Adhesion and rouleau formation of red cells in a shear flow

2007 ◽  
Author(s):  
Shirlene Liew ◽  
Alan Man ◽  
Jacquelyn Parente ◽  
Harry Samaroo ◽  
Isaac Stoner ◽  
...  
Keyword(s):  
Shear Flow ◽  
Red Cells ◽  
Rouleau Formation

Effects of shear rate on rouleau formation in simple shear flow

Biorheology ◽  
1988 ◽  
Vol 25 (1-2) ◽  
pp. 113-122 ◽  
Author(s):  
T. Murata ◽  
T.W. Secomb
Keyword(s):  
Shear Rate ◽  
Shear Flow ◽  
Simple Shear ◽  
Simple Shear Flow ◽  
Rouleau Formation

Threshold shear stress for the transition between tumbling and tank-treading of red blood cells in shear flow: dependence on the viscosity of the suspending medium

2013 ◽  
Vol 736 ◽  
pp. 351-365 ◽  
Author(s):  
Thomas M. Fischer ◽  
Rafal Korzeniewski
Keyword(s):  
Shear Flow ◽  
Red Blood Cells ◽  
Blood Cells ◽  
Theoretical Models ◽  
Red Cells ◽  
Theoretical Modelling ◽  
Glass Capillary ◽  
Basic Model ◽  
A Value ◽  
The Subject

AbstractRed blood cells are the subject of diverse studies. One branch is the observation and theoretical modelling of their behaviour in a shear flow. This work deals with the flow of single red cells suspended in solutions much more viscous than blood plasma. Below a critical shear rate (${\dot {\gamma } }_{t} $) the red cells rotate with little change of their resting shape. Above that value they become elongated and aligned in the shear field. We measured${\dot {\gamma } }_{t} $at viscosities (${\eta }_{0} $) ranging from 10.7 to 104 mPa s via observation along the vorticity of a Poiseuille flow in a glass capillary;${\eta }_{0} {\dot {\gamma } }_{t} $decreased steeply with increasing${\eta }_{0} $up to a value of 25 mPa s and remained constant for higher values. Present theoretical models are not in keeping with the measured data. Modifications of basic model assumptions are suggested.

Red Cells and Rouleaux in Shear Flow

Science ◽  
1966 ◽  
Vol 153 (3742) ◽  
pp. 1406-1407 ◽  
Author(s):  
H. L. Goldsmith
Keyword(s):  
Shear Flow ◽  
Red Cells

Cyclic Loading on the Red Cell Membrane in a Shear Flow: A Possible Cause of Hemolysis

1985 ◽  
Vol 107 (2) ◽  
pp. 91-95 ◽  
Author(s):  
H. Niimi ◽  
M. Sugihara
Keyword(s):  
Cyclic Loading ◽  
Cell Membrane ◽  
Shear Flow ◽  
Red Cells ◽  
Red Cell ◽  
Two Dimensional ◽  
Shear Forces ◽  
Red Cell Membrane ◽  
Possible Cause ◽  
Human Red Cells

The fluid force acting on single human red cells in a high shear flow was analyzed. A two-dimensional elliptical microcapsule as a model of the deformed red cells was adopted to numerically calculate the distributions of the shear forces on both sides of the cell membrane. It is theoretically shown that the cell membrane undergoes an unsteady cyclic loading under the rotational motion around the interior. The mechanism leading to blood cell trauma is examined by repeatedly loading the continuously moving cell membrane.

Differential Outcomes for Long Term ex vivo Lung Perfusion in a Porcine Model - With or without Red Cells?

2015 ◽  
Vol 63 (S 01) ◽  
Author(s):  
W. Sommer ◽  
M. Avsar ◽  
J. Salman ◽  
C. Kühn ◽  
I. Tudorache ◽  
...  
Keyword(s):  
Porcine Model ◽  
Ex Vivo ◽  
Lung Perfusion ◽  
Red Cells ◽  
Ex Vivo Lung Perfusion ◽  
Differential Outcomes

Liquoid Induced Stasis and the Generalized Shwartzman Reaction

1979 ◽  
Vol 41 (04) ◽  
pp. 804-810 ◽  
Author(s):  
Knut Nordstoga
Keyword(s):  
Red Cells ◽  
Renal Lesions ◽  
Intravenous Injections ◽  
Shwartzman Reaction ◽  
Glomerular Capillaries

SummaryThe composition of the occlusive material within dilated glomerular capillaries, following intravenous injections of Liquoid in blue foxes, was studied electron microscopically; it was found that it mainly consisted of a debris in which disintegrated red cells constituted the major component. Damaged platelets and necrotic endothelial remnants were other components. These observations were interpreted as a result of glomerular stasis, and it was concluded that stasis in glomerular capillaries is a basic event in the development of the renal lesions accompanying the generalized Shwartzman reaction.

Sign in / Sign up

Export Citation Format

Share Document