23 Jul NANOSTRUCTURED HYBRID POWDERS BASED ON HYDROXYAPATITE AND MALEIC ACID DERIVATIVES FOR MEDICAL APPLICATIONS
Abstract
The invention relates to biocompatible hybrid powders based on hydroxyapatite reinforced with yttrium-doped zirconium and maleic anhydride-vinyl acetate copolymer, comprising hydroxyapatite reinforced with zirconium oxide doped with 3…4% yttrium oxide and 10…50%, as related to the hydroxyapatite amount, maleic anhydride-vinyl acetate copolymer having a molecular mass of 106000, and having a tetragonal crystalline structure, a specific surface of 156.8 m2/g and an average grain size of 14 nm. The claimed powders are meant to be employed as filling material for implants and tissue engineering.
Year: 2009
Country: RO
Doc No: 122409