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Related Experiment Video

Updated: Dec 25, 2025

Ceramic Omnidirectional Bioprinting in Cell-Laden Suspensions for the Generation of Bone Analogs
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Laser-Assisted Bioprinting for Bone Repair.

Davit Hakobyan1,2, Olivia Kerouredan1,2,3, Murielle Remy1,2

  • 1Tissue Bioengineering, University of Bordeaux, Bordeaux, France.

Methods in Molecular Biology (Clifton, N.J.)
|March 25, 2020
PubMed
Summary

Laser-assisted bioprinting (LAB) precisely prints mesenchymal stromal cells with collagen and nanohydroxyapatite. This novel approach promotes bone regeneration in mouse calvaria defects, offering a promising bone substitute.

Keywords:
Bone regenerationLaser-assisted bioprintingMesenchymal stromal cellsRegenerative medicine

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Area of Science:

  • Biotechnology
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Bioprinting offers innovative solutions for tissue engineering challenges.
  • Laser-assisted bioprinting (LAB) provides high resolution and precision for cell deposition.
  • Developing effective bone substitutes is crucial for treating skeletal defects.

Purpose of the Study:

  • To describe the protocol for laser-assisted bioprinting (LAB).
  • To demonstrate the in situ application of LAB for bone regeneration.
  • To evaluate the efficacy of LAB-printed mesenchymal stromal cells, collagen, and nanohydroxyapatite in a mouse calvaria defect model.

Main Methods:

  • Detailed protocol for laser-assisted bioprinting (LAB) was established.
  • Mesenchymal stromal cells were co-printed with collagen and nanohydroxyapatite.
  • In situ bioprinting was performed in a mouse calvaria defect model.

Main Results:

  • LAB enabled precise deposition of cells and biomaterials.
  • The bioprinted construct facilitated bone regeneration in the defect site.
  • Histological analysis confirmed new bone formation.

Conclusions:

  • Laser-assisted bioprinting is a viable technique for creating bone substitutes.
  • The combination of mesenchymal stromal cells, collagen, and nanohydroxyapatite promotes bone regeneration.
  • LAB holds significant potential for in situ bone tissue engineering applications.