Fig. 1: Characterization of HEP14-loaded PLGA microspheres.

A Representative SEM images of PLGA and HEP14/PLGA microspheres. B Size distribution curves for PLGA and HEP14/PLGA microspheres. C FTIR spectra of HEP14/PLGA-, PLGA microspheres and HEP14. D XRD patterns of HEP14/PLGA-, PLGA microspheres and HEP14. E Release curve of HEP14/PLGA microspheres in vitro. Scale Bar, 500 µm.