Abstract:
The flow of whole and diluted blood with erythrocyte concentrations of 1, 5 and 10% was studied in a microchannel with a stenosis made by soft photolithography. Differences in flow rates and structure before and after constriction were found. Erythrocyte rates on the axis of symmetry in whole blood after constriction are slightly lower than before it, while in diluted blood, on the contrary, they are significantly higher. The orientation of erythrocytes perpendicular to the flow lines, after the whole blood passes the stenosis, suggests that the process of thrombus formation is more likely not before, but after the constriction.