About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Powder and Ceramic Materials Science
|
Presentation Title |
Fabrication of Hierarchically-porous, Gyroid-structured Hydroxyapatite Scaffolds by a Dual-templating Method |
Author(s) |
Jui-Yuan Ho, Haw-Kai Chang, Cheng-Che Tung, Po-Yu Chen |
On-Site Speaker (Planned) |
Jui-Yuan Ho |
Abstract Scope |
To date, fabricating porous materials with desired porosity, pore sizes, and permeability still remains as a challenge to be overcome in the industry. Inspired by the hierarchical transport systems found in nature, we combined ice-templating and 3D-printed sacrificial templating methods to synthesize scaffolds with hierarchical micro/millimeter channels for high efficiency fluid transportation. The sacrificial template with designed inverse-gyroid structure molded the freeze-casted scaffold into gyroid structure, which was highly ordered and periodic. The resulting symmetrical and interconnected channels created a well-distributed fluid transportation system through the scaffold. Fish scale-derived hydroxyapatite was used as the raw material due to its confirmed removal ability of heavy-metal ions and biocompatibility. The structures were characterized by SEM and μ-CT and compressive mechanical properties were evaluated. The permeability of dual-templating scaffolds was 100 times higher than typical ice-templating scaffolds. The hierarchically porous scaffolds have great potential to be applied in sewage treatment and tissue engineering. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Additive Manufacturing, Biomaterials |