Synthesis, Characterization, and Bioactivity Evaluation of Amorphous and Crystallized 58S Bioglass Nanopowders

Dehaghani, Majid Taghian; Ahmadian, Mehdi; Fathi, Mohammadhossein

doi:10.1111/ijac.12293

Cited by 20 publications

(10 citation statements)

References 36 publications

(53 reference statements)

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“…Tissue engineering has been challenged to improve BG chemical composition considering biocompatibility and antibacterial effects. In the present study, the crystalline phases analysis revealed the presence of bioactive phases for bone healing such as TTCP and DCS . Regarding 58S BG containing 5%CaBr 2 processed at 1150°C, the XRD spectra (Fig.…”

Section: Discussionsupporting

confidence: 50%

“…The XRD spectra of the BG powders revealed a broad diffraction band, confirming its amorphous and glassy nature . Moreover, peaks of tetracalcium phosphate (TTCP), dicalcium silicate (DCS), and bromine oxide were identified that confirmed the success of the modified sol‐gel synthesis.…”

Section: Resultsmentioning

confidence: 73%

“…The increase of bromine phases was noticed with increasing of the amount of CaBr 2 in the BG composition. Considering the crystalline phases, XRD peaks for calcium phosphate phases, wollastonite, pseudowollastonite and quartz were detected as result from the high heat treatment . Pseudowollastonite is a polymorph of wollastonite, that possesses a transition temperature around 1250°C.…”

Section: Resultsmentioning

confidence: 99%

“…That can be associated with the excess of CaBr 2 in such chemical composition. However, the thermal treatment promoted the formation of pseudowollastonite and wollastonite …”

Section: Resultsmentioning

confidence: 99%

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Inhibition of multi‐species oral biofilm by bromide doped bioactive glass

Galárraga-Vinueza

Passoni

et al. 2017

J Biomedical Materials Res

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Bioactive glass is an attractive biomaterial that has shown excellent osteogenic and angiogenic effects for oral bone repairing procedures. However, anti-biofilm potential related to such biomaterial has not been completely validated, mainly against multi-species biofilms involved in early tissue infections. The aim of the present study was to evaluate the anti-biofilm effect of 58 S bioactive glass embedding calcium bromide compounds at different concentrations. Bioactive glass free or containing 5, or 10 wt % CaBr was synthesized by alkali sol-gel method and then characterized by physco-chemical analyses and scanning electron microscopy (SEM). Then, samples were tested by microbiological assays using optical density, real time q-PCR, and SEM. Bioactive glass particles showed accurate chemical composition and an angular shape with a bimodal size distribution ranging from 0.6 to 110 µm. The mean particle size was around 29 µm. Anti-biofilm effect was recorded for 5 wt % CaBr -doped bioactive glass against S. mitis, V. parvula, P. gingivais, S. gordoni, A. viscosus, F, nucleatum, P. gingivais. F. nucleatum, and P. gingivalis. Such species are involved in the biofilm structure related to infections on hard and soft tissues in the oral cavity. The incorporation of calcium bromide into bioactive glass can be a strategy to enhance the anti-biofilm potential of bioactive glasses for bone healing and infection treatment. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1994-2003, 2017.

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Section: Discussionsupporting

confidence: 50%

Section: Resultsmentioning

confidence: 73%

Section: Resultsmentioning

confidence: 99%

“…That can be associated with the excess of CaBr 2 in such chemical composition. However, the thermal treatment promoted the formation of pseudowollastonite and wollastonite …”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Inhibition of multi‐species oral biofilm by bromide doped bioactive glass

Galárraga-Vinueza

Passoni

et al. 2017

J Biomedical Materials Res

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“…58S is a bioactive glass that is comprised of three components including 58% SiO2, 38% CaO and 4% P2O5 11 . It was reported that sol–gel derived 58S (SiO2‐CaO‐P2O5) could attach both soft and hard tissues without forming the fibrous layer and produce apatite when it is exposed to simulated body fluid (SBF) 12,13 …”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of 58S bioactive glass based scaffold with Kaempferol‐containing Zein coating for bone tissue engineering

et al. 2020

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The aim of this study was to prepare a porous scaffold out of 58S bioactive glass as the bare and coated with Zein to improve mechanical properties and acting as a carrier for Kaempferol controlled delivery. Porosity and morphology, mechanical properties, drug release behavior, bioactivity, cell attachment, and biodegradation of the scaffolds were evaluated accordingly. Obtained results indicated that the scaffolds coated by (7wt/v %) Zein solution, showed the highest mechanical strength (3.06 ± 0.4 MPa) and desirable porous morphology. These scaffolds could support bioactivity, cell attachment, and provide sustained drug release in the safe range of Kaempferol concentration confirmed via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide analysis. Overall, this study showed that the Zein-coated scaffold possesses superior properties rather than bare scaffold, and the scaffolds coated with 7wt/v % Zein solution could be considered as appropriate scaffolds for bone regeneration.

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Effect of ammonia catalyst on the morphological structures of sol–gel‐derived bioactive glass 58S for dental application

Lin

Zabidi

Lai

et al. 2022

Oral Science International

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Aim: To determine the effect of ammonia on the surface morphology and chemical properties of sol-gel-derived bioactive glass 58S powders for dental application.Materials and Methods: Bioactive glass (BG) 58S powder was synthesized using a sol-gel method. Hydrochloric acid solution was mixed with ethanol, distilled water, and tetraethyl orthosilicate for 30 min, followed by the addition of triethyl phosphate and calcium nitrate tetrahydrate. The mixture was stirred until the particles were completely dissolved. Three different groups were prepared: BG-1 (no ammonia added), BG-2 (3 ml of ammonia added), and BG-3 (5 ml of ammonia added). The gel was then aged and calcined. The solidified gel was crushed until the powder passed through a 200-μm sieve. Subsequently, the surface morphology was evaluated using a scanning electron microscopy, whereas the chemical composition was assessed using a Fourier transform infrared spectroscopy (FTIR).Results: BG-2 and BG-3 exhibited small-sized cluster grains and a more porous micro-or nano-structures. The crystallinity of the BG powder and its surface porosity increased with increased ammonia. The average microparticle sizes of the BG-1, BG-2, and BG-3 were 196 AE 31, 45 AE 21, and 20 AE 9 μm, respectively, with nanograins in BG-2 and BG-3 showed strong tendency of agglomeration. FTIR verified the existence of a silica network-based glass, with the Si-O-Si functional group visible in the spectrum of all groups. Conclusion:The addition of ammonia as catalyst during the hydrolysis process resulted in small glassy grains and more porous surfaces of BG 58S, which is anticipated to promote greater bioactivity.

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Synthesis, Characterization, and Bioactivity Evaluation of Amorphous and Crystallized 58S Bioglass Nanopowders

Cited by 20 publications

References 36 publications

Inhibition of multi‐species oral biofilm by bromide doped bioactive glass

Inhibition of multi‐species oral biofilm by bromide doped bioactive glass

Preparation and characterization of 58S bioactive glass based scaffold with Kaempferol‐containing Zein coating for bone tissue engineering

Effect of ammonia catalyst on the morphological structures of sol–gel‐derived bioactive glass 58S for dental application

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