Figure 2
Characterization of PCL fibrous membranes. (A–D) XPS spectra (a,e,i,m), SEM (b,c,f,g,j,k,n,o) and AFM images (d,h,l,p). A, PCL fibrous membrane with 2 μm in diameter (2 P). B, pNE coated PCL fibrous membrane with 2 μm in diameter (2 PP). C, PCL fibrous membrane with 10 μm in diameter (10 P). D, pNE coated PCL fibrous membrane with 10 μm in diameter (10 PP). (E-H) The mechanical property, wettability and degradation in vitro of PCL fibrous membranes. E, The stress-strain curves of PCL fibrous membranes. F, Images and quantitative statistics of contact angle. G, Mass loss of PCL fibrous membranes after cultured in PBS at 37 °C for 11, 33, 66 and 99 days, respectively. H, SEM images of PCL fibrous membranes after cultured in PBS at 37 °C for 11, 33, 66 and 99 days.
