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Updated: Dec 21, 2025

Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink
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Bioprintable tough hydrogels for tissue engineering applications.

Pramod Dorishetty1, Naba K Dutta1, Namita Roy Choudhury1

  • 1Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia.

Advances in Colloid and Interface Science
|May 11, 2020
PubMed
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Bioprinting enables engineering complex living structures using cell-incorporated hydrogels (bioinks). This review covers advanced bioink formulations and techniques for printing tough hydrogels for tissue engineering.

Area of Science:

  • Bioprinting and Tissue Engineering
  • Materials Science and Engineering
  • Cell Biology

Background:

  • Conventional fabrication methods struggle with the structural and biological complexities of living tissues.
  • Bioprinting offers precise control over spatial resolution and cell distribution using cell-incorporated hydrogels (bioinks).
  • Printing tough hydrogels presents unique challenges in crosslinking, reinforcement, and cellular activity management.

Purpose of the Study:

  • To review current bioprinting techniques, focusing on bioink formulations for tough hydrogels.
  • To explore the transition from 3D to 4D bioprinting and advanced characterization methods.
  • To discuss future perspectives in hydrogel biofabrication for tissue engineering.

Main Methods:

  • Review of literature on bioprinting techniques and bioink formulations.
Keywords:
4D printingBioprintingSupramolecular gelTissue engineeringTough hydrogels

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  • Analysis of pivotal characteristics of bioinks for tough hydrogel printing.
  • Discussion of advanced characterization techniques for microstructural analysis.

    • Main Results:

    • Identified state-of-the-art bioink formulations and key characteristics for printing tough hydrogels.
    • Highlighted the potential of 3D to 4D bioprinting for dynamic tissue constructs.
    • Presented advanced characterization techniques for understanding the bioprinting process.

    Conclusions:

    • Bioprinting requires interdisciplinary approaches from engineering, material science, and cell biology.
    • Advanced bioink development is crucial for fabricating complex and tough hydrogel-based tissue constructs.
    • Future research should focus on innovative biofabrication strategies for enhanced tissue engineering applications.