In Vitro Comparison of 3D Printed Polylactic Acid/Hydroxyapatite and Polylactic Acid/Bioglass Composite Scaffolds: Insights into Materials for Bone Regeneration

Journal of the Mechanical Behavior of Biomedical Materials 2020
M. Alksne, M. Kalvaityte, E. Simoliunas, I. Rinkunaite, I. Gendviliene, Jānis Ločs, V. Rutkunas, V. Bukelskiene

3D printing of polylactic acid (PLA) and hydroxyapatite (HA) or bioglass (BG) bioceramics composites is the most promising technique for artificial bone construction. However, HA and BG have different chemical composition as well as different bone regeneration inducing mechanisms. Thus, it is important to compare differentiation processes induced by 3D printed PLA + HA and PLA + BG scaffolds in order to evaluate the strongest osteoconductive and osteoinductive properties possessing bioceramics. In this study, we analysed porous PLA + HA (10%) and PLA + BG (10%) composites' effect on rat's dental pulp stem cells fate in vitro. Obtained results indicated, that PLA + BG scaffolds lead to weaker cell adhesion and proliferation than PLA + HA. Nevertheless, osteoinductive and other biofriendly properties were more pronounced by PLA + BG composites. Overall, the results showed a strong advantage of bioceramic BG against HA, thus, 3D printed PLA + BG composite scaffolds could be a perspective component for patient-specific, cheaper and faster artificial bone tissue production.

Atslēgas vārdi
3D printing, Bioglass, Bone regeneration, Hydroxyapatite, Polylactic acid
DOI
10.1016/j.jmbbm.2020.103641
Hipersaite
https://www.sciencedirect.com/science/article/abs/pii/S1751616119316613?via%3Dihub

Alksne, M., Kalvaityte, M., Simoliunas, E., Rinkunaite, I., Gendviliene, I., Ločs, J., Rutkunas, V., Bukelskiene, V. In Vitro Comparison of 3D Printed Polylactic Acid/Hydroxyapatite and Polylactic Acid/Bioglass Composite Scaffolds: Insights into Materials for Bone Regeneration. Journal of the Mechanical Behavior of Biomedical Materials, 2020, Vol. 104, Article number 103641. ISSN 1751-6161. Pieejams: doi:10.1016/j.jmbbm.2020.103641

Publikācijas valoda
English (en)