Preparation of Porous Glass Scaffolds by Salt Sintering Technique

Erika Davim; Maria Helena F.V. Fernandes; Ana Maria R. Senos

doi:10.4028/www.scientific.net/MSF.587-588.52

Paper Titles

Contrasting Morphology of Calcium Phosphate Powders Prepared by the Wet Method Using Poly (Ethylene Glycol)
p.32

Formation of Secondary Phases on Hydroxyapatite Powders for Bone Regeneration: Effect of Water Source
p.37

KrF Excimer Laser Ablation of Human Enamel
p.42

Physical Properties of an Artificial Extracellular Matrix Based on a Crosslinked Elastin-Like Polymer
p.47

Preparation of Porous Glass Scaffolds by Salt Sintering Technique
p.52

Assessment of the Corrosion Behavior of Nd-Fe-B Magnets Used in Dentistry
p.57

Hybrid Bioactive Glass-Polyvinyl Alcohol Prepared by Sol-Gel
p.62

Marine Precursors-Based Biomorphic SiC Ceramics
p.67

β-PVDF Membranes Induce Cellular Proliferation and Differentiation in Static and Dynamic Conditions
p.72

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Preparation of Porous Glass Scaffolds by Salt Sintering Technique

Abstract:

This paper reports a preliminary study on the development and characterization of a porous calcium phosphate glass-ceramic for tissue engineering application. To obtain porous glass scaffolds, a mixture of 3CaO.P2O5-SiO2-MgO glass (grain size below 20 'm) and NaCl with 200- 300 'm of particle size was taken in the volume proportion 1:1. The mixture was shaped into cylindrical samples (10 mm diameter x 10 mm thick) by using unidirectional pressing. The sintering thermal cycle was selected by means of thermal analyses (DTA/TG and dilatometry) in order to attain a high enough cohesion among the glass particles. After thermal consolidation, the salt was dissolved in water, resulting in highly porous materials. The effect of the sintering thermal cycle on the structure and microstructure characteristics of the scaffolds was investigated in this paper.