scholarly journals The bioactivity evaluation of bioactive glass coated titanium surface with simulated body fluid

2006 ◽  
Vol 18 (1/2) ◽  
pp. 43-45
Author(s):  
Takao KAWAI
Keyword(s):  
Simulated Body Fluid ◽  
Bioactive Glass ◽  
Body Fluid ◽  
Titanium Surface

Effect of Electrical Polarization on the Behavior of Bioactive Glass Containing MgO and B2O3 in SBF

2006 ◽  
Vol 309-311 ◽  
pp. 333-336
Author(s):  
Emiko Amaoka ◽  
Erik Vedel ◽  
Satoshi Nakamura ◽  
Yusuke Moriyoshi ◽  
Jukka I. Salonen ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Simulated Body Fluid ◽  
Bioactive Glass ◽  
Body Fluid ◽  
Charged Surface ◽  
Depolarization Current ◽  
Electrical Polarization ◽  
Thermally Stimulated Depolarization Current ◽  
Thermally Stimulated Depolarization ◽  
Calcium Phosphate Precipitation

We investigated the electrical polarizability of MgO and B2O3 containing bioactive glass (MBG). The MBG material with good manufacturing properties but low bioactivity was electrically polarized at a high dc field. The electrical polarizability of MBG was evaluated by thermally stimulated depolarization current (TSDC) measurements and immersion in simulated body fluid (SBF). The early precipitation of calcium phosphate on the negatively charged surface of the treated MBG demonstrated the increased bioactivity of the material and confirmed its polarizability. It is suggested that the electrical interactions between the polarized MBG and ions in SBF promoted the formation of the calcium phosphate precipitation. Accordingly, the increased bioactivity of the MBG in SBF is suggested to demonstrate the conversion of MBG into electrovector ceramics by the polarization treatment.

scholarly journals Hierarchical Structures and Shaped Particles of Bioactive Glass and ItsIn VitroBioactivity

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
U. Boonyang ◽  
F. Li ◽  
A. Stein
Keyword(s):  
Body Temperature ◽  
Simulated Body Fluid ◽  
Bioactive Glass ◽  
Body Fluid ◽  
Colloidal Crystals ◽  
Hierarchical Structures ◽  
The Other ◽  
Bioactive Glasses ◽  
Ordered Macroporous

In this study, bioactive glass particles with controllable structure and porosity were prepared using dual-templating methods. Block copolymers used as one template component produced mesopores in the calcined samples. Polymer colloidal crystals as the other template component yielded either three-dimensionally ordered macroporous (3DOM) products or shaped bioactive glass nanoparticles. Thein vitrobioactivity of these bioactive glasses was studied by soaking the samples in simulated body fluid (SBF) at body temperature (37°C) for varying lengths of time and monitoring the formation of bone-like apatite on the surface of the bioactive glass. A considerable bioactivity was found that all of bioactive glass samples have the ability to induce the formation of an apatite layer on its surface when in contact with SBF. The development of bone-like apatite is faster for 3DOM bioactive glasses than for nanoparticles.

Crystallization processes at the surface of polylactic acid-bioactive glass composites during immersion in simulated body fluid

2011 ◽  
Vol 99B (2) ◽  
pp. 412-419 ◽  
Author(s):  
Nathalie Ginsac ◽  
Jean-Marc Chenal ◽  
Sylvain Meille ◽  
Elodie Pacard ◽  
Rachid Zenati ◽  
...  
Keyword(s):  
Simulated Body Fluid ◽  
Bioactive Glass ◽  
Polylactic Acid ◽  
Body Fluid ◽  
Glass Composites

scholarly journals Preparation of hollow bioactive glass nanofibers by a facile electrospinning method

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Botao Song ◽  
Liang Wu ◽  
Chengtie Wu ◽  
Jiang Chang
Keyword(s):  
Drug Delivery ◽  
Fourier Transform ◽  
Simulated Body Fluid ◽  
Bioactive Glass ◽  
Bone Regeneration ◽  
Body Fluid ◽  
Hollow Structure ◽  
Hollow Interior ◽  
Electrospinning Method ◽  
The Fourier Transform

AbstractIn this communication, hollow bioactive glass (BG) nanofibers were fabricated via a single-nozzle electrospinning method. The morphology of the prepared hollow BG nanofibers was observed by SEM and TEM, and the results showed that BG nanofibers had a continuous hollow interior. The hollow BG nanofibers were incubated in simulated body fluid (SBF) to investigate their apatitemineralization ability, and the result showed that after incubation for 6 h a flower-like apatite was observed on the surface of hollowBGnanofibers, and the Fourier transform infrared (FTIR) result further confirmed the formation of apatite. The results suggested that hollow BG nanofibers could be used for drug delivery and bone regeneration applications due to their unique hollow structure and bioactivity.

Corrosion study of biodegradable magnesium based 1393 bioactive glass in simulated body fluid

2019 ◽  
Vol 45 (14) ◽  
pp. 16893-16903 ◽  
Author(s):  
Pooja Rai ◽  
Amrendra Rai ◽  
Vijay Kumar ◽  
R.K. Chaturvedi ◽  
Vinay Kumar Singh
Keyword(s):  
Simulated Body Fluid ◽  
Bioactive Glass ◽  
Body Fluid ◽  
Corrosion Study ◽  
Biodegradable Magnesium

Corrosion Protection of Nano-biphasic Calcium Phosphate Coating on Titanium Substrate

2020 ◽  
Vol 16 (5) ◽  
pp. 779-792
Author(s):  
Ahlam M. Fathi ◽  
Howida S. Mandour ◽  
Hanaa K. Abd El-Hamid
Keyword(s):  
Calcium Phosphate ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Biphasic Calcium Phosphate ◽  
Titanium Surface ◽  
Electrochemical Impedance ◽  
Calcium Phosphates ◽  
Diffusion Method ◽  
Calcium Phosphate Coating ◽  
Chemical Compositions

Background: Increasing the bioactivity of metallic implants is necessary for biomaterial applications where hydroxyapatite (HA) is used as a surface coating. In industry, HA is currently coated by plasma spraying, but this technique has a high cost and produces coating with short-term stability. Objectives: In the present study, electrophoretic deposition (EPD) was used to deposit nano-biphasic calcium phosphate compound (β-tri-calcium phosphate (β-TCP) /hydroxyapatite (HA)) bio-ceramics on the titanium surface. The microstructural, chemical compositions and bioactivity of the β- TCP/HA coatings were studied in a simulated body fluid solution (SBF). Methods: Scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectroscopy (EDX) and Fourier transform infrared spectroscopy (FTIR) were used. Additionally, the antibacterial effect was studied by the agar diffusion method. The corrosion behavior of the β-TCP/HA coating on titanium surface (Ti) in the SBF solution at 37oC was investigated by means of electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization tests. Results: The Ti surface modification increased its biocompatibility and corrosion resistance in the simulated body fluid. The antibacterial inhibition activity of the β-TCP/HA bio-ceramic was enhanced by electroless silver deposition. The enhanced properties could be attributed to the use of nano-sized biphasic calcium phosphates in a low-temperature EPD process. Conclusions: The β-TCP/HA and β-TCP/HA/Ag coatings well protect Ti from the corrosion in SBF and endow Ti with biocompatibility. The β-4-TCP/HA/Ag/Ti substrate shows good antibacterial activity.

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