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. Author manuscript; available in PMC: 2024 Jan 5.
Published in final edited form as: Biomaterials. 2022 May 2;286:121548. doi: 10.1016/j.biomaterials.2022.121548

Fig. 1. Scanning electron micrographs of a zonal microstructured scaffold.

Fig. 1

(A) Cross-section of the complete scaffold showing each unique zone. (B) Partially fused PCL fibers used to adhere the electrospun mat to the underlying foam using residual solvent (top-down image). (C) A cross-sectional view of the porogen-electrospun interface. (D) Vertical channels through the directionally frozen foam (top-down image). (E) A cross-sectional view of the directionally frozen-electrospun interface. (F) Melt-electrowritten osteo component (top-down image). The osteo component consisted of 20 μm diameter fibers stacked at 200 μm intervals in a 90-degree laydown pattern. Figure at right is a conceptual schematic of the zonal microstructured osteochondral scaffold, features are not proportionally represented. Scale bars for images A, B, C, D, E, and F are 250, 10, 50, 100, 25, and 100 μm, respectively.