Specific characteristics of wet nanocrystalline apatites. Consequences on biomaterials and bone tissue. - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Key Engineering Materials Année : 2004

Specific characteristics of wet nanocrystalline apatites. Consequences on biomaterials and bone tissue.

Résumé

The anal. of wet nanocryst. apatites by spectroscopic techniques (FTIR, solid state NMR) reveals fine, transient, structural details testifying for the existence of a structured hydrated layer on the surface of nanocrystals probably related although not identical, to the structure of octacalcium phosphate. On drying this layer loses its very fragile structure and gives a disordered assembly of ions corresponding to non-apatitic environments. The existence of a hydrated layer with mobile ionic entities due to an enhanced surface reactivity, gives nanocryst. apatites very specific and interesting properties, which are used by living organisms in mineralized tissue and which can be utilized in material science. They allow strong intercryst. interactions, specific adsorption properties and adhesion to other surfaces.

Domaines

Matériaux
Fichier non déposé

Dates et versions

hal-00162414 , version 1 (13-07-2007)

Identifiants

  • HAL Id : hal-00162414 , version 1

Citer

D. Eichert, H. Sfihi, C. Combes, C. Rey. Specific characteristics of wet nanocrystalline apatites. Consequences on biomaterials and bone tissue.. Key Engineering Materials, 2004, 254-256, pp.927-930. ⟨hal-00162414⟩
96 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More