Hydroxyapatite/titania sol–gel coatings on titanium–zirconium alloy for biomedical applications☆

Wen, Cuié; Xu, Wei; Hu, Wangyu; Hodgson, Peter

doi:10.1016/j.actbio.2006.10.004

Cited by 153 publications

(81 citation statements)

References 32 publications

(41 reference statements)

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“…HA or apatite) coatings on Ti-based materials include sol-gel [9,10], H 2 O 2 [11], alkali-heat [12][13][14][15] and acid [16] treatments. Of these processes, the alkali-heat treatment technique proposed by Kokubo's team [14] is a cost-effective and efficient way to induce apatite coating formation on Ti-based substrates.…”

Section: Introductionmentioning

confidence: 99%

Influence of calcium ion deposition on apatite-inducing ability of porous titanium for biomedical applications

Chen

Plessis

et al. 2009

Acta Biomaterialia

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Section: Introductionmentioning

confidence: 99%

Influence of calcium ion deposition on apatite-inducing ability of porous titanium for biomedical applications

Chen

Plessis

et al. 2009

Acta Biomaterialia

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“…7, is about 1.67 after a 15-day immersion, indicating the formation of stoichiometric hydroxyapatite. 21) In some cases, 22,23) some Ca/P ratios of calcium phosphate layer formed by chemical treatment are located between 1:50$1:65, which layer is calcium deficient apatite with carbonated CO 3 À2 . The mechanism of apatite-formation in this research can be proposed as follows.…”

Section: Resultsmentioning

confidence: 99%

Formation of Hydroxyapatite on Ti-Coated Ti-Zr-Cu-Pd Bulk Metallic Glass

et al. 2009

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In this research, Ti coating was conducted on Ti 40 Zr 10 Cu 36 Pd 14 bulk metallic glass (BMG) in order to increase the formation rate of hydroxyapatite layer. The formation behavior of bone-like hydroxyapatite on Ti-coated and uncoated Ti 40 Zr 10 Cu 36 Pd 14 bulk metallic glasses (BMGs) was studied. The surface morphology of Ti-coated and uncoated Ti 40 Zr 10 Cu 36 Pd 14 BMG was investigated by scanning electron microscopy and energy dispersive X-ray spectroscopy. The results revealed that the alkali pretreatment in 5 M NaOH solution at 60 C for 24 h had a beneficial effect on the formation of porous sodium titanate on Ti-coated Ti 40 Zr 10 Cu 36 Pd 14 BMG. A bone-like hydroxyapatite layer was able to form on the alkali-treated Ti-coated Ti 40 Zr 10 Cu 36 Pd 14 BMG after a short-time immersion in simulated body fluid (SBF). On the contrary, hydroxyapatite formation was not observed on the uncoated Ti 40 Zr 10 Cu 36 Pd 14 BMG after the same chemical treatments.

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“…Sol-gel offers control of homogeneity, chemical composition, and microstructure. [15] The morphology is dependant on several precursor variables and often involves very small hydroxyapatite granules that grow over time. Solgel techniques have the ability to coat complex shapes but have limited uniformity.…”

Section: Introductionmentioning

confidence: 99%

Deposition of Bio‐Integration Ceramic Hydroxyapatite by Pulsed‐Pressure MOCVD Using a Single Liquid Precursor Solution

Krumdieck

Reyngoud

Barnett

et al. 2010

Chemical Vapor Deposition

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Pulsed-pressure (PP) metal-organic(MO)CVD is used to deposit layers of calcium phosphate onto flat bio-medical grade titanium (Ti6Al4V) substrates. Inexpensive calcium lactate and trimethyl phosphate (TMP), combined in a methanol solution, forms the precursor. A range of precursor mixtures is studied by thermogravimetric analysis (TGA) to assess reaction pathways. The surface topography, morphology, composition, and crystallinity are studied over a range of deposition temperatures and precursor concentrations. The resulting films are analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Raman spectroscopy (RS), and micro-indentation. The films are continuous and the size of surface structures increases at higher temperatures and precursor concentration. The films consist of amorphous calcium phosphate in elemental Ca/P ratios similar to the standard bio-ceramic, hydroxyapatite (1.66).

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Hydroxyapatite/titania sol–gel coatings on titanium–zirconium alloy for biomedical applications☆

Cited by 153 publications

References 32 publications

Influence of calcium ion deposition on apatite-inducing ability of porous titanium for biomedical applications

Influence of calcium ion deposition on apatite-inducing ability of porous titanium for biomedical applications

Formation of Hydroxyapatite on Ti-Coated Ti-Zr-Cu-Pd Bulk Metallic Glass

Deposition of Bio‐Integration Ceramic Hydroxyapatite by Pulsed‐Pressure MOCVD Using a Single Liquid Precursor Solution

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