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Related Concept Videos

The Bone Matrix01:18

The Bone Matrix

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Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
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Author Spotlight: Insights into the Use of Apple-Derived Cellulose Scaffolds for Bone Tissue Engineering
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Bioinspired mineralized collagen scaffolds for bone tissue engineering.

Zhengwei Li1,2, Tianming Du1, Changshun Ruan2

  • 1Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, PR China.

Bioactive Materials
|December 9, 2020
PubMed
Summary

Mineralized collagen scaffolds (MCSs) show promise for bone regeneration due to their biocompatibility and bone-like structure. This review covers MCS fabrication, osteogenesis regulation factors, and future directions for bone defect repair.

Keywords:
3D printingBiomechanicsBone repairCollagenMineralizationScaffold

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Orthopedic Engineering

Background:

  • Large segmental bone defects pose significant clinical challenges in orthopedics.
  • Mineralized collagen scaffolds (MCSs) offer biocompatibility, mechanical strength, and bone-like composition for bone regeneration.

Purpose of the Study:

  • To review the current state of mineralized collagen scaffolds (MCSs) for bone tissue engineering.
  • To discuss fabrication methods, osteogenesis regulation factors, and future prospects of MCSs.

Main Methods:

  • Review of current fabrication techniques for MCSs, including direct mineral composite, in-situ mineralization, and 3D printing.
  • Analysis of physical, biological, and chemical cues critical for regulating osteogenesis in MCSs.

Main Results:

  • Fabrication methods aim to enhance biomimetic physical structures of MCSs.
  • Physical (mechanics, morphology), biological (cells, growth factors), and chemical (composition, cross-linking) factors are key for osteogenic regulation.

Conclusions:

  • MCSs are promising bone substitutes for accelerating bone repair.
  • Future MCS development requires optimized biomimetic structures and biological characteristics for enhanced bone regeneration.