789289.fig.007a
(a)
789289.fig.007b
(b)
789289.fig.007c
(c)
Figure 7: TEM images of the shell-core PLLA nanofibers with the 5 wt% TCH (containing 1 wt% PLLA) in the core and (a) 5 wt%, (b) 8 wt%, and (c) 10 wt% PLLA in the shell. Adapted from He et al. [100].