Continuous force-displacement relationships for the human red blood cell at different erythrocytic developmental stages ofPlasmodium falciparummalaria parasite

2004 ◽  
Vol 844 ◽  
Author(s):  
John P. Mills ◽  
Lan Qie ◽  
Ming Dao ◽  
Kevin S. W. Tan ◽  
Chwee Teck Lim ◽  
...  

ABSTRACTPrior work involving either aspiration of infected cells into micropipette under suction pressure or deformation in laminar shear flow revealed that the malaria parasitePlasmodium (P.) falciparumcould result in significant stiffening of infected human red blood cells (RBCs). In this paper, we present optical tweezers studies of progressive changes to nonlinear mechanical response of infected RBCs at different developmental stages ofP. falciparum.From early ring stage to late trophozoite and schizont stages, up to an order of magnitude increase in shear modulus was found under controlled mechanical loading by combining experiments with three-dimensional computational simulations. These results provide novel approaches to study changes in mechanical deformability in the advanced stages of parasite development in the erythrocyte, and suggest a significantly greater stiffening of the red blood cell due toP. falciparuminvasion than that considered from previous studies.

2006 ◽  
Vol 21 (8) ◽  
pp. 1871-1877 ◽  
Author(s):  
S. Suresh

Aspects of mechanical deformability and biorheology of the human red blood cell are known to play a pivotal role in influencing organ function as well as states of overall health and disease. In this article, consequences of alterations to the membrane and cytoskeletal molecular structure of the human red blood cell are considered in the context of an infectious disease,Plasmodium falciparummalaria, and several hereditary hemolytic disorders: spherocytosis, elliptocytosis, and sickle cell anemia. In each of these cases, the effects of altered cell shape or molecular structure on cell elasticity, motility, and biorheology are examined. These examples are used to gain broad perspectives on the connections among cell and subcellular structure, properties, and disease at the intersections of engineering, biology, and medicine.


2006 ◽  
Vol 3 (11) ◽  
pp. 823-831 ◽  
Author(s):  
T.I Zohdi ◽  
F.A Kuypers

The goal of this work is to develop a computational framework to rapidly simulate the light scattering response of multiple red blood cells. Because the wavelength of visible light (3.8×10 −7  m≤ λ ≤7.2×10 −7  m) is approximately an order of magnitude smaller than the diameter of a typical red blood cell scatterer ( d ≈8×10 −6  m), geometric ray-tracing theory is applicable, and can be used to quickly ascertain the amount of optical energy, characterized by the Poynting vector, that is reflected and absorbed by multiple red blood cells. The overall objective is to provide a straightforward approach that can be easily implemented by researchers in the field, using standard desktop computers. Three-dimensional examples are given to illustrate the approach and the results compare quite closely to experiments on blood samples conducted at the Children's Hospital Oakland Research Institute (CHORI).


Soft Matter ◽  
2020 ◽  
Vol 16 (26) ◽  
pp. 6191-6205 ◽  
Author(s):  
Fabio Guglietta ◽  
Marek Behr ◽  
Luca Biferale ◽  
Giacomo Falcucci ◽  
Mauro Sbragaglia

Computational Fluid Dynamics is currently used to design and improve the hydraulic properties of biomedical devices, wherein the large scale blood circulation needs to be simulated by accounting for the mechanical response of RBCs at the mesoscale.


2010 ◽  
Vol 18 (10) ◽  
pp. 10462 ◽  
Author(s):  
Sebastien Rancourt-Grenier ◽  
Ming-Tzo Wei ◽  
Jar-Jin Bai ◽  
Arthur Chiou ◽  
Paul P. Bareil ◽  
...  

PLoS ONE ◽  
2018 ◽  
Vol 13 (5) ◽  
pp. e0197619 ◽  
Author(s):  
Hyunjung Lim ