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Controlled Microfluidic Environment for Dynamic Investigation of Red Blood Cell Aggregation
Published on: June 4, 2015
Structural analysis of red blood cell aggregates under shear flow
1Department of Mechanical and Industrial Engineering, The University of Iowa, Iowa City, IA 52242, USA.
Annals of Biomedical Engineering
|December 22, 2009
Summary
New measures quantify red blood cell (RBC) aggregate structure in blood flow. A computational model shows these measures align with experimental data, aiding 2D vs. 3D analysis.
Area of Science:
- Biophysics
- Computational Biology
- Hemodynamics
Background:
- Red blood cell (RBC) aggregation is crucial in blood flow dynamics.
- Understanding RBC aggregate structure is key to diagnosing and treating blood flow disorders.
Purpose of the Study:
- To develop and apply novel quantitative measures for RBC aggregate structure.
- To investigate RBC aggregate formation under shear and channel flows using a new computational model.
- To compare 2D and 3D computational predictions of RBC aggregation.
Main Methods:
- Development of RBC aggregate structural measures based on contact averages and ellipse fitting.
- Application of a new mesoscale computational model for blood cell transport, collision, and adhesion.
- Examination of model sensitivity to adhesive surface energy density and shear rate.
Main Results:
- The developed measures effectively characterize RBC aggregate structure in various flow conditions.
- The mesoscale model demonstrates good agreement with existing experimental and theoretical data.
- Analysis reveals that 2D computations capture essential aspects of 3D RBC aggregate formation.
Conclusions:
- Novel structural measures provide valuable insights into RBC aggregation.
- The mesoscale model is a reliable tool for studying blood cell dynamics.
- 2D models can offer a computationally efficient yet informative approach to RBC aggregation studies.
