Structure, phases, and mechanical response of Ti-alloy bioactive glass composite coatings

Nelson, Greg; Nychka, John A.; McDonald, André

doi:10.1016/j.msec.2013.12.017

Cited by 22 publications

(4 citation statements)

References 63 publications

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“…However, they do exhibit potential pro-inflammatory effects. C 2 S and 45S5 are often considered potential coating materials for prosthetic orthopedic and dental implants [6,30]. Plasma spraying represents an effective way to prepare C 2 S and 45S5 coatings [31,32].…”

Section: Discussionmentioning

confidence: 99%

Exposure of the murine RAW 264.7 macrophage cell line to dicalcium silicate coating: assessment of cytotoxicity and pro-inflammatory effects

Chen

Liu

Wei

et al. 2016

J Mater Sci: Mater Med

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Inflammatory effects are significant elements of the immune response to biomaterials. Previously, we reported inflammatory effects in response to dicalcium silicate (Ca2SiO4, C2S) particles. However, the immunological effects of C2S coatings have not been studied. C2S often used as coatings materials in orthopedic and dentistry applications. It may have different effect from C2S particles. Further, it remains unclear whether C2S coating is equally biocompatible as 45S5 coating. The aim of this study was to test the cytotoxicity and pro-inflammatory effects of C2S coating on RAW 264.7 macrophages. C2S and 45S5 coatings were characterized using scanning electron microscopy (SEM), atomic force microscopy (AFM), energy dispersive analysis (EDS) and X-ray diffraction (XRD). inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to detect ionic concentrations after soaking coated discs in medium. The cytotoxicity of C2S and 45S5 coatings against RAW 264.7 macrophages was measured using the LDH Cytotoxicity Assay Kit, Cell Counting Kit-8 (CCK-8) assays and flow cytometry for apoptosis assays. The gene and protein expression of TNF-α, IL-6 and IL-1β were detected using RT-q PCR and ELISA, respectively. The tested coating materials are not cytotoxic to macrophages. The C2S-coated surface stimulated macrophages to express pro-inflammatory mediators, such as TNF-α, IL-6 and IL-1β, and C2S coating caused less IL-6 but greater IL-1β production than the 45S5 coating. C2S coating have no cytotoxicity when directly cultured with macrophages. C2S and 45S5 coatings both have the potential to induce pro-inflammatory effects, and the biocompatibility of C2S is similar to that of 45S5.

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Section: Discussionmentioning

confidence: 99%

Exposure of the murine RAW 264.7 macrophage cell line to dicalcium silicate coating: assessment of cytotoxicity and pro-inflammatory effects

Chen

Liu

Wei

et al. 2016

J Mater Sci: Mater Med

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“…The flame temperature should be sufficiently high to ensure the melting of the feedstock material (Ref 2). The flame spray process usually exhibits gas temperatures between 2000 and 3000°C ( Ref 4,52), whereas the particle impact velocity is usually below 100 m/s (Ref 2). As shown in Table 2, the flame spray process parameters include nozzle geometry, nozzle stand-off distance from the substrate, carrier gas pressure, feedstock material, and combustion gas flow ratio (e.g., fuel-to-oxygen ratio).…”

Section: Flame Sprayingmentioning

confidence: 99%

A Review of Thermal Spray Metallization of Polymer-Based Structures

et al. 2016

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A literature review on the thermal spray deposition of metals onto polymer-based structures is presented. The deposition of metals onto polymer-based structures has been developed to enhance the thermal and electrical properties of the resulting metal-polymer material system. First, the description of the thermal spray metallization processes and technologies for polymer-based materials are outlined. Then, polymer surface preparation methods and the deposition of metal bond-coats are explored. Moreover, the thermal spray process parameters that affect the properties of metal deposits on polymers are described, followed by studies on the temperature distribution within the polymer substrate during the thermal spray process. The objective of this review is devoted to testing and potential applications of thermal-sprayed metal coatings deposited onto polymer-based substrates. This review aims to summarize the state-of-the-art contributions to research on the thermal spray metallization of polymer-based materials, which has gained recent attention for potential and novel applications.

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“…Metal with microporous structure has been attracting great attention due to its many applications ranging from aerospace and biomedical to electronics [1][2][3][4]. The preparation of precise micropores on metal can endow metals with some special properties; for example, it can improve heat dissipation to enhance the service life of aerospace materials [5,6], to increase the anti-reflection performance of material to be applied in stealth [7][8][9], to reinforce the fixation of the lubricating layer to prepare an anti-adhesion surface [10,11], and to strengthen the adhesion of cells to improve the biocompatibility of materials in the biomedical field [12][13][14]. The existing methods of micropores fabrication mainly include anodizing [15], ion beam etching [16,17], femtosecond laser drilling, and so on [10,11], but these methods have certain limitations, such as poor uniformity, low processing efficiency, and high cost.…”

Section: Introductionmentioning

confidence: 99%

Rapid Fabrication of Wavelength-Scale Micropores on Metal by Femtosecond MHz Burst Bessel Beam Ablation

Yang

et al. 2022

Nanomaterials

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The preparation of the wavelength-scale micropores on metallic surfaces is limited by the high opacity of metal. At present, most micropores reported in the literature are more than 20 µm in diameter, which is not only large in size, but renders them inefficient for processing so that it is difficult to meet the needs of some special fields, such as aerospace, biotechnology, and so on. In this paper, the rapid laser fabrications of the wavelength-scale micropores on various metallic surfaces are achieved through femtosecond MHz burst Bessel beam ablation. Taking advantage of the long-depth focal field of the Bessel beam, high-density micropores with a diameter of 1.3 µm and a depth of 10.5 µm are prepared on metal by MHz burst accumulation; in addition, the rapid fabrication of 2000 micropores can be achieved in 1 s. The guidelines and experimental results illustrate that the formations of the wavelength-scale porous structures are the result of the co-action of the laser-induced periodic surface structure (LIPSS) effect and Bessel beam interference. Porous metal can be used to store lubricant and form a lubricating layer on the metallic surface, thus endowing the metal resistance to various liquids’ adhesion. The microporous formation process on metal provides a new physical insight for the rapid preparation of wavelength-scale metallic micropores, and promotes the application of porous metal in the fields of catalysis, gas adsorption, structural templates, and bio-transportation fields.

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Structure, phases, and mechanical response of Ti-alloy bioactive glass composite coatings

Cited by 22 publications

References 63 publications

Exposure of the murine RAW 264.7 macrophage cell line to dicalcium silicate coating: assessment of cytotoxicity and pro-inflammatory effects

Exposure of the murine RAW 264.7 macrophage cell line to dicalcium silicate coating: assessment of cytotoxicity and pro-inflammatory effects

A Review of Thermal Spray Metallization of Polymer-Based Structures

Rapid Fabrication of Wavelength-Scale Micropores on Metal by Femtosecond MHz Burst Bessel Beam Ablation

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