dorsal/arxiv
View SchemaSwinging of red blood cells under shear flow
| Authors | Manouk Abkarian, Magalie Faivre, Annie Viallat |
|---|---|
| Categories | |
| ArXiv ID | physics/0701174 |
| URL | https://arxiv.org/abs/physics/0701174 |
| DOI | 10.1103/PhysRevLett.98.188302 |
Abstract
We reveal that under moderate shear stress (of the order of 0.1 Pa) red blood cells present an oscillation of their inclination (swinging) superimposed to the long-observed steady tanktreading (TT) motion. A model based on a fluid ellipsoid surrounded by a visco-elastic membrane initially unstrained (shape memory) predicts all observed features of the motion: an increase of both swinging amplitude and period (1/2 the TT period) upon decreasing the shear stress, a shear stress-triggered transition towards a narrow shear stress-range intermittent regime of successive swinging and tumbling, and a pure tumbling motion at lower shear stress-values.
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"abstract": "We reveal that under moderate shear stress (of the order of 0.1 Pa) red blood\ncells present an oscillation of their inclination (swinging) superimposed to\nthe long-observed steady tanktreading (TT) motion. A model based on a fluid\nellipsoid surrounded by a visco-elastic membrane initially unstrained (shape\nmemory) predicts all observed features of the motion: an increase of both\nswinging amplitude and period (1/2 the TT period) upon decreasing the shear\nstress, a shear stress-triggered transition towards a narrow shear stress-range\nintermittent regime of successive swinging and tumbling, and a pure tumbling\nmotion at lower shear stress-values.",
"arxiv_id": "physics/0701174",
"authors": [
"Manouk Abkarian",
"Magalie Faivre",
"Annie Viallat"
],
"categories": [
"physics.bio-ph"
],
"doi": "10.1103/PhysRevLett.98.188302",
"title": "Swinging of red blood cells under shear flow",
"url": "https://arxiv.org/abs/physics/0701174"
},
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