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. 2021 Oct 18;49(12):3621–3635. doi: 10.1007/s10439-021-02872-2

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© The Author(s) 2021

Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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The effects of PCL scaffold surface modifications on collagen extracellular matrix deposition. (a) Picosirius red staining of PCL, PCL + Collagen, and PCL + Collagen + EV scaffolds after 14- and 21 days culture. (b) Quantification of collagen matrix after 14 and 21 days. (c) Quantification of collagen synthesis normalised to DNA content after 14 and 21 days. All data n = 6. Statistical analysis using two-way analysis of variance (ANOVA) and Tukey's multiple comparison post‐test (*p < 0.05, ***p < 0.001). EVs extracellular vesicles.