Bioactivity and hemocompatibility of sol–gel bioactive glass synthesized under different catalytic conditions

2020 ◽  
Vol 44 (48) ◽  
pp. 21026-21037
Author(s):  
D. Durgalakshmi ◽  
R. Ajay Rakkesh ◽  
P. Aruna ◽  
Singaravelu Ganesan ◽  
S. Balakumar

In bioactive glass synthesis by sol–gel method, HCl catalyst induces biocompatible wollastonite crystallization and supports higher apatite formation.

2005 ◽  
Vol 16 (11) ◽  
pp. 1045-1050 ◽  
Author(s):  
M. M. Pereira ◽  
J. R. Jones ◽  
R. L. Orefice ◽  
L. L. Hench

2015 ◽  
Vol 1107 ◽  
pp. 397-402
Author(s):  
H.J.M. Ridzwan ◽  
N.H. Jamil ◽  
S.A. Syamsyir ◽  
W.A.W. Razali

The bioactive glasses of SiO2-CaO-P2O5-SrO system have been prepared by a quick alkali mediated sol-gel method. The prepared bioactive glass of 1, 3, 5 wt% of SrO (coded: SR1, SR3, SR5, respectively) were characterized by SEM, XRD and FTIR. XRD pattern of all glasses calcined at 700°C in air confirmed that the calcined bioactive glass generally existed in amorphous state. The samples were immersed in simulated body fluid (SBF) to investigate the presence of hydroxyapatite (HA). All bioactive glass samples can induce the formation of hydroxyapatite (HA) as verified by SEM and XRD.


RSC Advances ◽  
2014 ◽  
Vol 4 (43) ◽  
pp. 22678-22687 ◽  
Author(s):  
Qing Hu ◽  
Yuli Li ◽  
Guohou Miao ◽  
Naru Zhao ◽  
Xiaofeng Chen

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


2013 ◽  
Vol 33 (7) ◽  
pp. 3795-3801 ◽  
Author(s):  
Humberto Palza ◽  
Blanca Escobar ◽  
Julian Bejarano ◽  
Denisse Bravo ◽  
Mario Diaz-Dosque ◽  
...  

2020 ◽  
Vol 1010 ◽  
pp. 626-631
Author(s):  
Sharifah Aishah Syed Salim ◽  
Hasmaliza M. Mohamad ◽  
Siti Noor Fazliah Mohd Noor

Bioactive glasses (BG) were applied in bone and dental applications as well as in tissue engineering. In this studies, a new bioglass 50S8P (50% SiO2, 22% CaO, 20% Na2O and 8% P2O5) with different aging time (3, 7, 10 and 15 days) was prepared by sol-gel method. These synthesized glasses were analyzed using X- ray powder diffraction (XRD), Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The bioactivity of all BG is evaluated by incubating the BG powder in Hank's Balanced Salt Solution (HBSS) for 7, 14 and 21 days. Thermal analyses indicated the compositions can be stabilized at 700°C. XRD confirmed the primary crystalline phase was Na4Ca4Si6O18. Formation of silica network is established with the existence of functional group Si-O-Si (tetrahedral), confirmed with FTIR analyses. In vitro test confirm the apatite formation on the BG surface with characteristic of carbonate group (C-O) and P-O band noticed from FTIR and morphology of apatite formation on BG surface was observe using SEM


Crystals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 283
Author(s):  
Ta Anh Tuan ◽  
Elena V. Guseva ◽  
Nguyen Anh Tien ◽  
Ho Tan Dat ◽  
Bui Xuan Vuong

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.


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