scholarly journals Enhancing in vitro biocompatibility and corrosion protection of organic–inorganic hybrid sol–gel films with nanocrystalline hydroxyapatite

2014 ◽  
Vol 2 (24) ◽  
pp. 3886-3896 ◽  
Author(s):  
A. A. El hadad ◽  
V. Barranco ◽  
A. Jiménez-Morales ◽  
E. Peón ◽  
G. J. Hickman ◽  
...  

Application of novel organic–inorganic hybrid sol–gel coatings containing dispersed hydroxyapatite particles improved the biocompatibility and corrosion protection properties of the Ti6Al4V alloy used in medical implants.

2014 ◽  
Vol 2 (45) ◽  
pp. 7955-7963 ◽  
Author(s):  
A. A. El hadad ◽  
V. Barranco ◽  
A. Jiménez-Morales ◽  
G. J. Hickman ◽  
J. C. Galván ◽  
...  

Introduction of phosphorous into hybrid silica sol–gel coatings on Ti6Al4V gives materials demonstrating higher levels of intermolecular condensation and fibrinogen uptake as well as improved in vitro biocompatibility and corrosion protection.


2020 ◽  
Vol 33 ◽  
pp. 1781-1786 ◽  
Author(s):  
Maria P. Nikolova ◽  
Veselina Nikolova ◽  
Veronika L. Ivanova ◽  
Stefan Valkov ◽  
Peter Petrov ◽  
...  

2008 ◽  
Vol 16 (6) ◽  
pp. 3490 ◽  
Author(s):  
Wenxiu Que ◽  
C. Y. Jia ◽  
M. Sun ◽  
Z. Sun ◽  
L. L. Wang ◽  
...  

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Malgorzata Lewandowska-Szumieł ◽  
Janusz Kozakiewicz ◽  
Piotr Mrówka ◽  
Agnieszka Jurkowska ◽  
Edyta Sienkiewicz-Łatka ◽  
...  

AbstractSilicone-urethanes, polymers combining the characteristics of two widely used biomaterials, i.e. polyurethanes and silicones, are highly valued in many applications, including medical implants. To assess properties of these materials in contact with living cells, a set of different silicone-urethane materials, candidates for tissue engineering scaffolds, was synthesized and characterized. Two different oligomeric siloxane diols: Tegomer-2111 (Teg) and KF-6001 (KF), and two different types of diisocyanate, MDI and IPDI, were used in synthesis. Blood platelets adhesion to surfaces of selected materials showed a higher thrombogenicity of material based on Teg. Human fibroblasts were used in in vitro biocompatibility tests. The viability of cells cultured on silicone-urethanes was tested by XTT assay. Teg-based silicone-urethanes showed a significantly higher biocompatibility than those based on KF. Materials based on MDI compared to IPDI were found to be significantly more favoured by cells, not necessarily due to the type of diisocyanate but maybe also because of the necessity of using potentially toxic catalyst which accompanies the use of IPDI. Our studies indicate that silicone-urethanes are potent materials for tissue engineering products development. On the basis of the observations performed in cell culture, Tegomer- 2111 as oligomeric siloxane diol and MDI as diisocyanate are recommended as starting materials for silicone-urethane scaffolds synthesis.


2008 ◽  
Vol 47-50 ◽  
pp. 1319-1322
Author(s):  
Yang Zhao ◽  
Pei Yin ◽  
Zu Yong Wang ◽  
Lei Ren ◽  
Qi Qing Zhang

Novel hybrid biomaterial of gelatin-siloxane nanoparticles (GS NPs), with positive surface potential and lower cytotoxicity, was synthesized through a 2-step sol-gel process. The pDNA-GS NPs complex was formulated with high encapsulation efficiency, and exhibited and efficient transfection in vitro. We thus envision that the GS NPs material could serve as non-viral gene vectors for gene therapy.


2014 ◽  
Vol 26 (7) ◽  
pp. 725-733 ◽  
Author(s):  
D. Duraibabu ◽  
T. Ganeshbabu ◽  
P. Saravanan ◽  
S. Ananda Kumar

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