Hydroxyapatite is an inorganic component of the bone tissue and is often used as reinforcement of nanocomposite hydrogel scaffolds designed for bone tissue engineering.

Which tissue contains hydroxyapatite?

Bone is a composite tissue consisting of mineral, matrix (collagen and non-collagenous proteins), cells, and water. The mineral is hydroxyapatite, which is an analog of the naturally occurring crystalline calcium phosphate.

Where is hydroxyapatite found?

Hydroxyapatite is present in bone 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.