Thrombosis and hemolysis are two problems encountered when processing blood in artificial organs. Physical factors of blood flow alone can influence the interaction of proteins and cells with the vessel wall, induce platelet aggregation and influence coagulation factors responsible for the formation of thrombus, even in the absence of chemical factors in the blood. These physical factors are related to the magnitude of the shear rate/stress, the duration of the applied force and the local geometry. Specifically, high blood shear rates (or stress) lead to damage (hemolysis, platelet activation), while low shear rates lead to stagnation and thrombosis .
- Bioengineering Division
Effect of Blood Viscosity on Thrombosis Potential Near a Step Wall Transition
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Corbett, SC, Ajdari, A, Coskun, AU, & N.-Hashemi, H. "Effect of Blood Viscosity on Thrombosis Potential Near a Step Wall Transition." Proceedings of the ASME 2009 Summer Bioengineering Conference. ASME 2009 Summer Bioengineering Conference, Parts A and B. Lake Tahoe, California, USA. June 17–21, 2009. pp. 457-458. ASME. https://doi.org/10.1115/SBC2009-206629
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