Surface structure, hydration and cationic sites of nanohydroxyapatite (Contributo in atti di convegno)

Type
Label
  • Surface structure, hydration and cationic sites of nanohydroxyapatite (Contributo in atti di convegno) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Bertinetti L.; Tampieri A.; Landi E.; Bolis V.; Busco C.; Martra G. (2008)
    Surface structure, hydration and cationic sites of nanohydroxyapatite
    in BIOCERAMICS 20, Nantes (Francia)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bertinetti L.; Tampieri A.; Landi E.; Bolis V.; Busco C.; Martra G. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: BIOCERAMICS 20 - BIOCERAMICS 20 (Nantes (Francia), 23-26 Ottobre 2007). Proceedings, pp. 87 - 90. (Key Engineering Materials, vol. 361-363). Trans Tech Publications, 2008. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • ABSTRACT: In this work, we studied the surface/water interaction properties of a pure calcium hydroxyapatite (HA) and their modifications as a consequence of the partial Ca2+/Mg2+ (MHA) substitution by means of IR spectroscopy and microcalorimetry of adsorbed water. IR data indicated that water molecules in direct contact with the surface of HA are coordinated to surface cations and experience H-bond significantly stronger than in liquid water. The heats of adsorption associated to such interactions are very high, being twice-triple the heat of liquefaction of water. Interestingly, water experiences H-bond higher than in its bulk liquid state also in the second layer. Finally the entering in the material of Mg2+ ions was shown to significantly affect the affinity of the material toward water and the properties of its hydration layers. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Chimica IFM and NIS (Nanostructured Interfaces and Surfaces) Center of Excellence, Università di Torino, Torino, CNR-ISTEC, Faenza, NIS (Nanostructured Interfaces and Surfaces) Centre of Excellence, INSTM (Materials Science and Technology) National Consortium, UdR Piemonte Orientale, DiSCAFF Università del Piemonte Orientale \"A. Avogadro\", Novara (literal)
Titolo
  • Surface structure, hydration and cationic sites of nanohydroxyapatite (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Insieme di parole chiave di
data.CNR.it