Simple and Acid-Free Hydrothermal Synthesis of Bioactive Glass 58SiO2-33CaO-9P2O5 (wt%)

The paper focuses on the acid-free hydrothermal process for the synthesis of bioactive glass. The new method avoids the use of harmful acid catalysts, which are usually used in the sol-gel process. On the other hand, the processing time was reduced compared with the sol-gel method. A well-known tern...

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Bibliographic Details
Published inCrystals (Basel) Vol. 11; no. 3; p. 283
Main Authors Anh Tuan, Ta, V. Guseva, Elena, Anh Tien, Nguyen, Tan Dat, Ho, Vuong, Bui Xuan
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.03.2021
Subjects
acid-free hydrothermal
Acids
Adsorption
bioactive glass
bioactivity
Biocompatibility
Bioglass
Biological activity
Biomedical materials
Body fluids
cell viability
Emission analysis
Fibroblasts
hydroxyapatite
In vitro methods and tests
Inductively coupled plasma
Morphology
Nitrates
Optical emission spectroscopy
Phase composition
Pore size
Sintering
Sol-gel processes
Stainless steel
Synthesis
Thermal analysis
Thermodynamic properties
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Summary:The paper focuses on the acid-free hydrothermal process for the synthesis of bioactive glass. The new method avoids the use of harmful acid catalysts, which are usually used in the sol-gel process. On the other hand, the processing time was reduced compared with the sol-gel method. A well-known ternary bioactive glass 58SiO2-33CaO-9P2O5 (wt%), which has been widely synthesized through the sol-gel method, was selected to apply to this new process. Thermal behavior, textural property, phase composition, morphology, and ionic exchange were investigated by thermal analysis, N2 adsorption/desorption, XRD, FTIR, SEM, and inductively coupled plasma optical emission spectrometry (ICP-OES) analysis. The bioactivity and biocompatibility of synthetic bioactive glass were evaluated by in vitro experiments with a simulated body fluid (SBF) solution and cell culture medium. The obtained results confirmed that the acid-free hydrothermal process is one of the ideal methods for preparing ternary bioactive glass.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst11030283