# 246. Future of Bone Repair Starts with a 3D Printer

- Show: [The Next Byte Podcast](https://hardwarepodcasts.com/podcast/the-next-byte-podcast)
- Published: 2026-06-02
- Length: 14m
- Page: https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2026-06-02-246-future-of-bone-repair-starts-with-a-3d-printer
- Listen: https://the-next-byte-wevolver.simplecast.com/episodes/246-future-of-bone-repair-starts-with-a-3d-printer-RVV3xL4o

## Summary

The hosts discuss a breakthrough by researchers from ETH Zurich, Empa, and the University of Freiburg in creating a 3D printable bone scaffold that hardens at room temperature. They explain how this enzyme-driven process using alkaline phosphatase and gelatin solves the trade-off between mechanical strength and porosity, allowing real bone to grow back faster. The team demonstrated that a small 2cm by 2cm section of this synthetic bone could support the weight of an average human, marking a significant step toward custom, accessible medical implants.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2026-06-02-246-future-of-bone-repair-starts-with-a-3d-printer#t=0) Introduction: 3D Printing Bone and Sponsor Read
- [2:49](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2026-06-02-246-future-of-bone-repair-starts-with-a-3d-printer#t=169) The Challenge: Strength vs. Porosity in Bone Implants
- [5:55](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2026-06-02-246-future-of-bone-repair-starts-with-a-3d-printer#t=355) The Solution: Room Temperature Enzyme-Driven Hardening
- [8:44](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2026-06-02-246-future-of-bone-repair-starts-with-a-3d-printer#t=524) Material Composition: Gelatin, Calcium, and Alkaline Phosphatase
- [10:53](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2026-06-02-246-future-of-bone-repair-starts-with-a-3d-printer#t=653) Testing Results: Strength and Future Potential

## Topics

- [Medical & health devices](https://hardwarepodcasts.com/topic/medical-devices)
- [Prototyping & iteration](https://hardwarepodcasts.com/topic/prototyping)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)

## Most relevant to

early-stage companies

## Related episodes from other shows

- [Revolutionizing Healthcare: The Future of Customized Medical Manufacturing with Cambre Kelly](https://hardwarepodcasts.com/podcast/additive-snack/2023-09-19-revolutionizing-healthcare-the-future-of-customized-medical-manufacturing-with-c) (Additive Snack)
- [Step into the Future: Doc Sols’ 3D Printed Revolution in Podiatry](https://hardwarepodcasts.com/podcast/additive-snack/2023-08-29-step-into-the-future-doc-sols-3d-printed-revolution-in-podiatry) (Additive Snack)
- [Ep 305: Caustic Clocks, Practice Bones, and Brick Layers](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-01-24-ep-305-caustic-clocks-practice-bones-and-brick-layers) (Hackaday Podcast)
- [Ep 328: Benchies, Beanies, and Back to the Future](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-07-11-ep-328-benchies-beanies-and-back-to-the-future) (Hackaday Podcast)
- [Personalized Spinal Bracing Made Reality with Additive Manufacturing](https://hardwarepodcasts.com/podcast/additive-snack/2024-04-23-personalized-spinal-bracing-made-reality-with-additive-manufacturing) (Additive Snack)

## Citing this page

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