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. 2020 Apr 28;10:7120. doi: 10.1038/s41598-020-63785-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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Tailoring mechanical properties of gelatin methacryloyl (GelMA) hydrogels to match soft tissues. (A) Young’s modulus for the hydrogels prepared from 5.0 (black) and 7.5% GelMA (grey). Error bars are based on the standard deviation of 5 replicates. *Indicates significant difference (P < 0.05). (B) Comparison of Young’s modulus developed in this work (dashed box) with the soft biological tissues (grey bars). Dashed box represents the region for 5.0-7.5% GelMA. The Young’s modulus values obtained for the GelMA hydrogels were compared with the values reported within the literature for 7 soft biological tissues^34,35.