Experimental study demonstrates enhanced mechanical strength, degradation, and cytocompatibility in 3D-printed PLA/MgO nanowire composites, highlighting their potential for biomedical implants.
Polylactic acid (PLA) and its composites have gained significant attention for the fabrication of complex biomedical parts through three-dimensional (3D) printing. This study summarizes the 3D printing compatibility of PLA/MgO nanowire composites through fused deposition modeling (FDM). The selected PLA/MgO nanowire composition was printable under the tested condition. PLA/MgO nanowire composites exhibit 15% improved ultimate tensile stress and 14% higher elastic modulus as compared to pure PLA. In addition, the maximum load carrying ability of PLA/MgO nanowire composites increased up to 34.78% with the 155% increase in break strain and 250% energy absorption. PLA/MgO nanowire composites exhibit increased degradation probably due to the addition of MgO nanowires. The cytocompatibility results show that PLA/MgO nanowire specimens show no toxicity.
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Hussain et al. (2026) studied this question.
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