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Biomimetic Hydroxyapatite Growth on Functionalized Surfaces of Ti-6Al-4V and Ti-Zr-Nb Alloys.

Pylypchuk IeV, Petranovskaya AL, Gorbyk PP, Korduban AM, Markovsky PE, Ivasishin OM - Nanoscale Res Lett (2015)

Bottom Line: Coating process was carried out in a 10×-concentrated simulated body fluid (SBF)-synthetic analog of human body plasma.By XRD, we found influence of thermal conditions on HA crystal formation and size.X-ray photoelectron spectroscopy showed that in the Ti-6AL-4V sample the observed Ca/P ratio reach 0.97, whereas in the Ti-Zr-Nb sample the observed Ca/P ratio reach 1.15.

View Article: PubMed Central - PubMed

Affiliation: Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, 17 General Naumov Str., Kyiv, 03164, Ukraine, chemind@ukr.net.

ABSTRACT
A biomimetic approach for coating titanium-containing alloys with hydroxyapatite (HA) is reported in the article. Two types of Ti-containing alloys were chosen as an object for coating: Ti-6Al-4V (recommended for orthopedic application) and a novel highly biocompatible Ti-Zr-Nb alloy, with good mechanical compatibility due to a modulus that is more close to that of human bones (E ≈ 50 GPa instead of 110 GPa in Ti-6Al-4V). Coating process was carried out in a 10×-concentrated simulated body fluid (SBF)-synthetic analog of human body plasma. The effect of oxidized and carboxylated alloy surface on formation of biomimetic hydroxyapatite has been studied. By XRD, we found influence of thermal conditions on HA crystal formation and size. SEM images and Fourier transform infrared confirmed that hydroxyapatite with different morphology, crystallinity, and Ca/P ratio formed on metallic surfaces. X-ray photoelectron spectroscopy showed that in the Ti-6AL-4V sample the observed Ca/P ratio reach 0.97, whereas in the Ti-Zr-Nb sample the observed Ca/P ratio reach 1.15.

No MeSH data available.


Related in: MedlinePlus

X-ray diffraction patterns of Ti-Zr-Nb (a) and Ti-6Al-4V (b) alloys immersed in 10×-SBF for 24 h
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Fig4: X-ray diffraction patterns of Ti-Zr-Nb (a) and Ti-6Al-4V (b) alloys immersed in 10×-SBF for 24 h

Mentions: In the case of 10×-SBF, the HA layer grows no more than 24 h. After that period of time, HA is clearly identifying in IR (Fig. 3) and XRD spectra (Fig. 4).Fig. 3


Biomimetic Hydroxyapatite Growth on Functionalized Surfaces of Ti-6Al-4V and Ti-Zr-Nb Alloys.

Pylypchuk IeV, Petranovskaya AL, Gorbyk PP, Korduban AM, Markovsky PE, Ivasishin OM - Nanoscale Res Lett (2015)

X-ray diffraction patterns of Ti-Zr-Nb (a) and Ti-6Al-4V (b) alloys immersed in 10×-SBF for 24 h
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4546072&req=5

Fig4: X-ray diffraction patterns of Ti-Zr-Nb (a) and Ti-6Al-4V (b) alloys immersed in 10×-SBF for 24 h
Mentions: In the case of 10×-SBF, the HA layer grows no more than 24 h. After that period of time, HA is clearly identifying in IR (Fig. 3) and XRD spectra (Fig. 4).Fig. 3

Bottom Line: Coating process was carried out in a 10×-concentrated simulated body fluid (SBF)-synthetic analog of human body plasma.By XRD, we found influence of thermal conditions on HA crystal formation and size.X-ray photoelectron spectroscopy showed that in the Ti-6AL-4V sample the observed Ca/P ratio reach 0.97, whereas in the Ti-Zr-Nb sample the observed Ca/P ratio reach 1.15.

View Article: PubMed Central - PubMed

Affiliation: Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, 17 General Naumov Str., Kyiv, 03164, Ukraine, chemind@ukr.net.

ABSTRACT
A biomimetic approach for coating titanium-containing alloys with hydroxyapatite (HA) is reported in the article. Two types of Ti-containing alloys were chosen as an object for coating: Ti-6Al-4V (recommended for orthopedic application) and a novel highly biocompatible Ti-Zr-Nb alloy, with good mechanical compatibility due to a modulus that is more close to that of human bones (E ≈ 50 GPa instead of 110 GPa in Ti-6Al-4V). Coating process was carried out in a 10×-concentrated simulated body fluid (SBF)-synthetic analog of human body plasma. The effect of oxidized and carboxylated alloy surface on formation of biomimetic hydroxyapatite has been studied. By XRD, we found influence of thermal conditions on HA crystal formation and size. SEM images and Fourier transform infrared confirmed that hydroxyapatite with different morphology, crystallinity, and Ca/P ratio formed on metallic surfaces. X-ray photoelectron spectroscopy showed that in the Ti-6AL-4V sample the observed Ca/P ratio reach 0.97, whereas in the Ti-Zr-Nb sample the observed Ca/P ratio reach 1.15.

No MeSH data available.


Related in: MedlinePlus