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Clot Accumulation in 3D Microfluidic Bifurcating Microvasculature Network
Merav Belenkovich1, Ruth Veksler1, Yevgeniy Kreinin1
1Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Micromachines
|August 29, 2024
Summary
This study models blood clotting in 3D microvascular bifurcations, revealing they promote thrombus formation. The platform can model diseases with endothelial dysfunction, like Thrombotic Thrombocytopenic Purpura.
Area of Science:
- Biomedical Engineering
- Cardiovascular Research
- Hemodynamics
Background:
- The microvasculature is key to thrombosis (blood clot formation).
- Microflow dynamics significantly impact platelet activation and clot development.
- Understanding thrombosis requires accurate models of microvascular networks and flow.
Purpose of the Study:
- To develop an in vitro model of blood clotting in 3D microvascular bifurcations.
- To investigate thrombus formation at bifurcations aligned with Murray's Law.
- To assess the model's utility in studying diseases with endothelial dysfunction.
Main Methods:
- Fabrication of 3D microvascular bifurcation models.
- Emulation of physiological blood flow conditions.
- Culturing endothelial cells on luminal surfaces.
Main Results:
- Microvascular bifurcations were identified as preferential sites for thrombus formation compared to straight models.
- The in vitro platform successfully mimicked clot formation in microvessels.
- Endothelial cell culture demonstrated potential for disease modeling.
Conclusions:
- 3D microvascular bifurcations facilitate thrombus formation.
- This in vitro platform can model microvascular clotting and endothelial dysfunction-related diseases.
- The model offers a valuable tool for thrombosis research.
