Siberian Federal University

The effects of high- molecular hyaluronic acid on the phase composition, crystal lattice parameters, and the sizes of the regions of coherent dispersion, depending on its content in the synthesis solution, have been studied. All composites are represented by poorly crystallized carbonate hydroxyapatite. With an increase in the viscosity of the medium, the broadening of the parameter a of the hydroxyapatite crystal lattice decreases and the most crystallized precipitates are formed, the average size of the crystallites is ~ 15 nm, the specific surface area of the samples does not change (105–130 m2/g)