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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Ceramic Materials and Processing
Presentation Title Hierarchically Porous Hydroxyapatite/Silk Fibroin Scaffolds Fabricated via Dual-Templating and TPP-Assisted Infiltration
Author(s) Yun-Chun Yang, Haw-Kai Chang, Kuan-Cheng Lai, Yen-Fang Song, Gung-Chian Yin, Po-Yu Chen
On-Site Speaker (Planned) Yun-Chun Yang
Abstract Scope Bone defect repair remains a common yet challenging clinical issue. An ideal scaffold should provide hierarchical porosity, biocompatibility, and mechanical support. This study proposes a dual-templating strategy combining freeze-casting and 3D-printed sacrificial templates to fabricate hydroxyapatite (HA) scaffolds with hierarchical porosity. Lamellar micropores (~17 μm) were formed by controlling cooling rate, while interconnected macropores (186-1950 μm) were introduced via gyroid and cylinder templates. Micropores below 50 μm can increase surface area for protein adsorption and promote osteoinductive signaling, whereas macropores between 300–500 μm are known to facilitate angiogenesis and cellular infiltration. Silk fibroin (SF) was incorporated using a sodium tripolyphosphate (TPP)-assisted β-sheet assembly, enhancing interfacial bonding. The composite showed an 8.83-66.41% increase in compressive strength and 12.23-86.36% in energy absorption. Human mesenchymal stem cells (hMSCs) will be used for in vitro evaluation, including DNA quantification, qPCR analysis, live/dead staining, and SEM to assess cell viability, differentiation, and morphology.
Proceedings Inclusion? Planned:
Keywords Ceramics, Biomaterials, Mechanical Properties

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