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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Azevedo, Nuno Monteiro |
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Lança, Maria Carmo
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Publications (9/9 displayed)
- 2024Bioactive Hydroxyapatite Aerogels with Piezoelectric Particlescitations
- 2023Biocomposite Macrospheres Based on Strontium-Bioactive Glass for Application as Bone Fillerscitations
- 2023Biocomposite Macrospheres Based on Strontium-Bioactive Glass for Application as Bone Fillerscitations
- 2023Extensive Investigation on the Effect of Niobium Insertion on the Physical and Biological Properties of 45S5 Bioactive Glass for Dental Implantcitations
- 2023Hydroxyapatite-Barium Titanate Biocoatings Using Room Temperature Coblastingcitations
- 2022Characterization of a Biocomposite of Electrospun PVDF Membranes with Embedded BaTiO3 Micro- and Nanoparticlescitations
- 2015Osteogenisis enhancement of hydroxyapatite based materials by electrical polarization
- 2014Electrical polarization of a chitosan-hydroxyapatite composite
- 2010Charge Carriers Injection/Extraction at the Metal-Polymer Interface and Its Influence in the Capacitive Microelectromechanical Systems-Switches Actuation Voltage
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document
Electrical polarization of a chitosan-hydroxyapatite composite
Abstract
Both hydroxyapatite (HA) and chitosan (CS) are biomaterials with known medical applications. Synthetic hydroxyapatite [HA, Ca10(PO4)6(OH)2] is a bioceramic widely used in hard tissue regeneration. Chitosan is a polysaccharide obtained from chitin present in exoskeleton of crustaceans and in funghi. This biopolymer has a great potential for biomedical applications in wound dressing because it is biodegradable, hypoallergenic, an antibacterial agent and can clot blood [1]. All these properties also make CS a suitable material to add to HA used in orthopedic and dental surgery to help improve healing and osseointegration. Because of the piezoelectric character of bone [2] electrical stress can accelerate remodeling and regeneration of bone. In the 1990’s Yamasihita and coworkers [3] started using thermal polarization of HA to increase its bioactivity. In this work a composite of chitosan n and hydroxypatite was produced and electrically polarized by thermal polarization. Thermally stimulated discharge currents technique (TSDC) was used to study resulting polarization.