A novel, doped calcium silicate bioceramic synthesized by sol–gel method: Investigation of setting time and biological properties

2019 ◽  
Vol 108 (1) ◽  
pp. 56-66 ◽  
Author(s):  
Mohamed Mahmoud Abdalla ◽  
Christie Ying Kei Lung ◽  
Prasanna Neelakantan ◽  
Jukka Pekka Matinlinna
Keyword(s):  
Calcium Silicate ◽  
Setting Time ◽  
Sol Gel ◽  
Biological Properties ◽  
Gel Method ◽  
Sol Gel Method

Size control and biological properties of monodispersed mesoporous bioactive glass sub-micron spheres

RSC Advances ◽  
2014 ◽  
Vol 4 (43) ◽  
pp. 22678-22687 ◽  
Author(s):  
Qing Hu ◽  
Yuli Li ◽  
Guohou Miao ◽  
Naru Zhao ◽  
Xiaofeng Chen
Keyword(s):  
Bioactive Glass ◽  
Sol Gel ◽  
Size Control ◽  
Biological Properties ◽  
Gel Method ◽  
Sol Gel Method ◽  
Good Biocompatibility ◽  
Controllable Size ◽  
Mesoporous Bioactive Glass

Monodispersed mesoporous bioactive glass sub-micron spheres with a controllable size and good biocompatibility were fabricated by an improved sol–gel method.

scholarly journals Influence of the Heat Treatment on the Particles Size and on the Crystalline Phase of TiO2 Synthesized by the Sol-Gel Method

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2364 ◽  
Author(s):  
Michelina Catauro ◽  
Elisabetta Tranquillo ◽  
Giovanni Dal Poggetto ◽  
Mauro Pasquali ◽  
Alessandro Dell’Era ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Tio2 Nanoparticles ◽  
Sol Gel ◽  
Biological Properties ◽  
Thermal Treatments ◽  
Crystalline Phases ◽  
Gel Method ◽  
Sol Gel Method ◽  
Different Content ◽  
Ideal Technique

Titanium biomaterials’ response has been recognized to be affected by particles size, crystal structure, and surface properties. Chemical and structural properties of these nanoparticle materials are important, but their size is the key aspect. The aim of this study is the synthesis of TiO2 nanoparticles by the sol-gel method, which is an ideal technique to prepare nanomaterials at low temperature. The heat treatment can affect the structure of the final product and consequently its biological properties. For this reason, the chemical structure of the TiO2 nanoparticles synthesized was investigated after each heat treatment, in order to evaluate the presence of different phases formed among the nanoparticles. FTIR spectroscopy and XRD have been used to evaluate the different structures. The results of these analyses suggest that an increase of the calcination temperature induces the formation of mixed-crystalline-phases with different content of anatase and rutile phases. The results obtained by SEM measurements suggest that an increase in the particles size accompanied by a noticeable aggregation of TiO2 nanoparticles is due to high temperatures achieved during the thermal treatments and confirmed the presence of different content of the two crystalline phases of titanium dioxide.

Synthesis of orange emitting Sm3+ doped sodium calcium silicate phosphor by sol-gel method for photonic device applications

2020 ◽  
Vol 46 (16) ◽  
pp. 26434-26439 ◽  
Author(s):  
Harpreet Kaur ◽  
M. Jayasimhadri ◽  
Mukesh K. Sahu ◽  
P. Koteswara Rao ◽  
N.S. Reddy
Keyword(s):  
Calcium Silicate ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Photonic Device ◽  
Silicate Phosphor ◽  
Sodium Calcium ◽  
Device Applications

Calcium silicate phosphors obtained by the sol-gel method

1994 ◽  
Vol 51 (9-10) ◽  
pp. 290-296 ◽  
Author(s):  
Ts. I. Khristov ◽  
N. V. Popovich ◽  
S. S. Galaktionov ◽  
N. P. Soshchin
Keyword(s):  
Calcium Silicate ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Silicate Phosphors

scholarly journals Physicochemical and Biological Properties of Mg-Doped Calcium Silicate Endodontic Cement

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1843
Author(s):  
Kyung-Hyeon Yoo ◽  
Yong-Il Kim ◽  
Seog-Young Yoon
Keyword(s):  
Mechanical Properties ◽  
Calcium Silicate ◽  
Setting Time ◽  
Sol Gel ◽  
Biological Properties ◽  
Hydration Properties ◽  
Calcium Silicate Cement ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Physicochemical And Biological Properties ◽  
Mg Doped

