Structural Biomimetic Scaffold Modifications for Bones
Over the years, biomimetic scaffolds have been commonly used in the process of tissue regeneration for treatment of bone defects. Even though current biomimetic scaffolds are easily accessible, they lack mechanical strength for ideal applications. This research aims to improve on current designs to create new three-dimensional biomimetic scaffolds for bones. Different biomimetic scaffolds were designed and 3D-printed and was tested for mechanical strength conducting a tensile strength test on the scaffolds. The tests show that the scaffold with hexagonal pores proved to be the most effective scaffold due to its geometrical properties which allows it to withstand more pressure. This was concluded according to the spread of pressure along the scaffold that is dependent on the amount of pressure exerted, and the identification of first fracture which affects the line of breakage across the entire scaffold. This research is able to better help extend the field of tissue engineering and the applicability of 3D biomimetic bone scaffolds for clinical usage.
KeywordsTissue regeneration Bone defects Mechanical strength Biomimetic 3D scaffolds
Special thanks to Mr Teo Tee Wei from National Junior College for his patient guidance throughout the research process of this project. It is also greatly appreciated with gratitude towards National Junior College for the provision of the opportunity to engage in scientific research.
- 1.Kheirallah, M., & Almeshaly, H. (2016). Bone graft substitutes for bone defect regeneration. A collective review. International Journal of Dentistry and Oral Science, 3(5), 247–257.Google Scholar
- 4.Torkzadeh, R. A. (2010). Accidents happen but who’s going to pay the bills?: A consumers guide to the california personal injury and wrongful death system. Cork: BookBaby.Google Scholar
- 5.Bhatnagar, R. S., & Li, S. (2004, September). Biomimetic scaffolds for tissue engineering. In: 26th Annual International Conference of the IEEE (Vol. 2, pp. 5021–5023). IEMBS’04. Engineering in Medicine and Biology Society, 2004. IEEE.Google Scholar
- 7.3D Printing Systems Australia. (2017). Retrieved January 31, 2017, from http://3dprintingsystems.com/products/filament/.
- 9.Ju, J., Summers, J. D., Ziegert, J., & Fadel, G. (2010, January). Compliant hexagonal meso-structures having both high shear strength and high shear strain. In: Proceedings of the ASME International Design Engineering Technical Conferences, Montreal, Quebec, Canada.Google Scholar
- 10.Egan, P., Ferguson, S., & Shea, K. (2017). Design of hierarchical 3D printed scaffolds considering mechanical and biological factors for bone tissue engineering. Journal of Mechanical Design, 139. https://doi.org/10.1115/1.4036396.