Porous Collagen Scaffold Reinforced with Surfaced Activated PLLA Nanoparticles

Figure 5

Cross-sectional SEM images of L929 fibroblast cells cultured in the scaffolds. (a) Col : NP = 6 : 0; (b) Col : NP = 6 : 1; (c) Col : NP = 6 : 3; (d) Col : NP = 6 : 6 (w : w).

(a)

(b)

(c)

(d)