Coating Electrospun Poly(ε-caprolactone) Fibers with Gelatin and Calcium Phosphate and Their Use as Biomimetic Scaffolds for Bone Tissue Engineering

Langmuir ◽  
2008 ◽  
Vol 24 (24) ◽  
pp. 14145-14150 ◽  
Author(s):  
Xiaoran Li ◽  
Jingwei Xie ◽  
Xiaoyan Yuan ◽  
Younan Xia
2021 ◽  
Vol 12 ◽  
pp. 204173142110056
Author(s):  
Nupur Kohli ◽  
Vaibhav Sharma ◽  
Alodia Orera ◽  
Prasad Sawadkar ◽  
Nazanin Owji ◽  
...  

Due to the limitations of bone autografts, we aimed to develop new composite biomaterials with pro-angiogenic and osteogenic properties to be used as scaffolds in bone tissue engineering applications. We used a porous, cross-linked and slowly biodegradable fibrin/alginate scaffold originally developed in our laboratory for wound healing, throughout which deposits of calcium phosphate (CaP) were evenly incorporated using an established biomimetic method. Material characterisation revealed the porous nature and confirmed the deposition of CaP precursor phases throughout the scaffolds. MC3T3-E1 cells adhered to the scaffolds, proliferated, migrated and differentiated down the osteogenic pathway during the culture period. Chick chorioallantoic membrane (CAM) assay results showed that the scaffolds were pro-angiogenic and biocompatible. The work presented here gave useful insights into the potential of these pro-angiogenic and osteogenic scaffolds for bone tissue engineering and merits further research in a pre-clinical model prior to its clinical translation.


2016 ◽  
Vol 23 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Weizhong Yang ◽  
Yong Yi ◽  
Yuan Ma ◽  
Li Zhang ◽  
Jianwen Gu ◽  
...  

AbstractNano biphasic calcium phosphate (BCP) particles were synthesized using the sol-gel method. As-prepared BCP particles were combined with poly-L-lactide (PLLA) to fabricate nano-BCP/PLLA composite scaffold through a series of processing steps containing solvent self-diffusion, hot-pressing, and particulate leaching. The composite had a suitable porous structure for bone tissue engineering scaffold. In comparison, micro-BCP/PLLA scaffold was studied as well. Nano-BCP particles were distributed homogeneously in the PLLA matrix, and much more tiny crystallites exposed on the surface of the pore wall. Due to the finer inorganic particle distribution in the PLLA phase and the larger area of the bioactive phase exposed in the pore wall surface, nano-BCP/PLLA scaffold had enhanced compressive strength, good bioactivity, and superior cell viability. A nonstoichiometric apatite layer could be rapidly formed on the surface of nano- BCP/PLLA when soaked in simulated body fluid. The MG-63 cell viability of nano-BCP/PLLA scaffold is significantly higher than that of micro-BCP/PLLA scaffold. Therefore, nano-BCP/PLLA composite may be a suitable alternative for bone tissue engineering scaffold.


2007 ◽  
pp. 9-1-9-18
Author(s):  
Paul Spauwen ◽  
John Jansen ◽  
P QuintenRuhé ◽  
Joop Wolke

2018 ◽  
pp. 461-475 ◽  
Author(s):  
Ozan Karaman

The limitation of orthopedic fractures and large bone defects treatments has brought the focus on fabricating bone grafts that could enhance ostegenesis and vascularization in-vitro. Developing biomimetic materials such as mineralized nanofibers that can provide three-dimensional templates of the natural bone extracellular-matrix is one of the most promising alternative for bone regeneration. Understanding the interactions between the structure of the scaffolds and cells and therefore the control cellular pathways are critical for developing functional bone grafts. In order to enhance bone regeneration, the engineered scaffold needs to mimic the characteristics of composite bone ECM. This chapter reviews the fabrication of and fabrication techniques for fabricating biomimetic bone tissue engineering scaffolds. In addition, the chapter covers design criteria for developing the scaffolds and examples of enhanced osteogenic differentiation outcomes by fabricating biomimetic scaffolds.


Author(s):  
Ozan Karaman ◽  
Cenk Celik ◽  
Aylin Sendemir Urkmez

Cranial, maxillofacial, and oral fractures, as well as large bone defects, are currently being treated by auto- and allograft procedures. These techniques have limitations such as immune response, donor-site morbidity, and lack of availability. Therefore, the interest in tissue engineering applications as replacement for bone graft has been growing rapidly. Typical bone tissue engineering models require a cell-supporting scaffold in order to maintain a 3-dimensional substrate mimicking in vivo extracellular matrix for cells to attach, proliferate and function during the formation of bone tissue. Combining the understanding of molecular and structural biology with materials engineering and design will enable new strategies for developing biological tissue constructs with clinical relevance. Self-assembled biomimetic scaffolds are especially suitable as they provide spatial and temporal regulation. Specifically, self-assembling peptides capable of in situ gelation serve as attractive candidates for minimally invasive injectable therapies in bone tissue engineering applications.


2020 ◽  
Vol 6 (5) ◽  
pp. 055004
Author(s):  
Tanawut Rittidach ◽  
Tanatsaparn Tithito ◽  
Panan Suntornsaratoon ◽  
Narattaphol Charoenphandhu ◽  
Jirawan Thongbunchoo ◽  
...  

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