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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Advances in Biomaterials for 3D Printing of Scaffolds and Tissues
Presentation Title Processing and Properties of 3D Printed Bioabsorbable Polymer-Metal Composites (PLDL/Mg and PLDL/Zn) for Orthopaedic Applications
Author(s) Cillian Thompson, Guillermo Domínguez, Jimena de la Vega, Cristina Pascual-González, Monica Echeverry-Rendón, Carlos González, Javier Llorca
On-Site Speaker (Planned) Javier Llorca
Abstract Scope Filaments of 2.85 mm in diameter of poly-lactic acid reinforced with different weight fractions of µm-sized Mg or Zn particles were obtained by a double extrusion in method in which standard extrusion is followed by a precision extrusion in a filament-makermachine. The filaments had constant diameter, negligible porosity and a homogeneous reinforcement distribution. They were used to manufacture porous scaffolds by fused-filament fabrication. The mechanical properties, degradation rate and cytocompatibility of the 3D printed materials and scaffolds were measured following ISO standards. The influence of the metallic particles on the deformation and fracture mechanisms, the degradation processes in simulated body fluid and the material/cell interactions were analyzed. It was found that all the materials were suitable for orthopaedic applications and that the addition of metallic particles can be used to tailor the degration rate. In addition, it was possible to manufacture porous scaffolds with excellent dimensional accuracy by fused-filament fabrication.
Proceedings Inclusion? Planned: Supplemental Proceedings volume
Keywords Biomaterials, Additive Manufacturing,

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Cell-Laden Bioink Circulation-Assisted Inkjet-Based Bioprinting to Mitigate Cell Sedimentation and Cell Aggregation
Development of Propolis Modified Scaffolds for Tissue Engineering
Effects of Corona Treatment on Cellular Attachment and Morphology on Polydimethylsiloxane Micropillar Substrates
Electrohydrodynamic 3D Printing of Aqueous Solutions
Fabrication of Hierarchically Porous 316L Stainless Steel Scaffolds by Freeze Casting and 3D-printed Sacrificial Templating Techniques
High Speed and High-Resolution 3D Printing of Self-healing and Ion-conductive Hydrogels via µCLIP
Investigation of Cell Sedimentation and Cell Aggregation during 3D Bioprinting
Investigation of Cellular Attachment and Morphology on a 3D-printed Curved Micropillar Substrate
K-4: 3D Printing in Thermosensitive Nanoclay-Pluronic F127 Nanocomposite
Processing and Properties of 3D Printed Bioabsorbable Polymer-Metal Composites (PLDL/Mg and PLDL/Zn) for Orthopaedic Applications
The Influence of Printing Orientation on the Mechanical Properties of 3D Printed Parts by Stereolithography (SLA) Process

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