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Updated: Jun 18, 2026

Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink
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Tuning hydrogel properties for applications in tissue engineering.

Sudhir Khetan1, Cindy Chung, Jason A Burdick

  • 1Department of Bioengineering, University of Pennsylvania, PA 19104 USA.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|December 8, 2009
PubMed
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Researchers engineered hyaluronic acid hydrogels for tissue engineering. Controlling hydrogel degradation influences cell behavior, extracellular matrix deposition, and cell spreading, impacting engineered tissue structure and stem cell differentiation.

Area of Science:

  • Biomaterial design for tissue engineering applications.
  • Hydrogel fabrication and characterization.
  • Cellular interactions with biomaterials.

Background:

  • Biomaterial properties, including physical (degradation, mechanics) and chemical (adhesion, cellular interactions), are critical for tissue engineering success.
  • Swollen hydrogels are promising as cell carriers in tissue engineering.
  • Hyaluronic acid (HA) is a naturally occurring biomaterial found in many tissues, making it suitable for hydrogel fabrication.

Purpose of the Study:

  • To investigate the control over hydrogel degradation, both in bulk and locally around cells.
  • To determine how controlled degradation influences extracellular matrix distribution and cell spreading within hydrogels.
  • To assess the impact of these signals on the final structure, mechanical properties, and stem cell differentiation in engineered tissues.

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Last Updated: Jun 18, 2026

Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink
08:34

Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink

Published on: April 21, 2016

Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications
08:50

Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications

Published on: August 4, 2017

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture
10:49

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

Published on: July 10, 2013

Main Methods:

  • Fabrication of hyaluronic acid (HA)-based hydrogels.
  • Manipulation of hydrogel degradation rates (bulk and local).
  • Assessment of cell behavior, including extracellular matrix deposition and cell spreading.
  • Evaluation of engineered tissue structure, mechanics, and stem cell differentiation.

Main Results:

  • Demonstrated precise control over both bulk and local degradation of HA hydrogels.
  • Showed that degradation control significantly impacts the distribution of extracellular matrix produced by cells.
  • Established that degradation influences whether encapsulated cells spread within the hydrogel matrix.

Conclusions:

  • Tailoring hydrogel degradation is a key strategy in biomaterial design for tissue engineering.
  • Controlled degradation influences cell-mediated matrix deposition and cell morphology, critical for tissue development.
  • These findings provide insights into optimizing engineered tissue properties and directing stem cell fate.