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Related Experiment Video

Updated: Apr 28, 2026

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Biomedical CoCrMo/HA Composite Prepared by 3D Printing.

Hao Wang1,2, Shaohua Wang3, Jinzhi Ren3

  • 1Co-Creation Institute for Advanced Materials, Shimane University, Matsue 6908504, Shimane, Japan.

ACS Biomaterials Science & Engineering
|April 27, 2026
PubMed
Summary

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A novel cobalt-chromium-molybdenum (CoCrMo)/hydroxyapatite (HA) composite, created using 3D printing, shows superior biocompatibility and mechanical strength for bone repair applications.

Area of Science:

  • Biomaterials Engineering
  • Materials Science
  • Orthopedic Research

Background:

  • Traditional metallic implants (e.g., Ti, CoCrMo) have limitations in biocompatibility and density, hindering bone repair.
  • Developing advanced biomaterials is crucial for improving orthopedic treatments and patient outcomes.

Purpose of the Study:

  • To synthesize and evaluate a novel CoCrMo/hydroxyapatite (HA) composite for biomedical applications.
  • To assess the biocompatibility, hemocompatibility, and mechanical properties of the CoCrMo/HA composite.
  • To determine the suitability of this composite for human bone repair.

Main Methods:

  • Three-dimensional (3D) printing technology was employed for composite synthesis.
  • Biocompatibility and blood compatibility were systematically investigated.
Keywords:
3D printing technologybiomaterialscompositescompression testhydroxyapatite

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  • Compressive strength testing was performed to evaluate mechanical properties.

    • Main Results:

    • The CoCrMo/HA composite demonstrated good biocompatibility and blood compatibility, outperforming existing medical materials.
    • Enhanced biocompatibility and hemocompatibility were observed over extended durations.
    • The composite achieved a compressive strength of 724.4 MPa, meeting requirements for bone repair.

    Conclusions:

    • The 3D-printed CoCrMo/HA composite offers a promising alternative for bone defect treatment.
    • This material exhibits excellent biocompatibility and mechanical integrity for orthopedic applications.
    • The study provides a valuable reference for developing next-generation biomedical composites.