Fig. 4.
SEM image of murine osteoblasts attached and proliferating on BMP-7 encapsulated chitosan microparticle as observed on day 5 – a, b) lower and higher magnification at a scale of 200 μm and 20 μm, respectively, and on day 10 c, d) lower and higher magnification at a scale of 200 μm and 100 μm, respectively.