Research Article

In Vitro Evaluation of Scaffolds for the Delivery of Mesenchymal Stem Cells to Wounds

Figure 2

Scaffold characterization. The thickness and general structure of the scaffolds (6 mm in diameter) were analyzed macroscopically from the side (dry, top row) and the top (wet, bottom row). The thickness of the scaffolds remains the same except for the fibrin matrix, which collapses into a mesh of fibers. Scale bars represent 1 mm (a). The pore structure and texture of the scaffolds were analyzed by SEM micrographs from the transverse sections (top row) and top view (bottom row). Note the complete absence of pores in the chitosan film in comparison to the other scaffolds. Scale bars represent 100 μm (b).