000153934 001__ 153934 000153934 005__ 20240610121112.0 000153934 0247_ $$2doi$$a10.1039/c3sm52860j 000153934 0247_ $$2ISSN$$a1744-683X 000153934 0247_ $$2ISSN$$a1744-6848 000153934 0247_ $$2WOS$$aWOS:000334494000006 000153934 0247_ $$2altmetric$$aaltmetric:2082502 000153934 0247_ $$2pmid$$apmid:24695813 000153934 0247_ $$2Handle$$a2128/22890 000153934 037__ $$aFZJ-2014-03387 000153934 082__ $$a530 000153934 1001_ $$0P:(DE-HGF)0$$aFedosov, Dmitry A.$$b0$$eCorresponding Author 000153934 245__ $$aWhite blood cell margination in microcirculation 000153934 260__ $$aCambridge$$bRoyal Society of Chemistry (RSC)$$c2014 000153934 3367_ $$2DRIVER$$aarticle 000153934 3367_ $$2DataCite$$aOutput Types/Journal article 000153934 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1401879626_21130 000153934 3367_ $$2BibTeX$$aARTICLE 000153934 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000153934 3367_ $$00$$2EndNote$$aJournal Article 000153934 520__ $$aProper functioning of white blood cells is not possible without their ability to adhere to vascular endothelium, which may occur only if they are close enough to vessel walls. To facilitate the adhesion, white blood cells migrate toward the vessel walls in blood flow through a process called margination. The margination of white cells depends on a number of conditions including local hematocrit, flow rate, red blood cell aggregation, and the deformability of both red and white cells. To better understand the margination process of white blood cells, we employ mesoscopic hydrodynamic simulations of a three-dimensional model of blood flow, which has been previously shown to capture quantitatively realistic blood flow properties and rheology. The margination properties of white blood cells are studied for a wide range of hematocrit values and flow conditions. Efficient white blood cell margination is found in an intermediate range of hematocrit values of Ht ≈ 0.2–0.4 and at relatively low flow rates, characteristic of the venular part of microcirculation. In addition, aggregation interactions between red blood cells lead to enhanced white-blood-cell margination. 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