An elucidating study on physical and structural properties of 45S5 glass at different sintering temperatures

Zarifah, N.A.; Lim, Way Foong; Матори, Хамирул Амин; Sidek, H.A.A.; Wahab, Zaidan Abdul; Zainuddin, Norhazlin; Salleh, Mohamad Amran Mohd; Fadilah, B.N.; Fauzana, A.N.

doi:10.1016/j.jnoncrysol.2015.01.005

Cited by 20 publications

(13 citation statements)

References 20 publications

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“…While SG sample sintered at 800 °C, anorthic-Na2Ca3Si6O16 (Sodium Calcium Silicate) and orthorhombic-NaCaPO4 (Sodium Calcium Phosphate) crystalline phases was detected 5 . In the sample that was incorporated with 20% and 40% of SG, diffraction peaks associated with orthorhombic-calcium phosphate silicate [(Ca5(PO4)2SiO4] and rhombohedral--tricalcium phosphate [ -TCP or (Ca3(PO4)2], which was also known as whitlockite was detected along with HA.…”

Section: Resultsmentioning

confidence: 99%

“…Lu et al, 10 found that Ca5(PO4)2SiO4 is a potential candidate material for bone repair which had a greater in vitro apatite-forming ability than HA. Somehow, the phase detected is different with SG sintered at 800 °C which is anorthic-Na2Ca3Si6O16 (Sodium Calcium Silicate) and Orthorhombic-Sodium Calcium Phosphate (NaCaPO4) 5 . The loss of Na is due to decomposition of Na2CO3 from the SG 5 .…”

Section: Resultsmentioning

confidence: 99%

“…This temperature was selected based on the literature which stated that secondary phase start crystallized at 800 °C sintering temperature 6,7 . Besides that, this temperature was decided based on the results of SG as discussed previous studies 5 The densities of these glasses were determined using the Archimedes's method with ethanol as the immersion liquid using electronic densimeter Alfa Mirage MD-3005. The crystalline phases of samples were determined by X-ray Diffractometer (PANalytical (Philips) X'Pert Pro PW γ040/θ0).…”

Section: Methodsmentioning

confidence: 99%

“…This may due to a lower density of SG compared with HA that will dominate the present system. Besides, decomposition of oxide material in SG might happen during sintering process, and thus contributing to the formation of pores and a reducing density with increasing compositions of the SG 5 . In addition, the attainment of a lower density in the samples incorporated with a higher composition of SG might be also due to the formation of crystalline phases with interlocking crystals along with crystal growth 13 .…”

Section: Intensity (Counts)mentioning

confidence: 99%

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Effect of Hydroxyapatite Reinforced with 45S5 Glass on Physical, Structural and Mechanical Properties

et al. 2016

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This paper presents a study of physical and structural properties of Hydroxyapatite (HA) reinforced with different compositions of 45S5 (SG) bioglasses at different sintering temperatures. Hydroxyapatite reinforced with different compositions of 45S5 bioglasses had been prepared and investigated in terms of density, mechanical strength, and crystalline phases. A decrease in the density of HA was observed after the incorporation of SG, owing to the trapping of air in the SG reinforced HA after sintering process. When compared to the pure HA, different crystalline phases, such as -tricalcium phosphate, calcium phosphate silicate and sodium calcium phosphate, were detected when different compositions of SG were incorporated into the HA

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Intensity (Counts)mentioning

confidence: 99%

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Effect of Hydroxyapatite Reinforced with 45S5 Glass on Physical, Structural and Mechanical Properties

et al. 2016

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“…Bioactive glass microspheres with an average diameter of (60 ± 25) µm (inset of Figure 1c) were incorporated into the 3D printed layer to achieve control over mechanical properties and degradation behaviour. The amorphous nature of the BG microspheres used was confirmed by the XRD pattern in Figure 1c, showing a broad band at diffraction angles between 25 • and 35 • , due to the short-range order of the silicate structure [19,20]. The 3D-printed grids were characterised by interconnected pores poly-dispersed in three dimensions, due to the presence of solvent residues after layer deposition (Figure 2a,b).…”

Section: Fabrication Of Multi-layer Pcl-pgs-bgs Scaffoldsmentioning

confidence: 88%

Multi-layer Scaffolds of Poly(caprolactone), Poly(glycerol sebacate) and Bioactive Glasses Manufactured by Combined 3D Printing and Electrospinning

2020

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Three-dimensional (3D) printing has been combined with electrospinning to manufacture multi-layered polymer/glass scaffolds that possess multi-scale porosity, are mechanically robust, release bioactive compounds, degrade at a controlled rate and are biocompatible. Fibrous mats of poly (caprolactone) (PCL) and poly (glycerol sebacate) (PGS) have been directly electrospun on one side of 3D-printed grids of PCL-PGS blends containing bioactive glasses (BGs). The excellent adhesion between layers has resulted in composite scaffolds with a Young’s modulus of 240–310 MPa, higher than that of 3D-printed grids (125–280 MPa, without the electrospun layer). The scaffolds degraded in vitro by releasing PGS and BGs, reaching a weight loss of ~14% after 56 days of incubation. Although the hydrolysis of PGS resulted in the acidification of the buffer medium (to a pH of 5.3–5.4), the release of alkaline ions from the BGs balanced that out and brought the pH back to 6.0. Cytotoxicity tests performed on fibroblasts showed that the PCL-PGS-BGs constructs were biocompatible, with cell viability of above 125% at day 2. This study demonstrates the fabrication of systems with engineered properties by the synergy of diverse technologies and materials (organic and inorganic) for potential applications in tendon and ligament tissue engineering.

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Bioactivity and Mechanical Properties Characterization of Bioactive Glass Incorporated with Graphene Oxide

El-khooly

Abdraboh

Bakr

et al. 2022

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In this study, the bioactivity and the mechanical properties (Mechanical compressive strength, Hardness, and density) of bioglass (BG) and bioglass/graphene oxide (BG/GO) were investigated. Bioglass in chemical composition [60SiO2_35CaO_5P2O5] was prepared via the sol–gel method. GO was added to the bioglass (BG) with different contents (0.5, 1, 2, and 3) wt.% named as 0.5%GO, 1%GO, 2%GO, and 3%GO samples respectively. The synthesized specimens were characterized by several techniques Fourier Transform Infrared (FT-IR), X-Ray Diffraction (XRD), and Scanning Electron Microscopy (SEM). Compressive strength, Hardness, and density were studied also by different techniques to obtain the optimum Mechanical samples. The biological activity was studied by an in-vitro test in simulated body fluid (SBF) for 33 days. Results showed that: the 0.5%GO sample exhibited optimum mechanical compressive strength by approximately 82% compared to the BG sample. Hardness was increased from 0.5%GO sample up to 1%GO sample compared to BG sample and gradually decreased in 2%GO Sample and 3%GO. Bioactivity results showed deposition of HA layer on the bioglass surface and there was no significant change in it with the addition of graphene oxide.

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An elucidating study on physical and structural properties of 45S5 glass at different sintering temperatures

Cited by 20 publications

References 20 publications

Effect of Hydroxyapatite Reinforced with 45S5 Glass on Physical, Structural and Mechanical Properties

Effect of Hydroxyapatite Reinforced with 45S5 Glass on Physical, Structural and Mechanical Properties

Multi-layer Scaffolds of Poly(caprolactone), Poly(glycerol sebacate) and Bioactive Glasses Manufactured by Combined 3D Printing and Electrospinning

Bioactivity and Mechanical Properties Characterization of Bioactive Glass Incorporated with Graphene Oxide

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