Abstract
Silicon-containing calcium phosphate (Si-CaP) coatings on titanium and austenite steel substrates have been prepared by method of high-frequency magnetron sputtering. The powder of silicon-containing hydroxyapatite Ca 10(PO 4) 6 - x(SiO 4) x(HO) 2 - x (Si-HA), where x = 0. 5 obtained using a mechanochemical technique, was used as a target material. The obtained coatings were X-ray amorphous; the elemental composition of the coatings depended on the composition of the target to be sputtered. The coatings were heated in air for 3 hours to the temperature 700°C with the aim of changing their structure. The bioactivity of the coatings was studied using in-vitro tests. The solution of the simulated body fluid (SBF) oversaturated with respect to HA was used as a model medium. The phase elemental composition and morphology of the deposited and annealed Si-CaP coatings before and after submersion into the solution were controlled using the methods of X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDAX), and scanning electron microscopy (SEM). According to the XFA and IR-spectroscopy data, heat treatment in the air yields the formation of an apatite-like phase in the coating. Thermostating of "metal + coating" specimens in the solution of simulated body fluid revealed that all obtained coatings were biologically active, and a calcium phosphate layer was formed on the coating surface during mineralization. The annealed coatings show a higher chemical stability under physiological conditions as compared to amorphous coatings.
| Original language | English |
|---|---|
| Pages (from-to) | 1202-1207 |
| Number of pages | 6 |
| Journal | Journal of Surface Investigation |
| Volume | 5 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Dec 2011 |
Fingerprint
ASJC Scopus subject areas
- Surfaces, Coatings and Films
Cite this
In-vitro investigation of magnetron-sputtered coatings based on silicon-substituted hydroxyapatite. / Surmeneva, M. A.; Surmenev, R. A.; Pichugin, V. F.; Chernousova, S. S.; Epple, M.
In: Journal of Surface Investigation, Vol. 5, No. 6, 01.12.2011, p. 1202-1207.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - In-vitro investigation of magnetron-sputtered coatings based on silicon-substituted hydroxyapatite
AU - Surmeneva, M. A.
AU - Surmenev, R. A.
AU - Pichugin, V. F.
AU - Chernousova, S. S.
AU - Epple, M.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Silicon-containing calcium phosphate (Si-CaP) coatings on titanium and austenite steel substrates have been prepared by method of high-frequency magnetron sputtering. The powder of silicon-containing hydroxyapatite Ca 10(PO 4) 6 - x(SiO 4) x(HO) 2 - x (Si-HA), where x = 0. 5 obtained using a mechanochemical technique, was used as a target material. The obtained coatings were X-ray amorphous; the elemental composition of the coatings depended on the composition of the target to be sputtered. The coatings were heated in air for 3 hours to the temperature 700°C with the aim of changing their structure. The bioactivity of the coatings was studied using in-vitro tests. The solution of the simulated body fluid (SBF) oversaturated with respect to HA was used as a model medium. The phase elemental composition and morphology of the deposited and annealed Si-CaP coatings before and after submersion into the solution were controlled using the methods of X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDAX), and scanning electron microscopy (SEM). According to the XFA and IR-spectroscopy data, heat treatment in the air yields the formation of an apatite-like phase in the coating. Thermostating of "metal + coating" specimens in the solution of simulated body fluid revealed that all obtained coatings were biologically active, and a calcium phosphate layer was formed on the coating surface during mineralization. The annealed coatings show a higher chemical stability under physiological conditions as compared to amorphous coatings.
AB - Silicon-containing calcium phosphate (Si-CaP) coatings on titanium and austenite steel substrates have been prepared by method of high-frequency magnetron sputtering. The powder of silicon-containing hydroxyapatite Ca 10(PO 4) 6 - x(SiO 4) x(HO) 2 - x (Si-HA), where x = 0. 5 obtained using a mechanochemical technique, was used as a target material. The obtained coatings were X-ray amorphous; the elemental composition of the coatings depended on the composition of the target to be sputtered. The coatings were heated in air for 3 hours to the temperature 700°C with the aim of changing their structure. The bioactivity of the coatings was studied using in-vitro tests. The solution of the simulated body fluid (SBF) oversaturated with respect to HA was used as a model medium. The phase elemental composition and morphology of the deposited and annealed Si-CaP coatings before and after submersion into the solution were controlled using the methods of X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDAX), and scanning electron microscopy (SEM). According to the XFA and IR-spectroscopy data, heat treatment in the air yields the formation of an apatite-like phase in the coating. Thermostating of "metal + coating" specimens in the solution of simulated body fluid revealed that all obtained coatings were biologically active, and a calcium phosphate layer was formed on the coating surface during mineralization. The annealed coatings show a higher chemical stability under physiological conditions as compared to amorphous coatings.
UR - http://www.scopus.com/inward/record.url?scp=84155187522&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84155187522&partnerID=8YFLogxK
U2 - 10.1134/S1027451011120135
DO - 10.1134/S1027451011120135
M3 - Article
VL - 5
SP - 1202
EP - 1207
JO - Journal of Surface Investigation
JF - Journal of Surface Investigation
SN - 1027-4510
IS - 6
ER -