Electrospinning Preparation of Timosaponin B-II-Loaded PLLA Nanofibers and Their Antitumor Recurrence Activities In Vivo

Figure 2

SEM images and diameter distributions of the pure PLLA nanofiber (a) and TB-II-loaded PLLA nanofibers with different drug concentration: (b) 10 wt.%, (c) 12 wt.%, and (d) 15 wt.%. The scale bars are 5 μm.

(a)

(b)

(c)

(d)