Abstract
Microfluidics found its place in point of care diagnostics. Microfluidic devices on paper substrate are proposed on both channel-based and digital microfluidics (DMF). But fluid flow controlling on microfluidics paper-based analytical devices (µPADs) and post-processing on DMF devices have limitations. In this work a new hybrid paper-based device is proposed with the aim of resolving these limitations and expanding the microfluidics capabilities in point of care diagnostics. The hybrid paper-based microfluidics (HPMF) device is composed of a DMF device following a µPAD in a single substrate, in which the DMF part performs the preprocessing steps of the test on droplets and transfers the resulting droplet to the µPAD part of the device for post-processing steps. The fabrication process of the device is rapid and very low cost due to use of paper substrate and out of clean-room processes. The results show that the proposed HPMF device can perform droplet operations: moving, mixing, and splitting.
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The authors wish to thank Nourbakhsh J. Trading Company for supplying NEVOSIL® SI 7200.
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Abadian, A., Sepehri Manesh, S. & Jafarabadi Ashtiani, S. Hybrid paper-based microfluidics: combination of paper-based analytical device (µPAD) and digital microfluidics (DMF) on a single substrate. Microfluid Nanofluid 21, 65 (2017). https://doi.org/10.1007/s10404-017-1899-2
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DOI: https://doi.org/10.1007/s10404-017-1899-2