| 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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Gurevich, Leonid
Aalborg University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Engineering Photo-Cross-Linkable MXene-Based Hydrogels:Durable Conductive Biomaterials for Electroactive Tissues and Interfacescitations
- 2024Engineering Photo-Cross-Linkable MXene-Based Hydrogels: Durable Conductive Biomaterials for Electroactive Tissues and Interfacescitations
- 2022Epoxy Compositions with Reduced Flammability Based on DER-354 Resin and a Curing Agent Containing Aminophosphazenes Synthesized in Bulk Isophoronediaminecitations
- 2022Resolving the Conflict between Strength and Toughness in Bioactive Silica–Polymer Hybrid Materialscitations
- 2021Melt Electrospinning of PET and Composite PET-Aerogel Fibers: An Experimental and Modeling Studycitations
- 2021Melt Electrospinning of PET and Composite PET-Aerogel Fibers: An Experimental and Modeling Studycitations
- 2021Melt Electrospinning of PET and Composite PET-Aerogel Fibers
- 2017Formation of conductive DNA-based nanowires via conjugation of dsDNA with cationic peptidecitations
- 2017Formation of conductive DNA-based nanowires via conjugation of dsDNA with cationic peptidecitations
- 2017Xenon-Water Interaction in Bacterial Suspensions as Studied by NMRcitations
- 2015Nonfouling Tunable beta CD Dextran Polymer Films for Protein Applicationscitations
- 2015Nonfouling tunable βCD dextran polymer films for protein applicationscitations
- 2014Influence of Strain-Hardened Zones and Intermetallic Layers of Explosion Welded and Heat Treated Al/Cu Laminated Metal Composites on the Evolution of Thermal Conductivity Coefficient
Places of action
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article
Resolving the Conflict between Strength and Toughness in Bioactive Silica–Polymer Hybrid Materials
Abstract
Simultaneously improving the strength and toughness of materials is a major challenge. Inorganic-polymer hybrids offer the potential to combine mechanical properties of a stiff inorganic glass with a flexible organic polymer. However, the toughening mechanism at the atomic scale remains largely unknown. Based on combined experimental and molecular dynamics simulation results, we find that the deformation and fracture behavior of hybrids are governed by noncovalent intermolecular interactions between polymer and silica networks rather than the breakage of covalent bonds. We then attempt three methods to improve the balance between strength and toughness of hybrids, namely the total inorganic/organic (I/O) weight ratio, the size of silica nanoparticles, and the ratio of -C-O vs -C-C bonds in the polymer chains. Specifically, for a hybrid with matched silica size and I/O ratio, we demonstrate optimized mechanical properties in terms of strength (1.75 MPa at breakage), degree of elongation at the fracture point (31%), toughness (219 kPa), hardness (1.08 MPa), as well as Young's modulus (3.0 MPa). We also demonstrate that this hybrid material shows excellent biocompatibility and ability to support cell attachment as well as proliferation. This supports the possible application of this material as a strong yet tough bone scaffold material.