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Meta-biomaterials.

Amir A Zadpoor1

  • 1Additive Manufacturing Laboratory, Department of Biomechanical Engineering, Delft University of Technology (TU Delft), Mekelweg 2, Delft 2628 CD, The Netherlands. a.a.zadpoor@tudelft.nl.

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|October 19, 2019
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Summary
This summary is machine-generated.

Meta-biomaterials leverage unique geometrical designs across multiple scales to enhance orthopedic implant performance. This review explores 3D printing applications for improved bone regeneration and reduced infection risk in implants.

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Area of Science:

  • Biomaterials Engineering
  • Additive Manufacturing
  • Orthopedic Implants

Background:

  • Meta-biomaterials are engineered materials with novel properties derived from intricate geometrical designs at macro-, micro-, and nanoscales.
  • Current applications focus on orthopedic biomaterials to improve bone tissue regeneration and minimize implant-associated infections.
  • Advanced additive manufacturing, particularly 3D printing, is crucial for fabricating these complex meta-biomaterials.

Purpose of the Study:

  • To review how geometrical design at various length scales, combined with 3D printing, creates meta-biomaterials.
  • To explore applications in orthopedics, including patient-specific, deployable, and shape-morphing implants.
  • To discuss nanoscale surface designs for enhanced osteogenesis and antibacterial properties.

Main Methods:

  • Review of literature on geometrical design strategies for meta-biomaterials.
  • Analysis of additive manufacturing techniques for fabricating meta-biomaterials.
  • Examination of macro-, micro-, and nanoscale design principles and their applications.

Main Results:

  • Macroscale designs include patient-specific, deployable, and shape-morphing implants.
  • Microscale designs feature multi-physics and auxetic meta-biomaterials for enhanced implant longevity.
  • Nanoscale surface patterns can simultaneously promote osteogenic differentiation and exhibit antibacterial effects.

Conclusions:

  • Meta-biomaterials offer superior performance in orthopedic applications due to advanced geometrical designs.
  • Origami-based designs and self-folding mechanisms present novel fabrication routes.
  • Further research is needed to fully realize the potential of meta-biomaterials in regenerative medicine.