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Open AccessFeature PaperArticle

A Flexible Method for Nanofiber-based 3D Microfluidic Device Fabrication for Water Quality Monitoring

School of Mechanical and Electronic Engineering, Lingnan Normal University, Zhanjiang 524048, China
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Micromachines 2020, 11(3), 276; https://doi.org/10.3390/mi11030276 (registering DOI)
Received: 20 February 2020 / Revised: 3 March 2020 / Accepted: 5 March 2020 / Published: 6 March 2020
(This article belongs to the Special Issue Micromachined Environmental Sensors)
Water pollution seriously affects human health. Accurate and rapid detection and timely treatment of toxic substances in water are urgently needed. A stacked multilayer electrostatic printing technique was developed for making nanofiber-based microfluidic chips for water-quality testing. Nanofiber membrane matrix structures for microfluidic devices were fabricated by electrospinning. A hydrophobic barrier was then printed through electrostatic wax printing. This process was repeatedly performed to create three-dimensional nanofiber-based microfluidic analysis devices (3D-µNMADs). Flexible printing enabled one-step fabrication without the need for additional alignment or adhesive bonding. Practical applications of 3D-µNMADs include a colorimetric platform to quantitatively detect iron ion concentrations in water. There is also great potential for personalized point-of-care testing. Overall, the devices offer simple fabrication processes, flexible prototyping, potential for mass production, and multi-material integration. View Full-Text
Keywords: nanofiber-based; 3D microfluidic chip; water-quality monitoring; electrostatic printing nanofiber-based; 3D microfluidic chip; water-quality monitoring; electrostatic printing
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Chen, X.; Mo, D.; Gong, M. A Flexible Method for Nanofiber-based 3D Microfluidic Device Fabrication for Water Quality Monitoring. Micromachines 2020, 11, 276.

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