Functionally graded calcium phosphate coatings produced by ion beam sputtering/mixing deposition

Wang, C.X; Chen, Z.Q; Wang, M; Liu, Z.Y; Wang, P.L; Zheng, Shanbo

doi:10.1016/s0142-9612(00)00319-7

Cited by 20 publications

(12 citation statements)

References 8 publications

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“…For example, CaP coatings on titanium could be made functionally graded system, in order to provide gradient of bioactivity and good mechanical strength [553,554]. Functionally graded CaP coating can be designed so that the top coated layer can provide CaP such as TCP or ACP for accelerated bone formation, while the layer underneath is a dense HAp layer with lower resorption rate and stronger bonding to the implant’s surface [555,556,557,558,559,560,561]. Some of these coatings can be considered as functionally gradient implants because the decomposition of HAp to TCP leads to BCP formation.…”

Section: Functionally Graded Calcium Phosphatesmentioning

confidence: 99%

Calcium Phosphate Bioceramics: A Review of Their History, Structure, Properties, Coating Technologies and Biomedical Applications

2017

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Calcium phosphate (CaP) bioceramics are widely used in the field of bone regeneration, both in orthopedics and in dentistry, due to their good biocompatibility, osseointegration and osteoconduction. The aim of this article is to review the history, structure, properties and clinical applications of these materials, whether they are in the form of bone cements, paste, scaffolds, or coatings. Major analytical techniques for characterization of CaPs, in vitro and in vivo tests, and the requirements of the US Food and Drug Administration (FDA) and international standards from CaP coatings on orthopedic and dental endosseous implants, are also summarized, along with the possible effect of sterilization on these materials. CaP coating technologies are summarized, with a focus on electrochemical processes. Theories on the formation of transient precursor phases in biomineralization, the dissolution and reprecipitation as bone of CaPs are discussed. A wide variety of CaPs are presented, from the individual phases to nano-CaP, biphasic and triphasic CaP formulations, composite CaP coatings and cements, functionally graded materials (FGMs), and antibacterial CaPs. We conclude by foreseeing the future of CaPs.

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Section: Functionally Graded Calcium Phosphatesmentioning

confidence: 99%

Calcium Phosphate Bioceramics: A Review of Their History, Structure, Properties, Coating Technologies and Biomedical Applications

2017

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“…Since plasma-spraying is a high-temperature and line-of-sight process, there are also some aspects that were not solved yet, such as the deteriorating effect of intense heat on substrates, non-uniformity in coating density, wide range of band strength and the unavoidable limitations when trying to coat implant devices with complex shapes [53][54][55][56]. Other studied approaches have been sputter coating techniques that have been shown to be able to increase the bond strength between the coating and the substrates [57][58][59]. However, the inherent drawbacks are that the deposition and the process itself are very slow, the coatings quite thin, or their cohesion not adequate.…”

Section: Ca-p Coatings: Present Statusmentioning

confidence: 99%

Nature-inspired calcium phosphate coatings: present status and novel advances in the science of mimicry

Oliveira

Mano

Reis

2003

Current Opinion in Solid State and Materials Science

100

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There has been a growing awareness in materials science that the adaptation of nature biological processes can lead to significant progresses in the controlled fabrication of advanced materials for an all range of applications. To learn from, understand and apply these natural processes for producing calcium phosphate coatings that are biologically similar to bone apatite, mimicking its properties, has driven the attention of many researchers in recent years. This article reviews the most relevant advances in this emerging research field, pointing out several approaches being introduced and explored by distinct laboratories.

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“…And preliminary animal tests have shown that there is a faster bone bonding between the implants produced by Ar + beam mixing and N + beam mixing processes than there is with coatings produced by the Ar + beam mixing and the Ar + beam mixing processes . 23 The possible reasons may be, first, that because the mass of N + ion is smaller than that of Ar + ion, the size of nano-crystallites in the coatings produced by Ar + beam mixing and N + beam mixing processes was smaller. Second, the higher Ca-P ratio in the coatings produced by Ar + beam mixing and N + beam mixing processes also contributed to the differences in dissolution rate and intracellular activity.…”

Section: Discussionmentioning

confidence: 99%

Ion-beam-sputtering/mixing deposition of calcium phosphate coatings. I. Effects of ion-mixing beams

Wang

et al. 2001

J. Biomed. Mater. Res.

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Ion-beam-sputtering/mixing deposition was used to produce thin calcium phosphate coatings on titanium substrate from the hydroxyapatite target. The mixing beam could be either Ar(+) or N(+) ions. It was found that as-deposited coatings were amorphous. No distinct peak of the hydroxyl group was observed in FTIR spectra of the coatings, but new spectral peaks, brought about during the deposition process, were present for CO(3)(2-). Scanning electron microscopy revealed that the deposited coatings had a uniform and dense structure. The calcium-to-phosphorous ratio of these coatings varied between 2.0 and 3.0. Compared with the calcium phosphate coatings produced by Ar(+) beam-mixing deposition, the calcium phosphate coatings produced by N(+) beam-mixing deposition exhibited a higher dissolution rate in the physiologic saline solution and showed a lower proliferation rate of osteoblast cells.

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Functionally graded calcium phosphate coatings produced by ion beam sputtering/mixing deposition

Cited by 20 publications

References 8 publications

Calcium Phosphate Bioceramics: A Review of Their History, Structure, Properties, Coating Technologies and Biomedical Applications

Calcium Phosphate Bioceramics: A Review of Their History, Structure, Properties, Coating Technologies and Biomedical Applications

Nature-inspired calcium phosphate coatings: present status and novel advances in the science of mimicry

Ion-beam-sputtering/mixing deposition of calcium phosphate coatings. I. Effects of ion-mixing beams

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