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3D printing for lab-on-a-chip devices with 20 μm channels
Author(s): Gregory P. Nordin; Hua Gong; Matthew Viglione; Kent Hooper; Adam T. Woolley
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Paper Abstract

While there is great interest in 3D printing for microfluidic device fabrication, the challenge has been to achieve feature sizes that are in the truly microfluidic regime (<100 μm). The fundamental problem is that commercial tools and materials, which excel in many other application areas, have not been developed to address the unique needs of microfluidic device fabrication. Consequently, we have created our own stereolithographic 3D printer and materials that are specifically tailored to meet these needs. We review our recent work and show that flow channels as small as 18 µm x 20 µm can be reliably fabricated, as well as compact active elements such as valves and pumps. With these capabilities, we demonstrate highly integrated 3D printed microfluidic devices that measure only a few millimeters on a side, and that integrate separate chip-to-world interfaces through high density interconnects (up to 88 interconnects per square mm) that are directly 3D printed as part of a device chip. These advances open the door to 3D printing as a replacement for expensive cleanroom fabrication processes, with the additional advantage of fast (30 minute), parallel fabrication of many devices in a single print run due to their small size.

Paper Details

Date Published: 4 March 2019
PDF: 8 pages
Proc. SPIE 10932, Emerging Digital Micromirror Device Based Systems and Applications XI, 1093207 (4 March 2019); doi: 10.1117/12.2511369
Show Author Affiliations
Gregory P. Nordin, Brigham Young Univ. (United States)
Hua Gong, Brigham Young Univ. (United States)
Matthew Viglione, Brigham Young Univ. (United States)
Kent Hooper, Brigham Young Univ. (United States)
Adam T. Woolley, Brigham Young Univ. (United States)

Published in SPIE Proceedings Vol. 10932:
Emerging Digital Micromirror Device Based Systems and Applications XI
Michael R. Douglass; John Ehmke; Benjamin L. Lee, Editor(s)

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