Dissolution behavior of hydroxyapatite coating by hydrothermal method: an in vitro study.
Hydroxyapatite (HA) coated CaO-SiO2-B2O3-Na2O glass composites prepared by a hydrothermal coating method were soaked in four kinds of solutions to evaluate the dissolution behavior and the chemical stability. 0.5 mol/l HCl and 0.5 mol/l HNO3 were used as acidic solution, and 5% physiological saline and sodium lactate compound solution as the neutral physiological solution. It was found that HA coated glass composites had the better chemical stability and the corroding-resistance ability. The dissolution behavior of the HA coating was mainly correlated with the phase composition of the as-received HA coating and its microstructure as well as the pH value of the solution.
Zhang
H
H
Biomaterials and Engineering Center Wuhan University of Technology, PR China. zhhquan@yahoo.com
Li
S
S
Yan
Y
Y
Wang
Y
Y
D002118:Calcium / Q000032:analysis; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D019544:Equipment Failure Analysis; D006863:Hydrogen-Ion Concentration; D008422:Materials Testing; D010710:Phosphates / Q000032:analysis; D012995:Solubility; D013499:Surface Properties
D020099:Coated Materials, Biocompatible; D010710:Phosphates; D017886:Durapatite; D002118:Calcium