Filling of polymer hydrogels by nanoparticles of the hydroxyapatite

In this work was development of new methods of synthese the hydrogel composites with nanoparticles of hydroxyapatite using sol-gel synthesis. At first the nanoparticles were synthesized in the presence of the peroxide oligomers which at the next stage provided polyacrylamide grafting on to the surface nanoparticles; that resulted in formation of the powder-xerogels capable to turn in to hydrogels. In accordance with other approach, the hydrogels filled were formed via in situ synthesis of the hydroxyapatite nanoparticles directly inside of the crosslinked polyacrylamide gels.