SISKA VIRAGOVA, Eliska, Lenka NOVOTNA, Zdenek CHLUP, Premysl STASTNY, Pavlina SARFY, Jaroslav CIHLAR, Martin KUČÍREK, Leoš BENÁK, Libor STREIT, Jan KOCANDA, Jan SKLENSKÝ, Milan FILIPOVIČ, Martin REPKO, Aleš HAMPL, Irena KOUTNÁ and Klara CASTKOVA. Porous silica-doped calcium phosphate scaffolds prepared via in-situ foaming method. Ceramics International. London: Elsevier, 2024. ISSN 0272-8842. Available from: https://dx.doi.org/10.1016/j.ceramint.2024.07.433.
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Basic information
Original name Porous silica-doped calcium phosphate scaffolds prepared via in-situ foaming method
Authors SISKA VIRAGOVA, Eliska, Lenka NOVOTNA, Zdenek CHLUP, Premysl STASTNY, Pavlina SARFY, Jaroslav CIHLAR, Martin KUČÍREK, Leoš BENÁK, Libor STREIT, Jan KOCANDA, Jan SKLENSKÝ, Milan FILIPOVIČ, Martin REPKO, Aleš HAMPL, Irena KOUTNÁ and Klara CASTKOVA.
Edition Ceramics International, London, Elsevier, 2024, 0272-8842.
Other information
Original language English
Type of outcome Article in a journal
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 5.200 in 2022
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.1016/j.ceramint.2024.07.433
UT WoS 999
Keywords in English Calcium phosphates; Silica; In-situ foaming; Mechanical strength; In vitro response
Tags 14110217, 14110517
Tags Reviewed
Changed by Changed by: Mgr. Tereza Miškechová, učo 341652. Changed: 19/8/2024 10:29.
Abstract
The effect of silica (SiO2) addition (0 wt%-20 wt%) on the microstructural and mechanical properties, as well as the in vitro response of calcium phosphate scaffolds for potential application in bone tissue engineering (BTE) was investigated in this research. Scaffolds characterized by high porosity (77%–88 %) and interconnected spherical pores with a broad range of pore sizes (5–600 μm) were fabricated using in-situ foaming method. Incorporated silica affected the phase transformation of hydroxyapatite (HA) to β-tricalcium phosphate (β-TCP) and led to the development of new crystalline silica-rich phases like silicocarnotite and wollastonite. The reinforcement of silica became apparent during the tests of mechanical properties. Scaffolds with 5 wt% of SiO2 exhibited compressive strength (1.13 MPa) higher than pure HA scaffolds (0.93 MPa). Bone bonding potential of the materials was tested in simulated body fluid (SBF), demonstrating this potential in silica-doped samples. Additionally, degradation experiments showed gradual material degradation, making it suitable for BTE applications. Furthermore, cell culture studies using human mesenchymal stromal cells (MSC) confirmed the scaffold's non-toxicity and provided insights into how the silica content influences cell viability, morphology, and osteogenic potential. The findings of this study offer valuable insights into the design and development of advanced scaffolds with tailored properties for effective BTE applications.
Links
LM2023050, research and development projectName: Národní infrastruktura pro biologické a medicínské zobrazování
Investor: Ministry of Education, Youth and Sports of the CR, Czech BioImaging: National research infrastructure for biological and medical imaging
MUNI/A/1598/2023, interní kód MUName: Zdroje pro tkáňové inženýrství 14
Investor: Masaryk University, Resources pro tissue engineering 14
NU20-08-00402, research and development projectName: Bioarteficiální 3D štep pro meziobratlovou fúzi páteře
Investor: Ministry of Health of the CR, Subprogram 1 - standard
90251, large research infrastructuresName: CzechNanoLab II
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