In vitro degradation and apatite formation of magnesium and zinc incorporated calcium silicate prepared by sol-gel method

2020 ◽  
pp. 1-10
Author(s):  
J. Ma ◽  
C. Z. Wang ◽  
B. X. Huang ◽  
X. C. Zhao ◽  
C. Z. Chen ◽  
...  
2011 ◽  
Vol 257 (21) ◽  
pp. 8772-8777 ◽  
Author(s):  
Junhua Hu ◽  
Caili Zhang ◽  
Baohong Cui ◽  
Kuifeng Bai ◽  
Shaokang Guan ◽  
...  

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


2021 ◽  
Vol 3 (7) ◽  
Author(s):  
Alexandre Pancotti ◽  
Dener Pereira Santos ◽  
Dielly Oliveira Morais ◽  
Mauro Vinícius de Barros Souza ◽  
Débora R. Lima ◽  
...  

AbstractIn this study, we report the synthesis and characterization of NiFe2O4 and CoFe2O4 nanoparticles (NPs) which are widely used in the biomedical area. There is still limited knowledge how the properties of these materials are influenced by different chemical routes. In this work, we investigated the effect of heat treatment over cytotoxicity of cobalt and niquel ferrites NPs synthesized by sol-gel method. Then the samples were studied using transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM), Fourier Transform Infrared Spectroscopy Analysis (FTIR), and X-ray fluorescence (XRF). The average crystallite sizes of the particles were found to be in the range of 20–35 nm. The hemocompatibility (erythrocytes and leukocytes) was checked. Cytotoxicity results were similar to those of the control test sample, therefore suggesting hemocompatibility of the tested materials.


RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45840-45849 ◽  
Author(s):  
Tian Tian ◽  
Chengtie Wu ◽  
Jiang Chang

Cuprorivaite firstly synthesized by sol–gel method with angiogenic and antibacterial activities for wound healing application.


2007 ◽  
Vol 330-332 ◽  
pp. 777-780 ◽  
Author(s):  
Fang Fang Wang ◽  
Yun Mao Liao ◽  
Min Wang ◽  
Ping Gong ◽  
Xiao Yu Li ◽  
...  

In this study, an exclusive sodium titanate (Na2Ti6O13) coating on titanium was fabricated by sol-gel method and evaluated in vitro. The coating was characterized by SEM and XRD. The bioactivity of the Na2Ti6O13 coating was evaluated by the biomimetic growth of apatite on its surface after soaked in an acellular simulated body fluid (SBF) for a period of time. In vitro osteoblasts culture was carried out to determine cytocompatibility by the measurement of the proliferation and alkaline phosphatase (ALP) activity of the cells. XRD patterns showed that Na2Ti6O13 was well crystallized when the coating was heated at 800°C. SEM observation exhibited that the Na2Ti6O13 coated titanium had a homogeneous surface without any cracks. After immersion in SBF, the apatite layer can be formed on the coating. The cells culture showed that the osteoblasts grew well on the Na2Ti6O13 coated titanium. It can be concluded that Na2Ti6O13 coating on titanium obtained by sol-gel method is bioactive.


Author(s):  
Fang Fang Wang ◽  
Yun Mao Liao ◽  
Min Wang ◽  
Ping Gong ◽  
Xiao Yu Li ◽  
...  

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