抄録
Study was made to investigate stability of amorphous calcium phosphate (ACP) adsorbed glycine in ringer solution having a composition similar to the body fluid in vivo and in ringer solution including glycine. Characterization of the products was determined by means of X-ray diffraction, thermal analysis (TG-DTA) and ion chromatography. pH in suspension which was dipped ACP adsorbed glycine in ringer solution of initial pH of 7.3 at 35°C was reached to 7.2 for 12 hours. Then stability of ACP adsorbed glycine was decreased as a result of deadsorption of glycine adsorbent and crystallization of ACP to hydroxyapatite (HAp). The glycine adsorbent of 1.4wt% was adsorbed about 7.3wt% on HAp crystallized in ringer solution including glycine. The largest quantity of glycine on ACP was increased to 13.3wt% in ringer solution including glycine. HAp formed from ACP adsorbed glycine as starting sample was able to control thickness of capsulation film by adhesion of cell in vivo.
