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Microbial-Derived Polyhydroxyalkanoate-Based Scaffolds for Bone Tissue Engineering: Biosynthesis, Properties, and

Jian Li1,2, Xu Zhang3,4, Anjaneyulu Udduttula1

  • 1Shenzhen Engineering Research Center for Medical Bioactive Materials, Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.

Frontiers in Bioengineering and Biotechnology
|January 7, 2022
PubMed
Summary

Polyhydroxyalkanoates (PHAs) are natural biopolyesters with potential in tissue engineering. Research focuses on improving PHA production and properties for advanced bone tissue engineering scaffolds.

Keywords:
3D rapid prototypingbiocompatibilitybiodegradabilitybiopolyesterbone tissue engineeringpolyhydroxyalkanoatessynthetic biology

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Area of Science:

  • Biomaterials Science
  • Biotechnology
  • Tissue Engineering

Background:

  • Polyhydroxyalkanoates (PHAs) are microbial biopolyesters with desirable properties like biodegradability and biocompatibility for biomedical applications.
  • PHAs show promise in tissue engineering, particularly for bone regeneration, due to their tunable mechanical properties and processability.

Purpose of the Study:

  • To review the biosynthesis, properties, and applications of PHA scaffolds in bone tissue engineering.
  • To highlight advancements in PHA scaffold fabrication technologies and address current challenges.

Main Methods:

  • Literature review of PHA biosynthesis and properties.
  • Analysis of PHA scaffold fabrication techniques for bone tissue engineering.
  • Discussion of synthetic biology and metabolic engineering approaches.

Main Results:

  • PHAs offer excellent biocompatibility and biodegradability for tissue scaffolds.
  • Challenges in large-scale PHA production, purification, and property optimization persist.
  • Synthetic biology and metabolic engineering are key to enhancing PHA yield and properties.

Conclusions:

  • PHA scaffolds show significant potential for bone tissue engineering applications.
  • Further research is needed to overcome production and property limitations for widespread clinical use.
  • Advances in PHA scaffold technology are crucial for future bone regeneration strategies.