Poly (d/l) lactide-polycaprolactone/bioactive glass nanocomposites: assessments of in vitro bioactivity and biodegradability
Keywords:In-vitro test, PDLLA/PCL, Bioactive glass nanoparticles, Bioactivity and Biodegradation
The in vitro assessments suggested the essential features for the bio screws applications. The effects of bioactive glass nanoparticles (BG) during in vitro studies of the poly (D/L) lactide (PDLLA)/polycaprolactone (PCL)/BG nanocomposites (PPB) were assessed. The PDLLA/PCL (PP) blends were chosen as control groups. Apatite formations capabilities, weight and pH variations, alkaline phosphatase activity (ALP), and MTT assay were assigned during different immersion times up to 6 months. The XRD and SEM results revealed the superior apatite formation of PPB in simulated body fluids (SBF) compared to PP. The weight loss and pH variation results illustrated the highest values related to PP. Moreover, the MG-63 cells cultures determined the better cell viability of the PPB compared to the PP blends. Although, there are no statistically significant differences between the two groups. In addition, similar trends are shown for the ALP results where these amounts after 2 and 3 weeks incubation are considerable for PPB in comparison to PP. However, there are also no statistically significant differences between the two groups. Overall, the in vitro bioactivity and biodegradability confirmed that the PPB implants can be promised as a proper candidate for anterior cruciate ligament reconstruction screws.
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