In vitro and in vivo studies of three dimensional porous composites of biphasic calcium phosphate/poly ɛ-caprolactone: Effect of bio-functionalization for bone tissue engineering

2014 ◽  
Vol 301 ◽  
pp. 307-314 ◽  
Author(s):  
Kyung-A. Kwak ◽  
Md. Anirban Jyoti ◽  
Ho-Yeon Song
Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3825
Author(s):  
Mauro Petretta ◽  
Alessandro Gambardella ◽  
Giovanna Desando ◽  
Carola Cavallo ◽  
Isabella Bartolotti ◽  
...  

Multifunctional and resistant 3D structures represent a great promise and a great challenge in bone tissue engineering. This study addresses this problem by employing polycaprolactone (PCL)-based scaffolds added with hydroxyapatite (HAp) and superparamagnetic iron oxide nanoparticles (SPION), able to drive on demand the necessary cells and other bioagents for a high healing efficiency. PCL-HAp-SPION scaffolds with different concentrations of the superparamagnetic component were developed through the 3D-printing technology and the specific topographical features were detected by Atomic Force and Magnetic Force Microscopy (AFM-MFM). AFM-MFM measurements confirmed a homogenous distribution of HAp and SPION throughout the surface. The magnetically assisted seeding of cells in the scaffold resulted most efficient for the 1% SPION concentration, providing good cell entrapment and adhesion rates. Mesenchymal Stromal Cells (MSCs) seeded onto PCL-HAp-1% SPION showed a good cell proliferation and intrinsic osteogenic potential, indicating no toxic effects of the employed scaffold materials. The performed characterizations and the collected set of data point on the inherent osteogenic potential of the newly developed PCL-HAp-1% SPION scaffolds, endorsing them towards next steps of in vitro and in vivo studies and validations.


RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 54100-54110 ◽  
Author(s):  
Li Tao ◽  
Liu Zhonglong ◽  
Xiao Ming ◽  
Yang Zezheng ◽  
Liu Zhiyuan ◽  
...  

In the present study, we fabricated a biocomposite scaffold composed of carboxymethyl chitosan (CMC), gelatin and LAPONITE® (Lap) nanoparticles via freeze-drying and investigated its potential use in bone tissue engineering.


Author(s):  
Eamon J. Sheehy ◽  
Tatiana Vinardell ◽  
Conor T. Buckley ◽  
Daniel J. Kelly

Tissue engineering applications aim to replace or regenerate damaged tissues through a combination of cells, three-dimensional scaffolds, and signaling molecules [1]. The endochondral approach to bone tissue engineering [2], which involves remodeling of an intermittent hypertrophic cartilaginous template, may be superior to the traditional intramembranous approach. Naturally derived hydrogels have been used extensively in tissue engineering applications [3]. Mesenchymal stem cell (MSC) seeded hydrogels may be a particularly powerful tool in scaling-up engineered endochondral bone grafts as the low oxygen conditions that develop within large constructs enhance in vitro chondrogenic differentiation and functional development [4]. A key requirement however, is that the hydrogel must allow for remodeling of the engineered hypertrophic cartilage into bone and also facilitate vascularization of the graft. The first objective of this study was to compare the capacity of different naturally derived hydrogels (alginate, chitosan, and fibrin) to generate in vivo endochondral bone. The secondary objective was to investigate the possibility of engineering a ‘scaled-up’ anatomically accurate distal phalange as a paradigm for whole bone tissue engineering.


2018 ◽  
Vol 47 (3) ◽  
pp. 902-912 ◽  
Author(s):  
Agustina Berenice Lino ◽  
Antonio Desmond McCarthy ◽  
Juan Manuel Fernández

Biologicals ◽  
2018 ◽  
Vol 53 ◽  
pp. 51-62 ◽  
Author(s):  
Hossein Eslami ◽  
Hamidreza Azimi Lisar ◽  
Tahereh Sadat Jafarzadeh Kashi ◽  
Mohammadreza Tahriri ◽  
Mojtaba Ansari ◽  
...  

2015 ◽  
Vol 41 (1) ◽  
pp. 1725-1734 ◽  
Author(s):  
B. Santhosh Kumar ◽  
T. Muthukumar ◽  
R. Deepachitra ◽  
R.K. Charumathy ◽  
T. Hemalatha ◽  
...  

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