
Liquids
Excel
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