Fig. 2.

Attachment and proliferation of hPDLSCs on MEW PCL scaffolds with aligned and randomly oriented fiber configurations, and 250 μm and 500 μm strand spacings. (A) Cell viability of hPDLSCs seeded on the scaffolds using AlamarBlue assay over 7 days. (B) Representative SEM images of hPDLSCs proliferation on the scaffolds after 3 and 7 days. Note the characteristic cell stretch along the fibrous walls (All SEM images have the same scale bar). A more pronounced spreading was detected along the scaffolds with randomly oriented fibers (white arrows indicate the direction of filopodia protrusion). (Mean ± SD, n = 3). *p < 0.05, **p < 0.01, ***p < 0.001.