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. 2020 Oct 5;6:100. doi: 10.1038/s41378-020-00208-z

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — A side-by-side comparison of our sensor-integrated 3D-printed transwell (left) and a commercial transwell (right). (Left) Illustration showing the exploded view of the 3D-printed sensor-integrated cell culture platform, with labeled components: a 3D-printed bottom chamber filled with cell media (red) and in situ PDMS gaskets for membrane attachment, b electrode-integrated PETE membrane with contact pads, c access port to provide fluid to the bottom chamber and serving as an accessibility point for TEER electrodes, (see also Supplementary Fig. S1), d top chamber, and e electrodes to connect to the sensor contact pads. Analogous parts are labeled in the transwell on the right