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Chitosan as an Underrated Polymer in Modern Tissue Engineering.

Marta Kołodziejska1, Kamila Jankowska1, Marta Klak1,2

  • 1Foundation of Research and Science Development, 01-793 Warsaw, Poland.

Nanomaterials (Basel, Switzerland)
|November 27, 2021
PubMed
Summary

Chitosan, a versatile biopolymer, is crucial in tissue engineering for creating scaffolds, drug carriers, and bio-inks. Its modifiable properties and blends enhance biomaterials for advanced medical applications, including 3D bioprinting.

Keywords:
3Dbio-inkbiomedicinebiopolymerbioprintingchitosan

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Tissue Engineering

Background:

  • Chitosan is a widely recognized and characterized biopolymer extensively utilized in tissue engineering.
  • Its unique chemical, biological, and physical properties make it a primary component in various biomaterials like membranes, scaffolds, drug carriers, and hydrogels.
  • Chitosan's inherent chemical structure and active groups facilitate modifications, enabling tailored material properties for specific applications, including endurance, mechanical strength, and degradation rates.

Purpose of the Study:

  • To review the diverse applications of chitosan and its derivatives in tissue engineering.
  • To highlight the role of chitosan in advanced biomaterials, particularly in bio-inks for medical applications.
  • To explore novel applications of modified chitosan, focusing on its potential in 3D bioprinting techniques for biomaterial fabrication.

Main Methods:

  • Comprehensive literature review of chitosan applications in tissue engineering.
  • Analysis of chitosan's chemical structure and modification strategies.
  • Examination of chitosan's compatibility with natural and synthetic polymers and other materials.
  • Focus on chitosan-based bio-inks and 3D bioprinting technologies.

Main Results:

  • Chitosan serves as a key component in numerous biomaterials, including advanced bio-inks.
  • Chitosan can be chemically modified and blended with various natural and synthetic polymers to achieve desired material characteristics.
  • Modified chitosan derivatives, such as carboxymethylated, acylated, quaternary ammonium, thiolated, and grafted chitosan, offer enhanced functionalities.
  • Chitosan-based materials show significant promise in 3D bioprinting for tissue engineering.

Conclusions:

  • Chitosan's versatility and tunable properties make it an indispensable material in tissue engineering.
  • Chitosan and its derivatives are pivotal in the development of innovative bio-inks and advanced biomaterials.
  • The integration of chitosan with 3D bioprinting represents a significant advancement in biomaterial fabrication for regenerative medicine.