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Merck

702153

Hydroxyapatite

nanoparticles, dispersion, 10 wt. % in H2O, <200 nm particle size (BET)

Synonyme(s) :

Calcium hydroxide phosphate, Calcium hydroxylapatite, Calcium hydroxyphosphate, Nano hydroxyapatatite, Pentacalcium hydroxide triphosphate

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A propos de cet article

Formule linéaire :
[Ca5(OH)(PO4)3]x
Numéro CAS:
Poids moléculaire :
502.31
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
MDL number:
Form:
dispersion, nanoparticles
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InChI

1S/5Ca.3H3O4P.H2O/c;;;;;3*1-5(2,3)4;/h;;;;;3*(H3,1,2,3,4);1H2/q5*+2;;;;/p-10

SMILES string

[Ca++].[Ca++].[Ca++].[Ca++].O[Ca+].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O

InChI key

XYJRXVWERLGGKC-UHFFFAOYSA-D

form

dispersion, nanoparticles

contains

≤0.025 wt. % dispersant (non-metal based)

concentration

10 wt. % in H2O

surface area

14.3 m2/g , typical

particle size

<200 nm (BET)

pH

4-6

density

1.038 g/mL at 25 °C

Quality Level

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General description

Hydroxyapatite(HAP) is an osteoconductive bioceramic material which has uniqueability to form direct bonds with living tissues. It can be easily prepared byvarious techniques such as sol-gel, hydrothermal, multiple emulsion, biomimeticdeposition, and electrodeposition.

Application

Hydroxyapatite can be used as:
  • An implant material for bone substitute due to its chemical similarity to the inorganic component of bone and osteo inductive properties.
  • A vehicle for gene and drug delivery because of its encapsulation capacity and affinity to several drugs and proteins.
  • A pH responsive particulate emulsifier.

Features and Benefits

  • Biocompatible
  • Osteoconductive
  • Stable under physiological conditions
  • High mechanical strength

Legal Information

Product of Engi-Mat Co.

Classe de stockage

12 - Non Combustible Liquids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Martin P Reichhardt et al.
Life science alliance, 3(4) (2020-02-27)
The scavenger receptor cysteine-rich (SRCR) family of proteins comprises more than 20 membrane-associated and secreted molecules. Characterised by the presence of one or more copies of the ∼110 amino-acid SRCR domain, this class of proteins have widespread functions as antimicrobial
Xi Chen et al.
The Journal of biological chemistry, 289(16), 11162-11174 (2014-03-13)
Calcium phosphate precipitates (CPPs) form complexes with DNA, which enter cells via endocytosis. Under this condition CPPs induce autophagy via the canonic autophagy machinery. Here we showed that CPP-induced autophagy was also dependent on endocytosis as the process was significantly
Liam M Grover et al.
Biomaterials, 34(28), 6631-6637 (2013-06-12)
Pyrophosphate ions are both inhibitors of HA formation and substrates for phosphatase enzymes. Unlike polyphosphates their hydrolysis results simultaneously in the complete loss of mineral formation inhibition and a localised elevation in orthophosphate ion concentration. Despite recent advances in our
Thomas Lyon et al.
The Journal of bone and joint surgery. American volume, 95(23), 2088-2096 (2013-12-07)
Recombinant human bone morphogenetic protein-2 (rhBMP-2) applied on an absorbable collagen sponge improves open tibial fracture-healing as an adjunct to unreamed intramedullary nail fixation. We evaluated rhBMP-2 and a new, injectable calcium phosphate matrix (CPM) formulation in acute closed tibial
Tie Liu et al.
Bone, 56(1), 110-118 (2013-06-05)
As an alternative to an autologous bone graft, deproteinized bovine bone (DBB) is widely used in the clinical dentistry. Although DBB provides an osteoconductive scaffold, it is not capable of enhancing bone regeneration because it is not osteoinductive. In order

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