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International Journal of Bioprinting Nanomaterial-bioinks for DLP bioprinting

Figure 7. Picrosirius red staining of GelMaBB (A–C), GelMaBB-CaP (D–F), and GelMaGO (G–I) after 7 and 14 days. Comparison between human
mesenchymal stem cell (hMSC)-free scaffolds (A, D, and G) and hMSC-containing constructs (B, C, E, F, H, and I) after 7 and 14 days. Scaffolds printed
without cells serve as controls for the staining process to determine material-based background staining. Arrows indicate collagen deposition by cells in the
bioink. Scale bars: 100 µm. Abbreviations: GelMa: Gelatin methacrylamide; BB: Brilliant Black; CaP: Calcium phosphate; GO: Graphene oxide.

Volume 10 Issue 6 (2024) 484 doi: 10.36922/ijb.4015