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Research Article

Fabrication and in-vitro evaluation of copper doped bioactive glass/polymer composite scaffolds for bone tissue engineering

Ahsen Ünal, Işıl Özer, Melek Erol Taygun, Sadriye Küçükbayrak

Department of Chemical Engineering, Chemical and Metallurgical Engineering Faculty, Istanbul Technical University, Turkey                                                                                                                       

Keywords

Abstract




Composite; 

Scaffold;    

Bioactive glass; 

Therapeutic ion;

Bone tissue engineering


Composites developed by combining bioactive glasses and biopolymers are attractive materials for use in bone tissue engineering scaffolds due to their bioactivity, biocompatibility, osteoconductivity and mechanical properties. From this point of view, in this study, three-dimensional polymer/bioactive composite scaffolds were fabricated by using polymer foam replication method. To be able to achieve this goal, in the first stage new bioactive glass composition in the system SiO2-CaO-Na2O-P2O5 were developed with the incorporation of copper which have antibacterial and angiogenic properties. Scaffolds that mimic the structure of the foams were obtained after the heat treatment process. Then, the scaffolds were coated with gelatine at different percentages (1 and 3 weight%) in order to improve mechanical properties of the scaffolds. Microstructural, physical, chemical and mechanical properties of the composite scaffolds were investigated by using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), compressive strength test and porosity measurements. Furthermore, bioactivity and biodegradability behavior of the samples were determined by in vitro simulated body fluid (SBF) studies. The results showed that all scaffolds favored precipitation of calcium phosphate layer when they were soaked in SBF; they can also deliver controlled doses of copper toward the SBF medium. It was concluded that scaffolds coated with gelatine may be promising candidates for bone tissue engineering applications due to their porosity, bioactivity and appropriate biodegradation rate.

© 2019 MIM Research Group. All rights reserved.

LATEST News

20/08/2020 Collaboration for IMSTEC 2020: Editorial Board of our journal and Organizing Committee of the 5. International Conference on Material Science and Technology (IMSTEC 2020) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.  


21/02/2020 Collaboration for SET 2020: Editorial Board of our journal and Organizing Committee of the 19th International Conference on Sustainable Energy Technologies (SET 2020) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


25/12/2019 Most Cited Paper Award: The paper authored by Manoj Sahni and Sanjeev Sharma entitled as “Elastic-plastic deformation of a thin rotating solid disk of exponentially varying density" is awarded the 2019 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM).

25/12/2019 Best Paper Award: The paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 2019 Best Paper Award of Research on Engineering Structures and Materials (RESM).


13/11/2019 Data articles as a new type of submision: Editorial Board of our journal have decided to accept a new type of submission: data articles. The focus of these papers is only on data and how it is collected but not on its interpretation and drawn conclusions. For more see News section.


(More details of the news may be given in the News section)


For more see News...

LATEST AWARDS


2019 Most Cited Paper Award:

The paper authored by Manoj Sahni and Sanjeev Sharma entitled as “Elastic-plastic deformation of a thin rotating solid disk of exponentially varying density" is awarded the


2019 Best Paper Award:

The paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 


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Last Update:

28.09.2020

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