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Microengineering 3D Collagen Hydrogels with Long-Range Fiber Alignment
JoVE Journal
Bioengineering
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JoVE Journal Bioengineering
Microengineering 3D Collagen Hydrogels with Long-Range Fiber Alignment
DOI:

07:12 min

September 07, 2022

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Chapters

  • 00:04Introduction
  • 00:38Fabrication of the Two-Piece Channel and Modular Platform Base
  • 04:28Injecting the COL1 Solution into the Microchannel and Removing the Cover for Cell Culture Applications
  • 06:16Results: Confocal Reflectance Images of COL1 Fibers
  • 06:45Conclusion

Summary

Automatic Translation

This protocol demonstrates the use of a microfluidic channel with changing geometry along the fluid flow direction to generate extensional strain (stretching) to align fibers in a 3D collagen hydrogel (<250 µm in thickness). The resulting alignment extends across several millimeters and is influenced by the extensional strain rate.

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