Structural analysis of hydroxyapatite coatings on titanium

Ducheyne, Paul; Raemdonck, W Van; Heughebaert, J. C.; Heughebaert, M.

doi:10.1016/0142-9612(86)90063-3

Cited by 403 publications

(156 citation statements)

References 12 publications

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“…19) sputtering coating of hydroxyapatite exhibited relative poor adhesive strength with substrate. 15,19) Although the Ti-coating was bioactive, the adhesive strength between the coating and Ti Formation of Hydroxyapatite on Ti-Coated Ti-Zr-Cu-Pd Bulk Metallic Glass…”

Section: Resultsmentioning

confidence: 99%

“…6. The simple chemical treatment method is the most convenient method to improve bioactivity of Ti alloys, 12) in comparison with other hydroxyapatite surface modification technologies, such as plasma sputtering 15) and laser sputtering. 19) sputtering coating of hydroxyapatite exhibited relative poor adhesive strength with substrate.…”

Section: Resultsmentioning

confidence: 99%

“…The formation of hydroxyapatite is normally used to evaluate the bioactivity of metallic implants, because apatite is chemically similar to the mineral components of bones, thus supporting bone ingrowths. [11][12][13][14][15][16][17][18][19] A simple chemical and thermal two-step treatment method has been widely used, because the bone-like apatite can form in biomimetic solutions, which can be realized on the conventional alloys. 11,12) Accordingly, the two-step chemical treatment method is chosen to be applied on Ti 40 Zr 10 -Cu 36 Pd 14 and Ti-coated Ti 40 Zr 10 Cu 36 Pd 14 BMGs to investigate the formation of bone-like hydroxyapatite.…”

Section: Resultsmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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

et al. 2009

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“…The dissolution rate of crystalline HA has been observed to be very low, while that of the amorphous phase HA is considerably high [1]. Various techniques have been used to deposit calcium phosphate on metal substrates such as sputtering, electron beam deposition, laser deposition, and plasma spraying [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. So far, plasma spraying is the only technique being commercialized and most widely used because of its simplicity and cost effectiveness.…”

Section: Introductionmentioning

confidence: 99%

Processing and Development of Nano-Scale HA coatings for Biomedical Application

Rabiei

Thomas

2004

MRS Proc.

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Functionally graded Hydroxyapatite coating with graded Crystallinity across the thickness of the film has been processed and tested as a more effective orthopedic/ dental implant coating. The present study aims to increase the service-life of an orthopedic/ dental implant by creating materials that form a strong, long lasting, bond with the Ti substrate as well as juxtaposed bone. The health relatedness of the new material is to increase bonding between an implant and juxtaposed bone so that a patient who has received joint or dental replacement surgery may quickly return to a normal active lifestyle. Cross-sectional transmission electron microscopy analysis displayed that the films have a graded crystal structure with the crystalline layer near the substrate and the amorphous layer at the top surface. Compositional analysis was performed using SEM-EDX at the top surface as well as STEM-EDX at the cross section of the film. The average calcium to phosphorous ratio at the surface is 1.46, obtained by SEM-EDX, The Ca/P ratios in the crystalline and amorphous layers of the film are 1.6 to 1.7, close to the ratio of 1.67 for HA. INTRODUCTIONIn order to improve the bioactivity of metal implants, Hydroxyapatite (HA: CaJ0(P0 4 )

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“…HAp has been formed on metals and polymers using various techniques [15,16], such as dip coating [17,18], electrophoretic deposition [19,20], the alternate soaking process [21][22][23][24], thermal spraying [25,26], dynamic mixing [27], RF magnetron sputtering [28,29], pulsed laser ablation [30] and low-voltage deposition [31]. The coating temperature of HNS during HAp formation is important, because the release of N 2 from HNS by high-temperature treatment causes the phase change from austenite to ferrite [32,33].…”

Section: Introductionmentioning

confidence: 99%

Preparation and biological evaluation of hydroxyapatite-coated nickel-free high-nitrogen stainless steel

Sasaki

Inoue

Katada

et al. 2012

Science and Technology of Advanced Materials

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Calcium phosphate was formed on nickel-free high-nitrogen stainless steel (HNS) by chemical solution deposition. The calcium phosphate deposition was enhanced by glutamic acid covalently immobilized on the surface of HNS with trisuccinimidyl citrate as a linker. X-ray diffraction patterns and Fourier transform infrared spectra showed that the material deposited on glutamic acid-immobilized HNS within 24 h was low-crystallinity calcium-deficient carbonate-containing hydroxyapatite (HAp). The biological activity of the resulting HAp-coated HNS was investigated by using a human osteoblast-like MG-63 cell culture. The HAp-coated HNS stimulated the alkaline-phosphate activity of the MG-63 culture after 7 days. Therefore, HAp-coated HNS is suitable for orthopedic devices and soft tissue adhesion materials.

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Structural analysis of hydroxyapatite coatings on titanium

Cited by 403 publications

References 12 publications

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

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

Processing and Development of Nano-Scale HA coatings for Biomedical Application

Preparation and biological evaluation of hydroxyapatite-coated nickel-free high-nitrogen stainless steel

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