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Strontium doped calcium phosphate coatings on poly(etheretherketone) (PEEK) by pulsed electron deposition
Strontium doped calcium phosphate coatings on poly(etheretherketone) (PEEK) by pulsed electron deposition
- Source :
- Surface & Coatings Technology, 319, 191-199, Surface & coatings technology 319 (2017): 191–199. doi:10.1016/j.surfcoat.2017.04.012, info:cnr-pdr/source/autori:Bianchi, Michele; Degli Esposti, Lorenzo; Ballardini, Alberto; Liscio, Fabiola; Berni, Matteo; Gambardella, Alessandro; Leeuwenburgh, Sander C. G.; Sprio, Simone; Tampieri, Anna; Iafisco, Michele/titolo:Strontium doped calcium phosphate coatings on poly(etheretherketone) (PEEK) by pulsed electron deposition/doi:10.1016%2Fj.surfcoat.2017.04.012/rivista:Surface & coatings technology/anno:2017/pagina_da:191/pagina_a:199/intervallo_pagine:191–199/volume:319, Surface & Coatings Technology, 319, pp. 191-199
- Publication Year :
- 2017
-
Abstract
- Herein the preparation of Sr2+-doped calcium phosphate (CaP) coatings on poly(etheretherketone) (PEEK) substrates by pulsed electron deposition (PED) was investigated. Hydroxyapatites (HA) substituted with tailored amounts of Sr2+ up to 9 wt% were synthesized to generate the deposition targets. Dense and uniform amorphous CaP films having Sr/Ca molar ratios close to that of targets were achieved. The roughness and the wettability of the bare PEEK were significantly enhanced after coating deposition. The presence of Sr2+ led to a slight increase of the particles size while it did not mainly affect the RMS of the coatings that consisted of nanostructured aggregates of globular shape. After a mild annealing treatment at 130 degrees C for 6 h, the amorphous coatings transformed into nanocrystalline HA films incorporating sr(2+) having Sr/Ca molar ratios close to those of the as-deposited films. The annealing did not affect the topography and the roughness of the coatings, while improved the hardness of the films un-doped and doped at low-extent. This study shows that PED is feasible technique to coat PEEK implants with CaP films with control over the Sr/Ca ratio, which could improve bone fixation and in vivo stability especially under osteoporotic conditions thanks to the anabolic effect of Sr2+. (C) 2017 Elsevier B.V. All rights reserved.
- Subjects :
- inorganic chemicals
Materials science
Annealing (metallurgy)
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
01 natural sciences
Poly(etheretherketone)
Hydroxyapatite
Pulsed electron deposition
All institutes and research themes of the Radboud University Medical Center
Poly(etheretherlcetone)
Materials Chemistry
Peek
Calcium phosphate
Osteoporosis
Strontium
Hydroxyapatites
Composite material
Doping
Surfaces and Interfaces
General Chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Nanocrystalline material
0104 chemical sciences
Surfaces, Coatings and Films
Amorphous solid
Reconstructive and regenerative medicine Radboud Institute for Molecular Life Sciences [Radboudumc 10]
Chemical engineering
chemistry
Wetting
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 02578972
- Database :
- OpenAIRE
- Journal :
- Surface & Coatings Technology, 319, 191-199, Surface & coatings technology 319 (2017): 191–199. doi:10.1016/j.surfcoat.2017.04.012, info:cnr-pdr/source/autori:Bianchi, Michele; Degli Esposti, Lorenzo; Ballardini, Alberto; Liscio, Fabiola; Berni, Matteo; Gambardella, Alessandro; Leeuwenburgh, Sander C. G.; Sprio, Simone; Tampieri, Anna; Iafisco, Michele/titolo:Strontium doped calcium phosphate coatings on poly(etheretherketone) (PEEK) by pulsed electron deposition/doi:10.1016%2Fj.surfcoat.2017.04.012/rivista:Surface & coatings technology/anno:2017/pagina_da:191/pagina_a:199/intervallo_pagine:191–199/volume:319, Surface & Coatings Technology, 319, pp. 191-199
- Accession number :
- edsair.doi.dedup.....7ee5262916f8cb3158a6196d0ef87e90
- Full Text :
- https://doi.org/10.1016/j.surfcoat.2017.04.012