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Updated: Jul 15, 2026
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Fabrication of Micro-tissues using Modules of Collagen Gel Containing Cells
Published on: December 13, 2010
Fabrication of cell-containing gel modules to assemble modular tissue-engineered constructs [corrected]
Alison P McGuigan1, Brendan Leung, Michael V Sefton
1Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario, Canada, M5S 3G9. alison.mcguigan@utoronto.ca
Nature Protocols
|April 5, 2007
Summary
This study presents a new method for creating cell-laden collagen modules for tissue engineering. These modules can be assembled into larger constructs using a continuous flow system, offering versatile applications.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Cell Encapsulation
Background:
- Developing scalable methods for creating tissue-engineered constructs is crucial for regenerative medicine.
- Current techniques often face challenges in achieving precise control over construct architecture and cell distribution.
- Modular approaches offer a promising strategy for building complex biological structures.
Purpose of the Study:
- To describe a novel protocol for fabricating and assembling cell-encapsulated collagen modules.
- To demonstrate the versatility of this method for creating diverse tissue-engineered constructs.
- To establish a foundation for advanced modular tissue engineering.
Main Methods:
- Encapsulating cells within sub-millimeter cylindrical collagen modules using a small-bore polyethylene tube.
- Automated cutting and gentle vortexing to release cell-laden modules.
- Random assembly of modules into larger constructs within a continuous flow circuit.
Main Results:
- Successful fabrication of uniform, cell-containing collagen modules.
- Demonstrated ability to assemble modules into larger constructs in under 2 hours.
- Achieved a range of cylinder aspect ratios, enabling creation of discs or threads.
Conclusions:
- The described protocol provides an efficient and versatile method for modular tissue engineering.
- This technique allows for the creation of customizable, cell-laden constructs for various applications.
- The continuous flow assembly system offers scalability and control for future tissue engineering endeavors.
