TY - GEN
T1 - The Hardystonite/PA66 Composite for Using as the Intervertebral Fusion Cage
AU - Tavangarian, Fariborz
AU - Sadeghzade, Sorour
AU - Emadi, Rahmatollah
N1 - Publisher Copyright:
© 2020, The Minerals, Metals & Materials Society.
PY - 2020
Y1 - 2020
N2 - The aim of this study was to design and evaluate nano-hardystonite/polyamide 66 composites with close mechanical properties to the trabecular bone to prevent the stress shielding phenomenon for bone tissue engineering applications. This composite can be used as an intervertebral fusion cage to perform spinal fusion between vertebrae in the lumbar spine. The pure nano-hardystonite powder was fabricated by combustion method at 900 °C following by 5 h ball mill. The nano-hardystonite/Polyamide 66 and nano-hydroxyapatite/Polyamide 66 cage were prepared by injection molding method to compare the mechanical and biological properties. In this end, the X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized to characterize the prepared powder and cage samples. Based on the results, the addition of 30% nano-hardystonite improved both mechanical and bioactivity properties. The optimum hardystonite/PA66 samples revealed the compressive strength and elastic modulus of 69.19 ± 0.89 MPa and 2.56 ± 0.5 GPa, respectively, compared to 53.45 ± 1.2 MPa and 3.45 ± 0.3 GPa in hydroxyapatite/PA66 sample, respectively. In addition, observation of the superior apatite formation ability of hardystonite/PA66 compared to hydroxyapatite/PA66 indicated that it can be used as a spinal vertebrae replacement material.
AB - The aim of this study was to design and evaluate nano-hardystonite/polyamide 66 composites with close mechanical properties to the trabecular bone to prevent the stress shielding phenomenon for bone tissue engineering applications. This composite can be used as an intervertebral fusion cage to perform spinal fusion between vertebrae in the lumbar spine. The pure nano-hardystonite powder was fabricated by combustion method at 900 °C following by 5 h ball mill. The nano-hardystonite/Polyamide 66 and nano-hydroxyapatite/Polyamide 66 cage were prepared by injection molding method to compare the mechanical and biological properties. In this end, the X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized to characterize the prepared powder and cage samples. Based on the results, the addition of 30% nano-hardystonite improved both mechanical and bioactivity properties. The optimum hardystonite/PA66 samples revealed the compressive strength and elastic modulus of 69.19 ± 0.89 MPa and 2.56 ± 0.5 GPa, respectively, compared to 53.45 ± 1.2 MPa and 3.45 ± 0.3 GPa in hydroxyapatite/PA66 sample, respectively. In addition, observation of the superior apatite formation ability of hardystonite/PA66 compared to hydroxyapatite/PA66 indicated that it can be used as a spinal vertebrae replacement material.
UR - https://www.scopus.com/pages/publications/85079239276
UR - https://www.scopus.com/inward/citedby.url?scp=85079239276&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-36552-3_16
DO - 10.1007/978-3-030-36552-3_16
M3 - Conference contribution
AN - SCOPUS:85079239276
SN - 9783030365516
T3 - Minerals, Metals and Materials Series
SP - 151
EP - 158
BT - Advances in Powder and Ceramic Materials Science, TMS 2020
A2 - Li, Bowen
A2 - Baker, Shefford P.
A2 - Zhai, Huazhang
A2 - Monteiro, Sergio Neves
A2 - Soman, Rajiv
A2 - Dong, Faqin
A2 - Li, Jinhong
A2 - Wang, Ruigang
PB - Springer
T2 - Symposium on Advances in Powder and Ceramic Material Science held at the 149th Annual Meeting and Exhibition, TMS 2020
Y2 - 23 February 2020 through 27 February 2020
ER -