Figure 9
From: Collagen matrices from sponge to nano: new perspectives for tissue engineering of skeletal muscle
Phase contrast microscopy, cells indicated by arrow-heads. A: 24 hours after cell seeding most cells are already spread out, 300×. B: 7 days after cell seeding the cells grow in parallel alignment, 300×. SEMof orientated collagen-I-nanofibers after 3 days in culture. C: orientated collagen-I-nanofibers without cells, 5000×. D: parallel aligned cells on orientated nanofibers, 500×.