| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
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Advances in Biomaterials for Bioink Formulation and 3D Printing of Scaffolds
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| Presentation Title |
3D printing of mechanically reinforced hydrogels based on ketoenamine-crosslinked polyrotaxane network |
| Author(s) |
Kundo Park, Grace Hu, Zeqing Jin, Dan Zheng, Chenfeng Ke, Grace Gu |
| On-Site Speaker (Planned) |
Kundo Park |
| Abstract Scope |
The ability to 3D print hydrogels into complex shapes is essential in bioprinting because hydrogels serve as flexible and biocompatible structures that can support cells, thereby mimicking natural tissues. Ketoenamine crosslinked polyrotaxane hydrogel (kPH) is a recently synthesized hydrogel that features high stretchability and high toughness resulting from its unique molecular interlocked architecture. However, 3D printing kPH into complex shapes has faced several challenges, including difficulties in maintaining structural integrity during the printing process and significant distortion during the dehydration of printed product. In this research, we propose a 3D printing framework for kPH by characterizing key process parameters for the synthesis and printing of kPH and determining the values that enable high dimensional accuracy and mechanical properties. Results show that by precisely tuning the key process parameters such as mixture concentration, solidification time, nozzle pressure, and printing speed, it is possible to form kPH into complex geometries.
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| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Polymers |