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Influence of Ceria Addition on Crystallization Behavior and Properties of Mesoporous Bioactive Glasses in the SiO₂-CaO-P₂O₅-CeO₂ System.

ABSTRACT: Knowledge of the crystallization stability of bioactive glasses (BGs) is a key factor in developing porous scaffolds for hard tissue engineering. Thus, the crystallization behavior of three mesoporous bioactive glasses (MBGs) in the 70SiO₂-(26-x)CaO-4P₂O₅-xCeO₂ system (x stands for 0, 1 and 5 mol. %, namely MBG(0/1/5)Ce), prepared using the sol-gel method coupled with the evaporation-induced self-assembly method (EISA), was studied. A thermal analysis of the multiple-component crystallization exotherms from the DSC scans was performed using the Kissinger method. The main crystalline phases of Ca₅(PO₄)2.823(CO₃)_0.22O, CaSiO₃ and CeO₂ were confirmed to be generated by the devitrification of the MBG with 5% CeO₂, MBG5Ce. Increasing the ceria content triggered a reduction in the first crystallization temperature while ceria segregation took place. The amount of segregated ceria of the annealed MBG5Ce decreased as the annealing temperature increased. The optimum processing temperature range to avoid the crystallization of the MBG(0/1/5)Ce powders was established.

SUBMITTER: Anghel EM

PROVIDER: S-EPMC9222617 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Influence of Ceria Addition on Crystallization Behavior and Properties of Mesoporous Bioactive Glasses in the SiO2-CaO-P2O5-CeO2 System.

Anghel Elena Maria EM Petrescu Simona S Mocioiu Oana Catalina OC Cusu Jeanina Pandele JP Atkinson Irina I

Gels (Basel, Switzerland) 20220531 6

Knowledge of the crystallization stability of bioactive glasses (BGs) is a key factor in developing porous scaffolds for hard tissue engineering. Thus, the crystallization behavior of three mesoporous bioactive glasses (MBGs) in the 70SiO2-(26-x)CaO-4P2O5-xCeO2 system (x stands for 0, 1 and 5 mol. %, namely MBG(0/1/5)Ce), prepared using the sol-gel method coupled with the evaporation-induced self-assembly method (EISA), was studied. A thermal analysis ...[more]

PMID: 35735688

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Dataset Information

Influence of Ceria Addition on Crystallization Behavior and Properties of Mesoporous Bioactive Glasses in the SiO₂-CaO-P₂O₅-CeO₂ System.

Publications

Influence of Ceria Addition on Crystallization Behavior and Properties of Mesoporous Bioactive Glasses in the SiO<sub>2</sub>-CaO-P<sub>2</sub>O<sub>5</sub>-CeO<sub>2</sub> System.

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