| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Brauer, Delia S.
Friedrich Schiller University Jena
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Dispersion, ionic bonding and vibrational shifts in phospho-aluminosilicate glasses †
- 2024Dispersion, ionic bonding and vibrational shifts in phospho-aluminosilicate glasses
- 2024Dispersion, ionic bonding and vibrational shifts in phospho-aluminosilicate glasses
- 2024Tailoring the Mechanical Properties of Metaluminous Aluminosilicate Glasses by Phosphate Incorporation
- 2024Phosphate/Silicate Ratio Allows for Fine-Tuning of Bioactive Glass Crystallisation and Glass-Ceramic Microstructure
- 2024Phosphate/Silicate Ratio Allows for Fine-Tuning of Bioactive Glass Crystallisation and Glass-Ceramic Microstructure
- 2023Surface Crystallization of Barium Fresnoite Glass: Annealing Atmosphere, Crystal Morphology and Orientationcitations
- 2023Surface Crystallization of Barium Fresnoite Glass: Annealing Atmosphere, Crystal Morphology and Orientationcitations
- 2023Surface crystallization of barium fresnoite glass : annealing atmosphere, crystal morphology and orientationcitations
- 2021Crystallization study of sol–gel derived 13-93 bioactive glass powdercitations
- 2021Nano-imaging confirms improved apatite precipitation for high phosphate/silicate ratio bioactive glasses
- 2021Nano-imaging confirms improved apatite precipitation for high phosphate/silicate ratio bioactive glassescitations
- 2021Nano-imaging confirms improved apatite precipitation for high phosphate/silicate ratio bioactive glasses
- 2020New insights into the crystallization process of sol‐gel–derived 45S5 bioactive glasscitations
- 2020New insights into the crystallization process of sol‐gel–derived 45S5 bioactive glasscitations
- 2020Tailoring the mechanical properties of metaluminous aluminosilicate glasses by phosphate incorporationcitations
- 2020Mg or Zn for Ca substitution improves the sintering of bioglass 45S5citations
- 2020Influence of vanadium on optical and mechanical properties of aluminosilicate glassescitations
- 2020Calorimetric approach to assess the apatite-forming capacity of bioactive glassescitations
- 201831P NMR characterisation of phosphate fragments during dissolution of calcium sodium phosphate glassescitations
- 2016Controlling the ion release from mixed alkali bioactive glasses by varying modifier ionic radii and molar volumecitations
- 2016Bioglass and bioactive glasses and their impact on healthcarecitations
- 2015Influence of zinc and magnesium substitution on ion release from Bioglass 45S5 at physiological and acidic pHcitations
Places of action
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article
Influence of zinc and magnesium substitution on ion release from Bioglass 45S5 at physiological and acidic pH
Abstract
Ion release of Mg- and Zn-substituted Bioglass 45S5 (46.1 SiO2-2.6 P2O5-26.9 CaO-24.3Na2O; mol%; with 0, 25, 50, 75 or 100% of calcium replaced bymagnesium/zinc) was investigated at pH 7.4 (Tris buffer) and pH 4 (acetic acid/sodium acetate buffer) in static and dynamic dissolution experiments. Despite Mg2+ and Zn2+ having the same charge and comparable ionic radii, they influenced the dissolution behaviour in very different ways. In Tris, Mgsubstituted glasses showed similar ion release as 45S5, while Zn-substituted glasses showed negligible ion release. At low pH, however, release behaviour was similar, with all glasses releasing large percentages of ions within a few minutes. Precipitation of crystalline phases also varied, as Mg- and Zn-substitution inhibited apatite formation, and Zn-substitution resulted in formation of zinc phosphate phases at low pH. These results are relevant for glasses used in aluminium-free glass ionomer bone cements, as they show that Zn/Mg-substituted glasses release ions similarly fast as glasses containing no Zn/Mg, suggesting that these ions are no prerequisite for ionomer glasses. Zn-substituted glasses may potentially be used as controlled-release materials, which release antibacterial zinc ions when needed only, i.e. at low pH conditions (e.g. bacterial infection), but not at normal physiological pH conditions.