ORGANIC-INORGANIC NANOCOMPOSITE COATINGS FOR IMPLANT MATERIALS AND METHODS OF PREPARATION THEREOF

摘要

The present inventions provides for a novel organic-inorganic composition, comprising a plurality of organic polyelectrolytes films (SAPF), interspaced with a plurality of films of nanometer to micron-sized inorganic amorphous or crystalline bioactive particles. This sequentially adsorbed nanocomposite film is especially useful for coating implants. The present invention also provides a cost effective and efficient method of preparing calcium phosphate embedded organic polyelectrolytes compositions. The method comprising inter alia the steps of adsorbing polyelectrolytes on top of a surface so that at least one electrolyte film is obtained; and depositing calcium-containing compositions on top of said polyelectrolyte multilayer film, so that at least one nanometer to micron-sized layer comprising calcium phosphate is formed; so a calcified SAPF is obtained.