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Fig. 3 | Stem Cell Research & Therapy

Fig. 3

From: Three-dimensional printed PLA scaffold and human gingival stem cell-derived extracellular vesicles: a new tool for bone defect repair

Fig. 3

a Graph showing pH decrease during 3D-PLA degradation at different time points. b Graph showing weight loss during 3D PLA degradation at different time points. c Yield strength with significantly higher values for designs D over B, C, and E at day 0 and after 112 days. Design B showed a significant decrease over time. d Mean strength at 15% strain (±SD) for the tested groups for each time point. 3D PLA design D values were statistically higher than B, C, and E; differences between groups were confirmed after degradation except for design A which showed higher stability over time. e Compressive modulus with significantly higher values for design D over designs C and E at day 0 and after 112 days. Design B showed a significant decrease over time

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Stem Cell Research & Therapy

ISSN: 1757-6512