Figure 3A–F.

Video-recorded biomechanical assay (tensile strength).

Notes: (A) Simple suture tears in the line. (B) Healthy muscle broke at the edge, and the PP mesh slid on the top of the muscle. (C) Tissue treated by a PP mesh functionalized with PCL nanofibers enriched with adhered GF tore at the edge of the mesh and healthy muscle, and the slide was localized between muscle fibers. (D) In some PCL-nanofiber samples with adhered GF, the suture line tore first, but in others a tear occurred between muscle fibers or at the edge of the muscle and the mesh. (E) Healthy muscle tore at the edge, and a PP mesh functionalized with PCL nanofibers slid on top of the muscle, or the tear was localized not between the mesh and the muscle layer but in between muscle fibers. (F) In some PCL-nanofiber samples, the suture line tore first, but in others a tear occurred between muscle fibers or at the edge of the muscle and the mesh. White circles indicate areas of regenerated incision.

Abbreviations: PP, polypropylene; PCL, poly-ε-caprolactone; GF, growth factor.