Fig. 2.

SEM micrographs of HA-MC (magnification × 200, scale bar = 100 μm). Two resultant MCs of small (100–200 μm), and big (300–500 μm) size with hollow internal structure are shown. No surface morphological differences were observed between the MCs. μCT images of MCs, and the porosity calculated from μCT data analysis are also presented. SEM scanning electron microscopy, HA hydroxyapatite, MC microcarrier, μCT: micro-computed tomography