Fig. 2

Representative a–c SEM, d–f diameter distribution, and g–i contact angles of PCL, PCL/2% celecoxib, and PCL/6% celecoxib nano fibers. j, k FTIR (j) and XRD (k) of PCL, PCL/2% celecoxib, and PCL/6% celecoxib nano fibers. l Release percentage of PCL, PCL/2% celecoxib, and PCL/6% celecoxib nano fibers. m–o Mechanical properties of PCL, PCL/2% celecoxib, and PCL/6% celecoxib nano fibers. Values are presented as means ± SD, *P < 0.05 compared with the PCL group, ^#P < 0.05 compared with the PCL/2% celecoxib group, and ^†P < 0.05 compared with the PCL/6% celecoxib group