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Updated: May 17, 2025

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Microfluidic-assisted engineering of hydrogels with microscale complexity.

Yuehong Li1, Danyang Huang1, Yuting Zhang1

  • 1National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China; College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China.

Acta Biomaterialia
|May 11, 2025
PubMed
Summary
This summary is machine-generated.

Microfluidics and 3D bioprinting enable precise hydrogel scaffold engineering for advanced organoids and organ-on-a-chip models. These technologies create complex tissue constructs with improved cellular control and functionality.

Keywords:
3D bioprintingHydrogelMicrofluidicsMicrospheresOrgan-on-a-chip

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Microfluidics

Background:

  • Hydrogels mimic the extracellular matrix (ECM) for 3D cell culture.
  • Microfluidics and 3D bioprinting offer precise control over hydrogel scaffold fabrication and assembly.
  • These technologies are crucial for developing advanced organoids and organ-on-a-chip systems.

Purpose of the Study:

  • To review microfluidic strategies for hydrogel microsphere and microfiber preparation.
  • To discuss the integration of microfluidics with 3D bioprinting technologies.
  • To highlight applications in organoid and organ-on-a-chip development.

Main Methods:

  • Microfluidic-assisted fabrication of hydrogel microspheres (0D) and microfibers (1D).
  • Hierarchical assembly of hydrogel modules into 3D constructs.
  • Integration with 3D bioprinting for spatial engineering and culturing.

Main Results:

  • Unprecedented precision in hydrogel size, morphology, and composition control.
  • Generation of 3D constructs with microscale complexity, including gradients and vascular networks.
  • Overcoming limitations of static 3D cultures with dynamic microenvironments.

Conclusions:

  • Synergistic integration of microfluidics and bioprinting enables sophisticated tissue models.
  • Advances facilitate improved cellular heterogeneity, vasculature, and multicellular interactions.
  • Paves the way for next-generation organoids and organ-on-a-chip systems that better mimic human pathophysiology.