People | Locations | Statistics |
---|---|---|
Naji, M. |
| |
Motta, Antonella |
| |
Aletan, Dirar |
| |
Mohamed, Tarek |
| |
Ertürk, Emre |
| |
Taccardi, Nicola |
| |
Kononenko, Denys |
| |
Petrov, R. H. | Madrid |
|
Alshaaer, Mazen | Brussels |
|
Bih, L. |
| |
Casati, R. |
| |
Muller, Hermance |
| |
Kočí, Jan | Prague |
|
Šuljagić, Marija |
| |
Kalteremidou, Kalliopi-Artemi | Brussels |
|
Azam, Siraj |
| |
Ospanova, Alyiya |
| |
Blanpain, Bart |
| |
Ali, M. A. |
| |
Popa, V. |
| |
Rančić, M. |
| |
Ollier, Nadège |
| |
Azevedo, Nuno Monteiro |
| |
Landes, Michael |
| |
Rignanese, Gian-Marco |
|
Ahmed, I.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2023Nanocomposite Hydrogel-Based Optical Fiber Probe for Continuous Glucose Sensing
- 2021Development and Characterization of Phosphate-Based Glass Coatings via Suspension High-Velocity Oxy-Fuel (SHVOF) Thermal Spray Processcitations
- 2021Antibacterial effect of titanium dioxide-doped phosphate glass microspheres filled total-etch dental adhesive on S. mutans biofilm
- 2020The effect of MgO/TiO2 on structural and crystallization behavior of near invert phosphate-based glassescitations
- 2019In vitro cellular testing of strontium/calcium substituted phosphate glass discs and microspheres shows potential for bone regenerationcitations
- 2019Correction: Ga and Ce ion-doped phosphate glass fibres with antibacterial properties and their composite for wound healing applications (Journal of Materials Chemistry B (2019) DOI: 10.1039/c9tb00820a)citations
- 2016Structural Disorder in Doped Zirconias, Part I: The Zr0.8Sc0.2-xYxO1.9 (0.0 <= x <= 0.2) Systemcitations
- 2016Oxygen vacancy ordering within anion-deficient Ceriacitations
- 2016In vitro degradation and mechanical properties of PLA-PCL copolymer unit cell scaffolds generated by two-photon polymerizationcitations
- 2014Phosphate-based glass fiber vs. bulk glass: Change in fiber optical response to probe in vitro glass reactivitycitations
- 2014Effect of Cellulose Nanowhiskers on Surface Morphology, Mechanical Properties, and Cell Adhesion of Melt-Drawn Polylactic Acid Fiberscitations
- 2014Surface modification of aramid fibres by graphene oxide nano-sheets for multiscale polymer compositescitations
- 2013Cytocompatibility, degradation, mechanical property retention and ion release profiles for phosphate glass fibre reinforced composite rodscitations
- 2013Cytocompatibility, degradation, mechanical property retention and ion release profiles for phosphate glass fibre reinforced composite rodscitations
- 2005Effect of iron on the surface, degradation and ion release properties of phosphate-based glass fibrescitations
- 2002Wear resistance of a high-nitrogen austenitic stainless steel coated with nitrogenated amorphous carbon filmscitations
Places of action
Organizations | Location | People |
---|
article
Effect of iron on the surface, degradation and ion release properties of phosphate-based glass fibres
Abstract
<p>Phosphate-based glass fibres (PGF) have the unique characteristic of being completely soluble in an aqueous environment, releasing bioactive and biocompatible ions. They have been proposed as tissue engineering scaffolds for craniofacial skeletal muscle regeneration, where myoblasts are seeded directly onto the fibres. Studies have shown that these cells have a preference in their initial attachment to fibres of certain composition and size, which in turn control the rate of degradation. This study investigated the relationship between the surface properties, degradation properties and ion release (cationic and anionic species) by altering the chemical composition of the PGF. Iron oxide (Fe<sub>2</sub> O<sub>3</sub>) was incorporated into glasses containing P<sub>2</sub> O<sub>5</sub> (50 mol%), CaO (30 mol%) and Na<sub>2</sub>O (20 mol%). Six glass compositions with Fe<sub>2</sub>O<sub>3</sub> ranging from 0 to 5 mol% by replacing the equivalent Na<sub>2</sub>O mol% were investigated. Contact angle measurements showed that polar interactions occurring on the glass surfaces diminished with increasing Fe<sub>2</sub> O<sub>3</sub> content. This behaviour was reflected in the estimated surface energies of the glasses, where the overall surface energy decreased with increasing Fe<sub>2</sub>O<sub>3</sub> content due to the decrease in polar or acid/base component. The incorporation of up to 5 mol% Fe<sub>2</sub>O<sub>3</sub> into PGF resulted in a significant reduction in the degradation rate (by two orders of magnitude), which can be related to the formation of more hydration resistant P-O-Fe bonds. However, the degradation rate increased with decreasing fibre diameter (comparing average diameters of 31.6 ± 6.5 μm versus 13.1 ± 1.3 μm) for a given mass of fibre, and this is related to the surface area to volume ratio. Taken together the results suggest that fibres with the larger diameters and containing 3-5 mol% Fe<sub>2</sub>O<sub>3</sub> could initially be a more durable scaffold than ones with 1 or 2 mol% Fe<sub>2</sub>O<sub>3</sub> for initial cell attachment.</p>