title: Development of biomimetic nano-hydroxyapatite/poly(hexamethylene adipamide) composites.
abstract: In this study, acicular nano-hydroxyapatite (n-HA) was used to make a new biomimetic composite with polyamide (poly hexamethylene adipamide) by a unique technique. The physical and chemical characteristics of the composites were tested. It was found that these synthesized n-HA crystals were similar to bone apatite in size, phase composition and crystal structure. The biomimetic n-HA crystals were uniformly distributed in the polymer matrix and its content can reach 65%, close to that in natural bone. Chemical binding between inorganic n-HA and polyamide was investigated and discussed. The mechanical properties of the composites were found to match well with those of natural bone.
mesh_terms: D000577:Amides / Q000737:chemistry*; D001672:Biocompatible Materials / Q000737:chemistry*; D018786:Bone Substitutes / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D008854:Microscopy, Electron; D008956:Models, Chemical; D009757:Nylons / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013718:Tensile Strength; D014961:X-Ray Diffraction
chemical_list: D000577:Amides; D001672:Biocompatible Materials; D018786:Bone Substitutes; D009757:Nylons; C027486:adipamide; D017886:Durapatite