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. 2020 Dec 16;8:604123. doi: 10.3389/fbioe.2020.604123

Figure 1.

Figure 1

Evaluation of wall structure and wettability of PCL/PLA and Matriderm scaffolds. (A) Scanning electron microscope image of a cross-section of the two-layered PCL/PLA scaffold. Dotted line marks the border between the two layers. Scale bar = 20 μm. (B) High-magnification image of the region shown in A (scale bar = 10 μm). (C) Scanning electron microscope image of a cross-section of Matriderm. Scale bar = 100 μm. (D) Contact angles of different scaffold materials to cell culture medium (n = 10–12).