Porous Collagen Scaffold Reinforced with Surfaced Activated PLLA Nanoparticles

Figure 2

SEM images of porous collagen scaffolds integrated with PLLA nanoparticles. (a1), (a2), (a3): Col : NP = 6 : 0; (b1), (b2), (b3): Col : NP = 6 : 1; (c1), (c2), (c3): Col : NP = 6 : 3; (d1), (d2), (d3): Col : NP = 6 : 6 (w : w).