scholarly journals Variation of the properties of sol–gel synthesized bioactive glass 45S5 in organic and inorganic acid catalysts

2021 ◽  
Author(s):  
Pritam Kishore Chakraborty ◽  
Jaideep Adhikari ◽  
Prosenjit Saha
Keyword(s):  
Acetic Acid ◽  
Bioactive Glass ◽  
Sol Gel ◽  
Acid Catalysts ◽  
Inorganic Acid ◽  
Acid Method ◽  
Sol Gel Synthesis

Sol–gel synthesis of BG 45S5 using organic acetic acid as a catalyst was found to be superior to the conventional inorganic acid method.

scholarly journals Influences of Acid Catalysts on The Microstructure, Bioactivity and Cytotoxicity of Bioactive Glass Nanoparticles Prepared by Spray Pyrolysis

2020 ◽  
Author(s):  
Chao-Kuang Kuo ◽  
Liu-Gu Chen ◽  
Chun-Fu Tseng ◽  
Yu-Jen Chou
Keyword(s):  
Acetic Acid ◽  
Lactic Acid ◽  
Hydrochloric Acid ◽  
Bioactive Glass ◽  
Spray Pyrolysis ◽  
Material Science ◽  
Sol Gel ◽  
Drug Carriers ◽  
Acid Catalysts ◽  
Bioactive Glasses

Abstract Bioactive glasses have received considerable attention in the fields of medical and material science and have been applied in applications such as bone implants, tooth fillings, and drug carriers due to their high bioactivity, biocompatibility and biodegradability. Numerous studies applying either conventional glass processes or the sol-gel method have employed Hench's protocol for the fabrication of bioactive glass. However, the effects of various acid catalysts when using spray pyrolysis to synthesize bioactive glass remain unclear. Therefore, in this study, we synthesized bioactive glass nanoparticles using spray pyrolysis and then treated them with the acid catalysts hydrochloric acid, lactic acid and acetic acid. By characterizing the phase information and morphologies of the bioactive glass particles and examining their bioactivity and cytotoxicity, we found that the bioactive glass treated with hydrochloric acid yielded greater cell viability than the lactic acid- and acetic acid-treated specimens; the corresponding mechanisms are discussed in this paper.

Surfactant-assisted sol–gel synthesis of mesoporous bioactive glass microspheres

2019 ◽  
Vol 8 (2) ◽  
pp. 126-134
Author(s):  
Fabian Zemke ◽  
Valerie Schölch ◽  
Maged F Bekheet ◽  
Franziska Schmidt
Keyword(s):  
Bioactive Glass ◽  
Sol Gel ◽  
Glass Microspheres ◽  
Sol Gel Synthesis ◽  
Surfactant Assisted ◽  
Mesoporous Bioactive Glass

Sol-Gel Synthesis of SrTiO3Nanoparticles Using Acetic Acid as a Chelating Agent

2013 ◽  
Vol 457 (1) ◽  
pp. 82-88 ◽  
Author(s):  
Patama Visuttipitukul ◽  
Pat Sooksaen ◽  
Niti Yongvanich
Keyword(s):  
Acetic Acid ◽  
Sol Gel ◽  
Chelating Agent ◽  
Sol Gel Synthesis

Sol-Gel Synthesis and Characterization of SiO2-CaO-P2O5-SrO Bioactive Glass: In Vitro Study

2014 ◽  
Vol 631 ◽  
pp. 30-35 ◽  
Author(s):  
S. Solgi ◽  
M. Shahrezaee ◽  
A. Zamanian ◽  
T.S. Jafarzadeh Kashi ◽  
Majid Raz ◽  
...  
Keyword(s):  
Bioactive Glass ◽  
Mtt Assay ◽  
Sol Gel ◽  
Glass Network ◽  
Biological Properties ◽  
Osteosarcoma Cell ◽  
Three Samples ◽  
Human Osteosarcoma Cell ◽  
Sol Gel Synthesis

Bioactive glass of the type CaO–SrO–P2O5–SiO2was obtained by the sol-gel processing method. Three samples containing 0 mol%, 5 mol% and 10 mol% of SrO were synthesized. The obtained bioactive glasses were characterized by the techniques such as, X-ray diffraction (XRD) and scanning electron microscope (SEM) and the effect of SrO/CaO substitution on in vitro biological properties of the synthesized glasses were evaluated and biocompatibility of the samples was measured using MTT assay. The results showed that incorporation of Sr in the obtained glass network did not result in any structural alteration of it due to the similar role of SrO compared with that of CaO. In vitro experiments with human osteosarcoma cell lines (MG-63) and MTT assay indicated that bioactive glass incorporating 5 mol% of Sr in the composition is non-toxic and revealed good biocompatibility.

AP40 Bioactive Glass Ceramic by Sol-Gel Synthesis: In Vitro Dissolution and Cell-Mediated Bioresorption

2013 ◽  
Vol 541 ◽  
pp. 41-50 ◽  
Author(s):  
Ilaria Cacciotti ◽  
Giorgia Lehmann ◽  
Antonella Camaioni ◽  
Alessandra Bianco
Keyword(s):  
Bioactive Glass ◽  
Human Peripheral Blood ◽  
Sol Gel ◽  
Blood Monocytes ◽  
X Ray Diffraction ◽  
Degradation Behaviour ◽  
Dissolution Tests ◽  
Different Temperatures ◽  
Sol Gel Synthesis

In this work, the sol-gel synthesis of AP40 bioactive glass system was reported. The obtained powder was fully characterised in terms of microstructure, composition and thermal behaviour by X-ray diffraction (XRD) measurements, Fourier transform infrared (FT-IR) spectroscopy, thermogravimetry and differential thermal analysis (TG-DTA).In vitrodissolution tests were performed in order to assess the degradation behaviour of sol-gel derived AP40 samples thermally treated at different temperatures. Finally, preliminary results on cytocompatibility are reported, based on bioresorption activity of human peripheral blood monocytes differentiated into osteoclasts on sintered disks.

Modifying the reactivity of a solid Lewis acid: niobium and antimony doped nanoscopic aluminum fluoride

2018 ◽  
Vol 8 (12) ◽  
pp. 3151-3159 ◽  
Author(s):  
C. P. Marshall ◽  
T. Braun ◽  
E. Kemnitz
Keyword(s):  
Lewis Acid ◽  
High Surface ◽  
Sol Gel ◽  
Acid Catalysts ◽  
Aluminum Fluoride ◽  
Aluminium Fluoride ◽  
Sol Gel Synthesis

A series of acid catalysts were prepared, using niobium and antimony as dopants in the fluorolytic sol–gel synthesis of high surface aluminium fluoride.

Processing of Cr doped SrTiO3 nanoparticles into high surface area aerogels and thin films

2017 ◽  
Vol 1 (8) ◽  
pp. 1662-1667 ◽  
Author(s):  
Felix Rechberger ◽  
Gabriele Ilari ◽  
Christoph Willa ◽  
Elena Tervoort ◽  
Markus Niederberger
Keyword(s):  
Thin Films ◽  
Acetic Acid ◽  
Surface Area ◽  
Surface Functionalization ◽  
High Surface ◽  
Sol Gel ◽  
High Surface Area ◽  
Sol Gel Synthesis ◽  
Concentrated Dispersions

We present the nonaqueous sol–gel synthesis of crystalline SrTi1−xCrxO3 (x = 0, 0.3, 2, 5, 10%) nanoparticles and their processing into highly concentrated dispersions in ethanol by surface functionalization with 2-[2-(2-methoxyethoxy) ethoxy] acetic acid (MEEAA).

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