Abstract:
Among the various materials for orthopedic use, hydroxyapatite (HA) is the most common material, due to its
chemical similarity to bone. However, the application is limited because of low mechanical properties (especially
high brittleness), low water solubility, low antimicrobial activity. The introduction of trace metal ions,
as well as biopolymers, can improve its properties. The present work is devoted to the synthesis and complex
study of bioactive material based on nanostructured hydroxyapatite with the addition of sodium alginate and
ZnO, which has properties close to bone tissue. The article presents information on the method of preparation
and the results of the investigation of a new composite material based on HA and sodium alginate with the
addition of ZnO microcrystals. In the research work next methods were used: scanning electron microscopy
with the possibility of energy-dispersion analysis, transmission electron microscopy and IR spectroscopy. The
morphology, the particles phase statesare described, the regularities of the structural features of the new material
are revealed. The main characteristics like, the ratio of Ca/P and functional groups correspond to the generally
accepted parameters. An explanation of the grouping of ZnO microcrystals in the pores of the structure
of a synthesized composite material is proposed.
