475280.fig.007a
(a)
475280.fig.007b
(b)
475280.fig.007c
(c)
Figure 7: Degradation of PLGA/chitosan and PLGA nanofibers: (a) comparing the mass loss percentage at different time points, (b) and (c) SEM image of PLGA/chitosan and PLGA nanofibers, respectively, after 14 days of incubation in PBS solution at 37°C.