Hydroxyapatite, Ceramic

Hydroxyapatite

Hydroxyapatite (HAp) is a naturally occurring mineral of biological and agricultural importance. It is a member of calcium phosphate, and it has a Ca/P ratio of 1.67 which is identical to bone apatite. The common mineral apatite has formula Ca5(PO4)3X, where X is F, Cl, OH, or a mixture; it is hydroxyapatite if the extra ion is mainly hydroxide. Up to 50% by volume and 70% by weigh of human bone is a modified form of HAp, known as bone mineral. The main substance of our teeth is HAp (97 % of enamel and 70 % of dentin). Due to its similarity in size, crystallography and chemical composition with human hard tissue, HAp is one of the most widely studied materials for orthopedic and dental implants. HAp could be prepared from natural or synthesized sources via several processes, and can be made as a powder.

Applications

• In oral applications such as toothpaste: Nano-hydroxyapatite (nano-HAp) can effectively remineralize and repair tooth surface, also improves the antimicrobial properties and tooth sensitivity.
• It is attracting interest in prosthetic applications. For example, HAp coating has been used in uncemented knee prostheses.
• In bone-healing applications such as bone fillers: Restoration of periodontal bone defects and edentulous ridge augmentation.
• It is a valuable resource that serves as an important agrochemical fertilizer.
• It is used in the chromatographic separation of biomolecules, such as protein and peptide separations.
• Porous HAp can be used as drug and gene delivery systems due to their biocompatibility, bioactivity and osteoconductivity.

Matexcel provides HAp in different dimensions, from nano to micro sizes, as well as different grades such as research, medical and food grades.

CAT.NO.	Product Name	Particle Size	Inquiry
CER-0001	Hydroxyapatite (HAp) (acicular) Powder	60 nm	Inquiry
CER-0002	Hydroxyapatite (HAp) (acicular) Powder	40 nm	Inquiry
CER-0003	Hydroxyapatite (HAp) (acicular) Powder	20 nm	Inquiry
CER-0004	Hydroxyapatite (HAp) (acicular) Powder	20nm wide and 150nm long	Inquiry
CER-0005	Hydroxyapatite (HAp) (Short bar) Powder	30nm wide and 100nm long	Inquiry
CER-0006	Hydroxyapatite (HAp) (Fibrous) Powder	10nm wide and 500nm long	Inquiry
CER-0007	Hydroxyapatite (HAp) (Spherical) Powder	12-100μm	Inquiry
CER-0008	HAP (Spherical) Powder	12-100μm	Inquiry
CER-0009	Hydroxyapatite (HAp) Microspheres	10μm; 20μm; 40μm; 80μm	Inquiry
CER-0010	beta-Tricalcium phosphate (TCP) Powder	0.5μm; 3μm; 600-900 mesh; 325 mesh	Inquiry