Related Experiment Video
Updated: Jul 21, 2026

Separation of Single-stranded DNA, Double-stranded DNA and RNA from an Environmental Viral Community Using Hydroxyapatite Chromatography
Published on: September 29, 2011
Coating of hydroxyapatite on various substrates via hydrothermal reactions of Ca(edta)2- and phosphate
Y Fujishiro1, A Sugimori, A Okuwaki
1Institute for Chemical Reaction Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577.
Abstract:
Hydroxyapatite was coated on various substrates such as 12 mol % ceria-doped tetragonal zirconia (12Ce-TZP), 3 mol % yttria-doped tetragonal zirconia (3Y-TZP), alumina, monetite coated titanium (Ti/CaHPO4) and calcium titanate coated titanium (Ti/CaTiO3) via hydrothermal reactions of Ca(edta)2- and 0.05 M NaH2PO4 at initial pH 6 and 160-200 degrees C for 0.5-6 h. Rod-like particles of hydroxyapatite precipitated to form film on the substrates above 160 degrees C. The morphology of the film changed significantly depending on the characteristics of substrate, i.e. hydroxyapatite entirely coated the surfaces of 12Ce-TZP, Ti/CaHPO4 and Ti/CaTiO3 plates, but sparsely deposited on 3Y-TZP and Al2O3 plates. Film thickness increased with time (ca. 20 and 90 microm on 12Ce-TZP plates for 0.5 and 6 h, respectively, at pH 6 and 200 degrees C). The adhesive strength of the film for the substrate was in the order, 12Ce-TZP/hydroxyapatite(28 MPa) > Ti/CaTiO3/hydroxyapatite (22 MPa) > Ti/CaHPO4/hydroxyapatite (9 MPa).
More Related Videos
09:35Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect
Published on: September 11, 2015
05:41Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications
Published on: February 23, 2017
Related Concept Videos
Factors Affecting Solubility
EDTA: Chemistry and Properties
EDTA: Auxiliary Complexing Reagents
Hydration of Cement