PROPERTIES OF BIOMATERIAL BASED ON POROUS SILICON NANOCOMPOSITE WITH HYDROXYAPATITE

The development of new biomaterials for medical purposes is quite a difficult task. In this work, a porous silicon nanocomposite with hydroxyapatite was obtained as a biomaterial for use in osteoplasty. The analysis of single-crystal silicon wafers with various types of surfaces as the basis for a porous silicon nanocomposite with hydroxyapatite is carried out. Porous silicon was obtained by the method of anodic electrochemical etching, its characteristics were studied and porosity was calculated by the gravimetric method. Nanocomposite powder was obtained by mechanical grinding of the porous layer and by laser ablation. Its properties as a nanocontainer for drug delivery were studied by microscopy methods. X-ray energy dispersion microscopy confirmed the presence of hydroxyapatite in silicon pores.