Hydroxyapatite - Wikipedia
Hydroxyapatite is present in bones and teeth; bone is made primarily of HA crystals interspersed in a collagen matrix—65 to 70% of the mass of bone is HA. Similarly HA is 70 to 80% of the mass of dentin and enamel in teeth. In enamel, the matrix for HA is formed by amelogenins and enamelins instead of collagen. [17] .
The impact of hydroxyapatite crystal structures and protein ...
2024年4月29日 · Hydroxyapatite (HAP) constitutes the primary mineral component of bones, and its crystal structure, along with the surface interaction with proteins, significantly influences the outstanding...
The structure of hydroxyapatite crystals. - ResearchGate
The hydroxyapatite (HAp; Ca 10 (PO 4 ) 6 (OH) 2 )) has good biocompatibility, bioactivity, and osteoconductivity as a bone implant because the main inorganic mineral of human bone is HAp.
4 - Basics of hydroxyapatite—structure, synthesis, properties, …
2020年1月1日 · Electrophoretic deposition, physical vapor deposition, sputtering, and precipitation are some of the methods used for developing HA coatings. Furthermore, this chapter also highlights the crystal structure of HA and its key physical, thermal, and mechanical properties.
The impact of hydroxyapatite crystal structures and protein ...
Hydroxyapatite (HAP) constitutes the primary mineral component of bones, and its crystal structure, along with the surface interaction with proteins, significantly influences the outstanding mechanical properties of bone. This study focuses on natural hydroxyapatite, constructing a surface model with calcium vacancy defects.
Structure and properties of hydroxyapatite for ... - ScienceDirect
2015年1月1日 · In this chapter, the key properties of HAp will be briefly discussed, including the chemical composition, crystal structure and ion substitution, crystal growth kinetics and preferred orientation, charge distribution of the crystal faces, general aggregates of the crystals in the synthesis process, and relationship between the structures and ...
(PDF) Overview of hydroxyapatite; composition, structure, …
2020年6月5日 · Hydroxyapatite (HAP) belongs to the family of Ca apatite. Its natural composition and structure are similar to the inorganic phase of natural bone and teeth and has a wide range of applications...
Simulation and Computer Study of Structures and Physical …
2.2. Main Details of HAP Crystal Structure. Hydroxyapatite (HAP) have the general chemical formula Ca 5 (PO 4) 3 OH . HAP solidifies in the form of an ionic molecular crystal, either with hexagonal (P6 3 /m) or monoclinic (P2 1 /b) symmetry, depending on conditions, and has unit cells enclosing two or four formula units, respectively [10,11,12,13].
Crystalline structure of hydroxyapatite. | Download Scientific …
HA has a hexagonal crystal structure and it is primarily made up of calcium (Ca 2+ ) and phosphate (PO4 3− ) with a Ca:P ratio of 1.67 [51]. The HA crystals are highly adaptable with cations...
4 - Basics of hydroxyapatite—structure, synthesis, properties, …
2020年1月1日 · The surface morphology structure and crystallinity of HAp NPs affect drug loading and release but strongly depend on the number of active ions present at the surface. This review describes various synthesis methods of HAp NPs and the bonding or interaction between the active ions of HAp NPs and the atoms of the drug, the effect of surface ...