TY  - JOUR
AU  - Hoore, Masoud
AU  - Yaya, François
AU  - Podgorski, Thomas
AU  - Wagner, Christian
AU  - Gompper, Gerhard
AU  - Fedosov, Dmitry A.
TI  - Effect of spectrin network elasticity on the shapes of erythrocyte doublets
JO  - Soft matter
VL  - 14
IS  - 30
SN  - 1744-6848
CY  - London
PB  - Royal Soc. of Chemistry
M1  - FZJ-2018-04655
SP  - 6278 - 6289
PY  - 2018
AB  - Red blood cell (RBC) aggregates play an important role in determining blood rheology. RBCs in plasma or polymer solution interact attractively to form various shapes of RBC doublets, where the attractive interactions can be varied by changing the solution conditions. A systematic numerical study on RBC doublet formation is performed, which takes into account the shear elasticity of the RBC membrane due to the spectrin cytoskeleton, in addition to the membrane bending rigidity. RBC membranes are modeled by two-dimensional triangular networks of linked vertices, which represent three-dimensional cell shapes. The phase space of RBC doublet shapes in a wide range of adhesion strengths, reduced volumes, and shear elasticities is obtained. The shear elasticity of the RBC membrane changes the doublet phases significantly. Experimental images of RBC doublets in different solutions show similar configurations. Furthermore, we show that rouleau formation is affected by the doublet structure.
LB  - PUB:(DE-HGF)16
C6  - pmid:30014074
UR  - <Go to ISI:>//WOS:000449199000012
DO  - DOI:10.1039/C8SM00634B
UR  - https://juser.fz-juelich.de/record/850924
ER  -