Calcium silicate-based cement has been widely used for endodontic repair. However, it has a long setting time and needs to shorten setting time. This study investigated the effects of magnesium (Mg) ion on the setting reaction, mechanical properties, and biological properties of calcium silicate cement (CSC). Sol-gel route was used to synthesize Mg ion-doped calcium silicate cement. Synthesized cement was formulated with the addition of different contents of Mg ion, according to 0, 1, 3, 5 mol% of Mg ion-doped calcium silicate. The synthesized cements were characterized with X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). We also evaluated the physicochemical and biological properties of cement, such as the setting time, compressive strength, micro-hardness, simulated body fluid (SBF) immersion, cytotoxicity, and cell differentiation tests. As a result, the Mg ion improves the hydration properties of calcium silicate cement, and the setting time is reduced by increasing the amounts of Mg ion. However, the mechanical properties deteriorated with increasing Mg ion, and 1 and 3 mol% Mg-doped calcium silicate had appropriate mechanical properties. Also, the results of biological properties such as cytotoxicity, ALP activity, and ARS staining improved with Mg ion. Consequently, the optimal condition is 3 mol% of Mg ion-doped calcium silicate (3%Mg-CSC).

An Evaluation of Bioactive Glass/Calcium Phosphate Cement Composite, Synthesized via Sol-Gel Method

2016 ◽  
Vol 720 ◽  
pp. 162-166
Author(s):  
M. Shahrezaee ◽  
Majid Raz ◽  
M. Sanati ◽  
Ali Sadeghi ◽  
Farbod Tondnevis ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Bioactive Glass ◽  
Calcium Phosphate Cement ◽  
Setting Time ◽  
Sol Gel ◽  
Cement Composite ◽  
Xrd Analysis ◽  
Amorphous Structure ◽  
Gel Method ◽  
Sol Gel Method

In this study four types of calcium phosphate cement/bioactive glass composites has been synthesized via mixing and sol-gel method and the effect of hydroxyapatite/tricalcium phosphate ratio to its mechanical properties and setting time was investigated. The prepared samples were characterized using X-ray diffraction (XRD), foureir transform infra-red spectroscopy (FTIR), scanning electron microscopy (SEM), mechanical testing and setting time measurement. XRD analysis showed amorphous structure of the prepared bioactive glass. But the patterns of the prepared composite had sharp peaks because of their crystalline structure. FTIR analysis indicated that the composites had carbonated calcium phosphate structure. SEM micrographs illustrated amorphous calcium phosphate particles with irregular shapes. With increasing the HA/TCP ratio, Young's modulus and compressive strength of the composites increased from 179 to 453 MPa and from 20 to 38 MPa respectively. The setting time of the samples decreased with increasing the HA/TCP ratio from 22 to 18 minutes.

scholarly journals Characterization of Hybrid Materials Prepared by Sol-Gel Method for Biomedical Implementations. A Critical Review

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1788
Author(s):  
Michelina Catauro ◽  
Stefano Vecchio Ciprioti
Keyword(s):  
Hybrid Materials ◽  
Heart Valves ◽  
Sol Gel ◽  
Synthesis Method ◽  
Biological Properties ◽  
Knee Prostheses ◽  
Bioactive Substances ◽  
Gel Method ◽  
Sol Gel Method

The interaction between tissues and biomaterials (BM) has the purpose of improving and replacing anatomical parts of the human body, avoiding the occurrence of adverse reactions in the host organism. Unfortunately, the early failure of implants cannot be currently avoided, since neither a good mixture of mechanical and chemical characteristics of materials nor their biocompatibility has been yet achieved. Bioactive glasses are recognized to be a fine class of bioactive substances for good repair and replacement. BM interact with living bones through the formation of a hydroxyapatite surface layer that is analogous to bones. Bioglasses’ composition noticeably affects their biological properties, as does the synthesis method, with the best one being the versatile sol-gel technique, which includes the change of scheme from a ‘sol’ fluid into a ‘gel’. This process is widely used to prepare many materials for biomedical implants (e.g., hip and knee prostheses, heart valves, and ceramic, glassy and hybrid materials to serve as carriers for drug release). Nanoparticles prepared by the sol-gel method are interesting systems for biomedical implementations, and particularly useful for cancer therapy. This review provides many examples concerning the synthesis and characterization of the above-mentioned materials either taken from literature and from recently prepared zirconia/polyethylene glycol (PEG) hybrids, and the corresponding results are extensively discussed.

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