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

Figure 4

FT-IR spectra of TB-II (a), pure PLLA nanofiber (b), and TB-II-loaded nanofibers with different drug concentration: (c) 10 wt.%, (d) 12 wt.%, and (e) 15 wt.%.