Figure 2. Scanning electron micrographs (SEM) of electrospun (ES) PLA scaffolds and cellular response.
(A) SEM of random and (B) aligned ES PLA fibers (Mag. 1250×). (C) SEM of avascular human meniscus cells cultivated on random and (D) vascular human meniscus cells seeded on aligned ES PLA fibers (Mag. 1250×), scale bar: 20 μm in SEM images. (E) Confocal microscopy of vascular human meniscus cells cultured on random scaffolds and (F) avascular human meniscus cells cultivated on aligned scaffolds demonstrating viability (live/dead) and alignment cells cultivated on PLA scaffolds (Mag. 10×; scale bar: 200 μm in confocal images).