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. 2018 Nov 27;8:17409. doi: 10.1038/s41598-018-35663-2

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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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Tensile properties of non-functionalized BaSO₄ and SA-BaSO₄ filled PLLA. (a) Stress-strain curves of the pure PLLA and nanocomposite fibers. (b–d) Mean tensile modulus, strength and elongation at break of the nanocomposites. (n = 10) * indicates a statistically different value of the SA-BaSO₄/PLLA compared to the BaSO₄/PLLA at the same filler loading, based on one-way ANOVA (p < 0.05). Error bar presents standard deviation.