Mechanical properties of hydroxyapatite-zirconia coatings prepared by magnetron sputtering

Dejun, Kong; Da, Long; Wu, Yulong; Zhou, Chaozheng

doi:10.1016/s1003-6326(11)61147-3

Cited by 33 publications

(14 citation statements)

References 4 publications

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“…Kong et al [88] used magnetron sputtering for the preparation of HAp-zirconia coatings on Ti6Al4V. They proposed that the porous surface of the deposited coating is suitable for conduction of bone tissue growth.…”

Section: Sputter Coating Methodsmentioning

confidence: 99%

Hydroxyapatite Consolidated by Zirconia: Applications for Dental Implant

Sharifianjazi

Pakseresht

Asl

et al. 2020

jcc

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Section: Sputter Coating Methodsmentioning

confidence: 99%

Hydroxyapatite Consolidated by Zirconia: Applications for Dental Implant

Sharifianjazi

Pakseresht

Asl

et al. 2020

jcc

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“…Of the alternative coating technologies available, radio frequency (RF) magnetron sputtering has been shown to be particularly useful for the deposition of CaP coatings due to the ability of the technique to provide greater control of the coating's properties and improved adhesion between the substrate and the coating [65][66][67][68][69][70]. With respect to producing cosubstituted CaP coatings, RF magnetron sputtering allows co-deposition of multiple different target materials Gd 2+ Ca 2+ [46] In 3+ Ca 2+ [47] Bi 3+ Ca 2+ [47] Zr 4+ Ca 2+ [48] simultaneously and therefore provides an alternative and simple method to produce co-substituted CaP coatings [71][72][73]. Several reports in the literature highlight how it has already been used to deposit Sr or Si substituted HAp coatings [70][71][72][73].…”

Section: Introductionmentioning

confidence: 99%

The deposition of strontium and zinc Co-substituted hydroxyapatite coatings

Robinson

Šalma-Ancāne

Stipniece

et al. 2017

J Mater Sci: Mater Med

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The in vitro and in vivo performance of hydroxyapatite (HAp) coatings can be modified by the addition of different trace ions, such as silicon (Si), lithium (Li), magnesium (Mg), zinc (Zn) or strontium (Sr) into the HAp lattice, to more closely mirror the complex chemistry of human bone. To date, most of the work in the literature has considered single ion-substituted materials and coatings, with limited reports on co-substituted calcium phosphate systems. The aim of this study was to investigate the potential of radio frequency magnetron sputtering to deposit Sr and Zn co-substituted HAp coatings using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The FTIR and XPS results highlight that all of the Sr, Zn and Sr-Zn co-substituted surfaces produced are all dehydroxylated and are calcium deficient. All of the coatings contained HPO groups, however; only the pure HAp coating and the Sr substituted HAp coating contained additional CO groups. The XRD results highlight that none of the coatings produced in this study contain any other impurity CaP phases, showing peaks corresponding to that of ICDD file #01-072-1243 for HAp, albeit shifted to lower 2θ values due to the incorporation of Sr into the HAp lattice for Ca (in the Sr and Sr-Zn co-substituted surfaces only). Therefore, the results here clearly show that RF magnetron sputtering offers a simple means to deliver Sr and Zn co-substituted HAp coatings with enhanced surface properties. (a) XRD patterns for RF magnetron sputter deposited hydroxyapatite coatings and (b)-(d) for Sr, Zn and Sr-Zn co-substituted coatings, respectively. The XPS spectra in (b) confirms the presence of a HA sputter deposited coating as opposed to

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“…Afterwards, they were successfully used in dentistry, where they are still considered to be a material of choice for root canal posts, fixed partial dentures, and dental implants [ 12 ]. Moreover, some studies [ 13 , 14 , 15 , 16 ] report the use of TZP as fillers to reinforce the mechanical properties of synthetic hydroxyapatite (HAp) (a biodegradable and biocompatible calcium phosphate ceramic with a bone-like structure, capable of forming strong chemical bonds with natural bone tissue [ 17 ]). Other studies investigated the use of zirconia-based glasses, synthesized via the sol-gel method, as drug delivery systems [ 2 , 18 ] or as coatings capable of improving the biological performance of titanium implants [ 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Zirconia/Hydroxyapatite Composites Synthesized Via Sol-Gel: Influence of Hydroxyapatite Content and Heating on Their Biological Properties

2017

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Zirconia (ZrO2) and zirconia-based glasses and ceramics are materials proposed for use in the dental and orthopedic fields. In this work, ZrO2 glass was modified by adding different amounts of bioactive and biocompatible hydroxyapatite (HAp). ZrO2/HAp composites were synthesized via the sol-gel method and heated to different temperatures to induce modifications of their chemical structure, as ascertained by Fourier transform infrared spectroscopy (FTIR) analysis. The aim was to investigate the effect of both HAp content and heating on the biological performances of ZrO2. The materials’ bioactivity was studied by soaking samples in a simulated body fluid (SBF). FTIR and scanning electron microscopy (SEM)) analyses carried out after exposure to SBF showed that all materials are bioactive, i.e., they are able to form a hydroxyapatite layer on their surface. Moreover, the samples were soaked in a solution containing bovine serum albumin (BSA). FTIR analysis proved that the synthesized materials are able to adsorb the blood protein, the first step of cell adhesion. WST-8 ([2-(2-methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium, monosodium salt]) assay showed that no cytotoxicity effects were induced by the materials’ extract. However, the results proved that bioactivity increases with both the HAp content and the temperature used for the thermal treatment, whereas biocompatibility increases with heating but is not affected by the HAp content.

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Mechanical properties of hydroxyapatite-zirconia coatings prepared by magnetron sputtering

Cited by 33 publications

References 4 publications

Hydroxyapatite Consolidated by Zirconia: Applications for Dental Implant

Hydroxyapatite Consolidated by Zirconia: Applications for Dental Implant

The deposition of strontium and zinc Co-substituted hydroxyapatite coatings

Zirconia/Hydroxyapatite Composites Synthesized Via Sol-Gel: Influence of Hydroxyapatite Content and Heating on Their Biological Properties

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