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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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Gomes, Ps
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2021Assessment of the Bone Healing Process Mediated by Periosteum-Derived Mesenchymal Stem Cells' Secretome and a Xenogenic Bioceramic-An In Vivo Study in the Rabbit Critical Size Calvarial Defect Model.citations
- 2018Processing, characterization, and in vivo evaluation of poly (L-lactic acid)-fish gelatin electrospun membranes for biomedical applicationscitations
- 2018Development of bioactive tellurite-lanthanide ions-reinforced hydroxyapatite composites for biomedical and luminescence applicationscitations
- 2017Incorporation of glass-reinforced hydroxyapatite microparticles into poly(lactic acid) electrospun fibre mats for biomedical applicationscitations
- 2016Effect of Sterilization Methods on Electrospun Poly(lactic acid) (PLA) Fiber Alignment for Biomedical Applicationscitations
- 2015Smart electroconductive bioactive ceramics to promote in situ electrostimulation of bonecitations
- 2015Novel cerium doped glass-reinforced hydroxyapatite with antibacterial and osteoconductive properties for bone tissue regenerationcitations
- 2014Processing strategies for smart electroconductive carbon nanotube-based bioceramic bone graftscitations
- 2013Development and characterization of lanthanides doped hydroxyapatite composites for bone tissue applicationcitations
- 2012Development and Characterization of Ag2O-Doped ZnLB Glasses and Biological Assessment of Ag2O-ZnLB-Hydroxyapatite Compositescitations
- 2010Evaluation of human osteoblastic cell response to plasma-sprayed silicon-substituted hydroxyapatite coatings over titanium substratescitations
- 2010New titanium and titanium/hydroxyapatite coatings on ultra-high-molecular-weight polyethylene-in vitro osteoblastic performancecitations
- 2009Assessment of the osteoblastic cell response to a zinc glass reinforced hydroxyapatite composite (Zn-GRHA)citations
- 2008Biocompatibility evaluation of DLC-coated Si3N4 substrates for biomedical applicationscitations
Places of action
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article
Processing strategies for smart electroconductive carbon nanotube-based bioceramic bone grafts
Abstract
Electroconductive bone grafts have been designed to control bone regeneration. Contrary to polymeric matrices, the translation of the carbon nanotube (CNT) electroconductivity into oxide ceramics is challenging due to the CNT oxidation during sintering. Sintering strategies involving reactive-bed pressureless sintering (RB + P) and hot-pressing (HP) were optimized towards prevention of CNT oxidation in glass/hydroxyapatite (HA) matrices. Both showed CNT retentions up to 80%, even at 1300 degrees C, yielding an increase of the electroconductivity in ten orders of magnitude relative to the matrix. The RB + P CNT compacts showed higher electroconductivity by similar to 170% than the HP ones due to the lower damage to CNTs of the former route. Even so, highly reproducible conductivities with statistical variation below 5% and dense compacts up to 96% were only obtained by HP. The hot-pressed CNT compacts possessed no acute toxicity in a human osteoblastic cell line. A normal cellular adhesion and a marked orientation of the cell growth were observed over the CNT composites, with a proliferation/differentiation relationship favouring osteoblastic functional activity. These sintering strategies offer new insights into the sintering of electroconductive CNT containing bioactive ceramics with unlimited geometries for electrotherapy of the bone tissue.