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Open AccessFeature PaperArticle

Advanced Open-Celled Structures from Low-Temperature Sintering of a Crystallization-Resistant Bioactive Glass

1
Department of Industrial Engineering, Università degli Studi di Padova, 35122 Padova, Italy
2
Ceramics Department, National Research Centre, Cairo 12622, Egypt
3
Dipartimento di Ingegneria “E. Ferrari”, Università degli Studi di Modena e Reggio Emilia, Via Vignolese 905, 41125 Modena, Italy
*
Author to whom correspondence should be addressed.
Materials 2019, 12(22), 3653; https://doi.org/10.3390/ma12223653
Received: 8 October 2019 / Revised: 31 October 2019 / Accepted: 5 November 2019 / Published: 6 November 2019
(This article belongs to the Special Issue Spotlight on Bioactive Glasses and Their Related Composites)
Most materials for bone tissue engineering are in form of highly porous open-celled components (porosity >70%) developed by means of an adequate coupling of formulations and manufacturing technologies. This paper is dedicated to porous components from BGMS10 bioactive glass, originally designed to undergo viscous flow sintering without crystallization, which is generally known to degrade the bioactivity of 45S5 bioglass. The adopted manufacturing technologies were specifically conceived to avoid any contamination and give excellent control on the microstructures by simple operations. More precisely, ‘green’ components were obtained by digital light processing and direct foaming of glass powders suspended in a photosensitive organic binder or in an aqueous solution, activated with an organic base, respectively. Owing to characteristic quite large sintering window of BGMS10 glass, sintering at 750 °C caused the consolidation of the structures generated at room temperature, without any evidence of viscous collapse. View Full-Text
Keywords: bioglass; crystallization-resistant bioactive glasses; sintering; foams; additive manufacturing; scaffolds bioglass; crystallization-resistant bioactive glasses; sintering; foams; additive manufacturing; scaffolds
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MDPI and ACS Style

Elsayed, H.; Rincon Romero, A.; Bellucci, D.; Cannillo, V.; Bernardo, E. Advanced Open-Celled Structures from Low-Temperature Sintering of a Crystallization-Resistant Bioactive Glass. Materials 2019, 12, 3653.

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