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(a) Antibacterial activity of the scaffolds against S. aureus presented by zone of inhibition. (b) Cell viability results for the scaffold-free 3D-printed ring (control), presented by the optical density (OD) value for the MTT assays. (c) Cell metabolic activity of BM-MSCs in the scaffold. The data were normalized according to Equation (4) and represented as mean ± SD (n = 3).
