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. 2020 Jul 16;11:289. doi: 10.1186/s13287-020-01797-2

Fig. 1.

Fig. 1

Microparticle (MP) characterization. a Scanning electron microscopy (SEM) images of MPs show their smooth surface morphologies. The mean diameter of the particles was 11 ± 5.5 μm. b Kartogenin (KGN) release profile from MPs for 32 days. Data are expressed as mean ± standard deviation (n = 3)