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. 2018 Apr 3;8:5560. doi: 10.1038/s41598-018-21755-6

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© The Author(s) 2018

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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HEK293-T cell viability on glass, SU8 films prepared according to protocols A to D in Fig. 3, Cr and Au-coated SU8 prepared according to protocol C in Fig. 3. (a) Fluorescence micrographs of HEK293-T cells plated on samples of SU8-A-D, and SU8/Au-C, indicating no significant differences in cell adhesion (squares) or cell viability count (triangles) with respect to glass. (b) Fluorescence micrographs of HEK293-T plated on chromium, showing a significant reduction in viable cell population with respect to glass.