Characterization of ZnO substituted 45S5 Bioactive Glasses and Glass - Ceramics

Srivastava, Ankesh Kumar; Pyare, Ram

doi:10.5539/jmsr.v1n2p207

Cited by 31 publications

(44 citation statements)

References 5 publications

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“…FT-IR studies clearly indicate that all glass ceramic samples show bone bonding ability. The addition of ZnO has not decreased the formation of HCA layer, in contrary to the results by Srivastava and Pyare [7] where the addition of >1 % ZnO into the system decreased the formation of the apatite layer. In our study it was found that increasing the concentration of ZnO (particularly >3.63 mol %) in the system predominantly reduced the degree of crystallization of the system which was confirmed by XRD ( Fig.…”

Section: Structural Characterizationcontrasting

confidence: 53%

“…The nucleation temperature at 740°C and crystallization temperature at 910°C for the parent glass (BZnO) was reduced to 654°C and 746°C, respectively, after 15.53 mol % substitution of ZnO into the system. This result can be attributed to the decrease in viscosity of the system with the increase of ZnO as reported by Doremus [14] and Alizadeh et al [15], Kamitakahara et al [11], Mirhadi et al [16] and Srivastar and Pyare [7].…”

Section: In Vitro Bioactivity Analysissupporting

confidence: 50%

“…This may be interpreted as the presence of silica as a basic building constituent. No separate phosphate band was observed in the FT-IR spectra, which may be due to the limited amount of P 2 O 5 present in the system but hydroxyl band (1700 to 1600 cm −1 ) and (3600 to -3200 cm −1 ) appeared due to the presence of hydroxyapatite phase [6,7,[17][18][19][20][21].…”

Section: Differential Scanning Calorimetric Analysismentioning

confidence: 99%

“…Zinc is an essential trace element [2,[4][5][6][7] whose addition promotes bone formation as it stimulates osteoblast proliferation and differentiation [8]. In addition to that it has profound antibacterial properties [9,10].…”

Section: Introductionmentioning

confidence: 99%

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In vitro evaluation of bioactivity of SiO2-CaO-P2O5-Na2O-CaF2-ZnO glass-ceramics

Riaz

Zia

Saleemi

et al. 2014

Materials Science-Poland

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Zinc is an essential trace element that stimulates bone formation but it is also known as an inhibitor of apatite crystal growth. In this work addition of ZnO to SiO 2 -CaO-P 2 O 5 -Na 2 O-CaF 2 glass-ceramic system was made by conventional meltquenching technique. DSC curves showed that the addition of ZnO moved the endothermic and exothermic peaks to lower temperatures. X-ray diffraction analysis did not reveal any additional phase caused by ZnO addition and showed the presence of wollastonite and hydroxyapatite crystalline phases only in all the glass-ceramic samples. As bio-implant apatite forming ability is an essential condition, the surface reactivity of the prepared glass-ceramic specimens was studied in vitro in Kokubo's simulated body fluid (SBF) [1] with ion concentration nearly equal to human blood plasma for 30 days at 37°C under static condition. Atomic absorption spectroscopy (AAS) was used to study the changes in element concentrations in soaking solutions and XRD, FT-IR and SEM were used to elucidate surface properties of prepared glass-ceramics, which confirmed the formation of HCAp on the surface of all glass-ceramics. It was found that the addition of ZnO had a positive effect on bioactivity of glassceramics and made it a potential candidate for restoration of damaged bones.

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Section: Structural Characterizationcontrasting

confidence: 53%

Section: In Vitro Bioactivity Analysissupporting

confidence: 50%

Section: Differential Scanning Calorimetric Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

In vitro evaluation of bioactivity of SiO2-CaO-P2O5-Na2O-CaF2-ZnO glass-ceramics

Riaz

Zia

Saleemi

et al. 2014

Materials Science-Poland

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“…Figure 1 shows the FTIR spectra for BG particles, PU scaffold and PU-BG scaffolds. The FTIR spectra for BG particles showed the existence of Si-O-Si bending vibrations at 499 cm -1 , Si-O stretching at 934 cm -1 and asymmetric Si-O-Si stretching band at 1029 cm -1 [4]. The FTIR spectra for 0BG scaffold shows the PU characteristic bands since no BG particles were introduced into the samples.…”

Section: Characterizationsmentioning

confidence: 94%

Effect of polyurethane (PU) – bioactive glass (BG) ratio on the development of BG reinforced PU scaffold

Lip¹,

Abdullah²,

Zubir³

2016

AIP Conference Proceedings

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Abstract. Nowadays, variety of biomaterials may be used to produce implanted scaffolds such as metal-based, ceramicbased and polymer-based materials. In this study, porous bioactive glass (BG) reinforced polyurethane (PU) composite scaffolds with different PU:BG mass ratio (10 to 40 wt%) were fabricated as a potential candidate for synthetic bone graft. The PU-BG scaffolds were prepared using solvent casting combined with salt leaching (SCPL) method and were subjected to several characterizations including fourier transform infra-red (FTIR) spectroscopy, scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDX). FTIR spectrum showed the trace of BG particles in the PU-BG scaffolds with high concentration of BG (30 and 40 wt%). EDX confirmed that the white particles in the PU-BG scaffold as observed via SEM micrograph were BG particles. A slightly round and irregular pore structures were observed for the PU-BG scaffolds prepared in this study. More homogeneous pore structures were observed as the amount of BG in the PU-BG scaffold is increased. The overall pore size for all scaffolds was in the range of 130 to 400 μm which is suitable for the growth of bone tissue.

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In vitro evaluation of human endometrial stem cell‐derived osteoblast‐like cells’ behavior on gelatin/collagen/bioglass nanofibers’ scaffolds

Sharifi

Ebrahimi‐Barough

Panahi

et al. 2016

J Biomedical Materials Res

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New biomimetic nanocomposite scaffold was prepared by the combination of nanofibrilar bioglass containing copper ion as the inorganic phase and gelatin/collagen as the organic phase of bone tissue. In this study for fabrication of the scaffold, freeze drying and electrospinning methods were used, and genipin was used as the cross-linking agent for increasing the mechanical properties of the scaffold. The growth and viability of human endometrial stem cell-derived osteoblast-like cells were investigated on this biomimetic scaffold. Cellular biocompatibility assays illustrated that this scaffold has more viabilities and osteoblast growths in comparison with two-dimensional culture. Copper ion increased growth of the osteoblasts on nanocomposite scaffold containing nanofibrous bioglass. Thus, the results obtained from this study indicate that the prepared scaffold is suitable for osteoblast growth and attachment; thus, potentially, this nanocomposite scaffold is an appropriate scaffold for bone tissue engineering. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2210-2219, 2016.

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Characterization of ZnO substituted 45S5 Bioactive Glasses and Glass - Ceramics

Cited by 31 publications

References 5 publications

In vitro evaluation of bioactivity of SiO2-CaO-P2O5-Na2O-CaF2-ZnO glass-ceramics

In vitro evaluation of bioactivity of SiO2-CaO-P2O5-Na2O-CaF2-ZnO glass-ceramics

Effect of polyurethane (PU) – bioactive glass (BG) ratio on the development of BG reinforced PU scaffold

In vitro evaluation of human endometrial stem cell‐derived osteoblast‐like cells’ behavior on gelatin/collagen/bioglass nanofibers’ scaffolds

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