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Preparation, characterization and cytocompatibility of bioactive coatings on porous calcium-silicate-hydrate scaffolds
The major goal of this research was to investigate and characterize the deposition of a biomimetic apatitelike coating onto the surface of 3D porous calcium-silicate-hydrate scaffolds with suitable bioactivity for potential application in bone tissue engineering. Basically, Portland cement, water, sand and lime were mixed for preparing the slurry which was poured into molds, and fine aluminum powder was added as foaming agent resulting on the formation of porous 3D structures. After aging for 28 days, these porous inorganic scaffolds were immersed in calcium chloride supersaturated solution in PBS for 7 days at 37 C for the biomimetic layer deposition. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier Transformed Infrared Spectroscopy (FTIR) techniques were used in order to characterize the porous scaffolds and the apatite-like biomimetic coating. The results have showed that 3D constructs were successfully produced with interconnected porosity, compressive strength and cytocompatibility appropriate for potential use as an alternative in trabecular bone repair.
Preparation, characterization and cytocompatibility of bioactive coatings on porous calcium-silicate-hydrate scaffolds
The major goal of this research was to investigate and characterize the deposition of a biomimetic apatitelike coating onto the surface of 3D porous calcium-silicate-hydrate scaffolds with suitable bioactivity for potential application in bone tissue engineering. Basically, Portland cement, water, sand and lime were mixed for preparing the slurry which was poured into molds, and fine aluminum powder was added as foaming agent resulting on the formation of porous 3D structures. After aging for 28 days, these porous inorganic scaffolds were immersed in calcium chloride supersaturated solution in PBS for 7 days at 37 C for the biomimetic layer deposition. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier Transformed Infrared Spectroscopy (FTIR) techniques were used in order to characterize the porous scaffolds and the apatite-like biomimetic coating. The results have showed that 3D constructs were successfully produced with interconnected porosity, compressive strength and cytocompatibility appropriate for potential use as an alternative in trabecular bone repair.
Preparation, characterization and cytocompatibility of bioactive coatings on porous calcium-silicate-hydrate scaffolds
Herstellung, Charakterisierung und Gewebeverträglichkeit bioaktiver Beschichtungen auf porösem Calciumsilicathydrat-Knochenersatzmaterial
Mansur, Alexandra A.P. (author) / Mansur, Herman S. (author)
2010
7 Seiten, 7 Bilder, 1 Tabelle, 38 Quellen
Article (Journal)
English
Herstellverfahren , Gewebeverträglichkeit , Biokeramik , Bioaktivität , Calciumsilicathydrat , Stützgewebe (Biologie) , poröser Körper , Tissue-Engineering , Knochengewebe , Portlandzement , biomimetischer Werkstoff , Aluminium , Schäummittel , Salzlösung , Phosphat , Abscheiden (Beschichten) , Knochenersatzmaterial , nichtmetallisches Beschichten , Portlandzementklinker
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