Fig. 6

Macroscopic and SEM images of a representative ZnO-S2-PLGA composite at the (A) top (cell contact) and (B) bottom surface. SEM images show visible bioactive glass particles dispersed in PLGA matrix. SEM scale bars represent (A) 100 μm, (B) 200 μm (300x magnification) and 50 μm (1000x magnification)