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After 105 days of culturing PCASMCs on the P(LLA-CL) NFS, the cell–scaffold construct was collected and subjected to (a) SEM and (b) histological staining. The solid two-way arrow indicates the cell layers and the broken arrow indicates the NFS. The SEM micrograph shows that the multiple cell layer that was approximately 10 μm in thickness formed an integral part of the scaffold.
