The high-velocity suspension flame spraying technique (HVSFS) was employed in order to deposit 45S5 bioactive glass coatings onto titanium substrates, using a suspension of micron-sized glass powders dispersed in a water ? isopropanol mixture as feedstock. By modifying the process parameters, five coatings with different thick- ness and porosity were obtained. The coatings were entirely glassy but exhibited a through-thickness micro- structural gradient, as the deposition mechanisms of the glass droplets changed at every torch cycle because of the increase in the system temperature during spraying. After soaking in simulated body fluid, all of the coatings were soon covered by a layer of hydroxyapatite; furthermore, the coatings exhibited no cytotoxicity and human osteosar- coma cells could adhere and proliferate well onto their surfaces. HVSFS-deposited 45S5 bioglass coatings are therefore highly bioactive and have potentials as replace- ment of conventional hydroxyapatite in order to favour osseointegration of dental and prosthetic implants.

Microstructure and in vitro behaviour of 45S5 bioglass coatings deposited by high velocity suspension flame spraying (HVSFS) / L., Altomare; Bellucci, Devis; Bolelli, Giovanni; Bonferroni, Benedetta; Cannillo, Valeria; L., De Nardo; R., Gadow; A., Killinger; Lusvarghi, Luca; Sola, Antonella; N., Stiegler. - In: JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE. - ISSN 0957-4530. - STAMPA. - 22:(2011), pp. 1303-1319. [10.1007/s10856-011-4307-6]

Microstructure and in vitro behaviour of 45S5 bioglass coatings deposited by high velocity suspension flame spraying (HVSFS)

BELLUCCI, Devis;BOLELLI, Giovanni;BONFERRONI, Benedetta;CANNILLO, Valeria;LUSVARGHI, Luca;SOLA, Antonella;
2011-01-01

Abstract

The high-velocity suspension flame spraying technique (HVSFS) was employed in order to deposit 45S5 bioactive glass coatings onto titanium substrates, using a suspension of micron-sized glass powders dispersed in a water ? isopropanol mixture as feedstock. By modifying the process parameters, five coatings with different thick- ness and porosity were obtained. The coatings were entirely glassy but exhibited a through-thickness micro- structural gradient, as the deposition mechanisms of the glass droplets changed at every torch cycle because of the increase in the system temperature during spraying. After soaking in simulated body fluid, all of the coatings were soon covered by a layer of hydroxyapatite; furthermore, the coatings exhibited no cytotoxicity and human osteosar- coma cells could adhere and proliferate well onto their surfaces. HVSFS-deposited 45S5 bioglass coatings are therefore highly bioactive and have potentials as replace- ment of conventional hydroxyapatite in order to favour osseointegration of dental and prosthetic implants.
22
1303
1319
Microstructure and in vitro behaviour of 45S5 bioglass coatings deposited by high velocity suspension flame spraying (HVSFS) / L., Altomare; Bellucci, Devis; Bolelli, Giovanni; Bonferroni, Benedetta; Cannillo, Valeria; L., De Nardo; R., Gadow; A., Killinger; Lusvarghi, Luca; Sola, Antonella; N., Stiegler. - In: JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE. - ISSN 0957-4530. - STAMPA. - 22:(2011), pp. 1303-1319. [10.1007/s10856-011-4307-6]
L., Altomare; Bellucci, Devis; Bolelli, Giovanni; Bonferroni, Benedetta; Cannillo, Valeria; L., De Nardo; R., Gadow; A., Killinger; Lusvarghi, Luca; Sola, Antonella; N., Stiegler
File in questo prodotto:
File Dimensione Formato  
Microstructure and in vitro behaviour of 45S5 bioglass coatings deposited by high velocity suspension flame spraying (HVSFS).pdf

Accesso riservato

Tipologia: Versione pubblicata dall'editore
Dimensione 1.38 MB
Formato Adobe PDF
1.38 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/658446
Citazioni
  • ???jsp.display-item.citation.pmc??? 4
  • Scopus 50
  • ???jsp.display-item.citation.isi??? 42
social impact