Figure 2

SEM photomicrographs of PCL NPs: (A) F3, HSA (scale bar = 10 μm, ×5000); (B) F8, HSA (scale bar = 10 μm, ×5000); (C) F9, HSA (scale bar = 10 μm, ×5000); and (D) rhMBP (scale bar = 20 μm, ×2000).

SEM photomicrographs of PCL NPs: (A) F3, HSA (scale bar = 10 μm, ×5000); (B) F8, HSA (scale bar = 10 μm, ×5000); (C) F9, HSA (scale bar = 10 μm, ×5000); and (D) rhMBP (scale bar = 20 μm, ×2000).