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Image-guided, Laser-based Fabrication of Vascular-derived Microfluidic Networks
Published on: January 3, 2017
Sequential assembly of cell-laden hydrogel constructs to engineer vascular-like microchannels
Yanan Du1, Majid Ghodousi, Hao Qi
1Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, USA.
Biotechnology and Bioengineering
|February 22, 2011
Summary
This study presents a novel method for creating biomimetic vascular structures using sequential microgel assembly. This technique offers a simple, cost-effective approach for tissue engineering and in vitro models.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Microfluidics
Background:
- Microscale technologies and modular approaches are advancing tissue engineering.
- Precisely controlled architectures are crucial for biomimetic vascular structures.
Purpose of the Study:
- To develop a novel sequential assembly method for microengineered hydrogels (microgels).
- To create 3D tubular constructs with interconnected microchannels for biomimetic vasculature.
Main Methods:
- Fabrication of microgels with internal microchannels via photolithography.
- Sequential assembly of microgels in a biphasic reactor using physical forces and fluidic shear.
- Incorporation of endothelial and smooth muscle cells into concentric microgel designs.
Main Results:
- Successfully assembled microgels into 3D tubular constructs with multi-level interconnected lumens.
- Demonstrated successful fluid perfusion through the assembled constructs.
- Confirmed that the sequential assembly process maintains high cell viability.
Conclusions:
- Sequential microgel assembly is a simple, rapid, and cost-effective biofabrication method.
- This technique shows promise for creating tissue constructs with biomimetic vasculature.
- The method is adaptable for fabricating complex architectures in tissue engineering.
