Abstract
The composition of a multilayer coating on the basis of Mg + Ca + P2O5, applied to the surface of an intramedullary implant to initiate the growth of bone tissue, has been proposed and justified. The possibility of etidronate and polymethylsilsesquioxane deposition (PMSQ) by an electron beam is first established during the research process. The efficiency of using the PMSQ coating system as a separate layer has been evaluated. It is shown that the exchange processes between the multilayer system and the buffer solution are responsible for the destruction of the cross-linked organosilicone layer. For this reason, using PMSQ as a layer, which initiates HA nucleation, is ineffective. The formation of calcium and zinc phosphates has been established in etidronate and phosphorus (V) oxide interaction with the corresponding metals. The multilayer system Mg + Ca + etidronate + P2O5 + Zn + P2O5, heat-treated at 200°С, is shown to be highly resistant to abrasion. The layer system transforms into HA in the SBF buffer solution. The effect of heat treatment is manifested in an increase in the structural ordering of individual layers.
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