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Foam-like scaffolds for bone tissue engineering based on a novel couple of silicate-phosphate specular glasses: synthesis and properties

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Abstract

Glass–ceramic scaffolds mimicking the structure of cancellous bone were produced via sponge replication technique by using a polyurethane foam as template and glass powder below 30 μm as inorganic phase. Specifically, a SiO2-based glass of complex composition and its corresponding P2O5-based “specular” glass were used as materials for scaffolding. The polymeric sponge was thermally removed and the glass powders were sintered to obtain a replica of the template structure. The scaffolds were investigated and compared from a structural, morphological and mechanical viewpoint by assessing their crystalline phases, volumetric shrinkage, pores content and interconnection, mechanical strength. In addition, the scaffolds were soaked in acellular simulated body fluid to investigate their in vitro behaviour. The produced scaffolds have a great potential for bone reconstructive surgery because their features, such as shape, strength, bioactivity and bioresorption, can be easily tailored according to the end use.

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Acknowledgements

The authors gratefully acknowledge Regione Piemonte (Ricerca Sanitaria Finalizzata 2008) that funded this research work.

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Authors and Affiliations

  1. Materials Science and Chemical Engineering Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy

    Chiara Vitale-Brovarone, Francesco Baino, Oana Bretcanu & Enrica Verné

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  1. Chiara Vitale-Brovarone
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  2. Francesco Baino
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  3. Oana Bretcanu
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  4. Enrica Verné
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Correspondence to Chiara Vitale-Brovarone.

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Vitale-Brovarone, C., Baino, F., Bretcanu, O. et al. Foam-like scaffolds for bone tissue engineering based on a novel couple of silicate-phosphate specular glasses: synthesis and properties. J Mater Sci: Mater Med 20, 2197–2205 (2009). https://doi.org/10.1007/s10856-009-3788-z

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  • DOI: https://doi.org/10.1007/s10856-009-3788-z

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