Lesions involving the osteochondral unit are difficult to treat. Biomimetic scaffolds previously shown as promising alternative. Such devices often lack multiple functional layers that mimic bone, cartilage, and interface. In this study, multilayered developed based on use of natural extracellular matrix (ECM)-like biopolymers. Particular attention is paid obtain a complex mimics native transit...

Reproducible time-of-flight cluster static secondary ion mass spectra (ToF-SSIMS) were obtained for various standard calcium phosphate (CP) powders, which allowed for phase identification. X-ray diffraction was not able to detect signals from microscopic amounts of CP (∼15 mmol m(-)(2)). The phases studied were α-tricalcium phosphate [α-Ca(3)(PO(4))(2)], β-tricalcium phosphate [β-Ca(3)(PO(4))(2...

Octacalcium phosphate (OCP) coating was formed on the surface of Mg–Al–Zn–Ca alloy (AZX612) by anodically oxidized and subsequently immersed in a supersaturated aqueous solution containing calcium ion under ordinary temperature pressure. The OCP layer consisted both inner fine crystallites outer large crystallites, remained even after ultrasonication process. In simulated body fluid, AZX612 tre...

A survey of the interactions between phosphorus (P) species and the components of calcareous soils shows that both surface reactions and precipitation take place, especially in the presence of calcite and limestone. The principal products of these reactions are dicalcium phosphate and octacalcium phosphate, which may interconvert after formation. The role of calcium carbonate in P retention by ...

The aim of this study was to examine the effect of fluoride ion concentration on the morphology of calcium phosphate crystals grown on acid-etched enamel as a model for tooth enamel erosion. Samples were immersed in calcification solution for 16 h and changes in crystal morphology were monitored by field emission scanning electron microscopy. Without fluoride, plate-like octacalcium phosphate c...

The spherical porous granules of octacalcium phosphate (OCP) and hydroxyapatite (HA) have the potential for applications in scaffolds bone regeneration. alpha-tricalcium were immersed a pH 5.0 buffer solution that contained 0.1 mM ascorbic acid (AscP), an osteogenesis-promoting drug, at 60 °C. This resulted fabrication AscP-loaded HA/OCP granules. OCP HA phases concentrated surface interior gra...