Thermal effects of carbonated hydroxyapatite modified by glycine and albumin

S A Gerk, O A Golovanova, M V Kuimova
2017 IOP Conference Series: Materials Science and Engineering  
In this work calcium phosphate powders were obtained by precipitation method from simulated solutions of synovial fluid containing glycine and albumin. X-ray diffraction and IR spectroscopy determined that all samples are single-phase and are presented by carbonate containing hydroxyapatite (CHA). The thermograms of solid phases of CHA were obtained and analyzed; five stages of transformation in the temperature range of 25-1000°C were marked. It is shown that in this temperature range
more » ... n, decarboxylation and thermal degradation of amino acid and protein connected to the surface of solid phase occur. The tendency of temperature lowering of the decomposition of powders synthesized from a medium containing organic substances was determined. Results demonstrate a direct dependence between the concentration of the amino acid in a model solution and its content in the solid phase.
doi:10.1088/1757-899x/168/1/012107 fatcat:6g4urybm6nhqdjgjn7mhlpu4fq