(a)
(b)

Figure 6: High magnification images of Al2O3 particles. Scale bar: 10 μm. Note the cracked morphology of the particle on the surface of BL Roxolid® SLActive® implant in (a) and a particle protruding out from the surface of BLX Roxolid® SLActive® implant (b). Scale bars: 10 μm.