Formation of uniform hydroxyapatite nanocoating triggered by nucleation at carboxylic groups embedded in ethylene/acrylic acid copolymer microspheres

摘要: Abstract A uniform thin layer of hydroxyapatite (HAp) was formed by promoting its nucleation at carboxylic groups on the surface substrate. In present work, we chose ethylene (82 wt%)/acrylic acid (18 wt%) copolymer microsphere as The HAp moiety directly derived from calcium hydrogenphosphate with excess ion in an aqueous phase a basic condition adjusted ammonia solution (pH ∼ 11). TEM observation revealed that dense coating thickness below 100 nm microsphere. rod-like nanoparticles, which were densely stacked each other. copolymerised acrylic promoted and formation primary precursory