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Advanced Bioinks for 3D Printing: A Materials Science Perspective.

David Chimene1, Kimberly K Lennox1, Roland R Kaunas1

  • 1Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA.

Annals of Biomedical Engineering
|May 18, 2016
PubMed
Summary

Advanced bioinks overcome 3D printing limitations, offering high fidelity and cell compatibility. These novel materials enable functional tissue scaffolds without compromising printability or cell viability.

Keywords:
3D printingBioinksHydrogelsInterpenetrating networks (IPNs)NanomaterialsSupramolecular

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • 3D Bioprinting

Background:

  • Traditional bioinks face limitations due to the
  • biofabrication window
  • requiring trade-offs between printability and cell viability.
  • Recent advancements in bioink design aim to overcome these limitations, enabling improved 3D printed scaffolds.

Purpose of the Study:

  • To review advanced bioink strategies that enhance 3D bioprinting capabilities.
  • To explore novel bioink compositions and their impact on scaffold functionality and cell integration.
  • To discuss the clinical potential of next-generation bioinks.

Main Methods:

  • Review of current literature on advanced bioink development.
  • Analysis of strategies including multimaterial, interpenetrating network, nanocomposite, and supramolecular bioinks.
  • Evaluation of bioink properties such as print fidelity, mechanical strength, and cytocompatibility.

Main Results:

  • Advanced bioinks demonstrate high print fidelity and shear-thinning properties.
  • Crosslinked scaffolds exhibit enhanced mechanical strength and cytocompatibility.
  • New bioinks can modulate encapsulated cell functions, moving beyond the traditional biofabrication window.

Conclusions:

  • Advanced bioinks represent a significant leap in 3D bioprinting, offering improved performance without compromising cell viability.
  • Emerging bioink technologies hold great promise for developing functional tissue scaffolds for clinical applications.
  • Continued innovation in bioink synthesis and biofabrication will drive the field towards successful clinical translation.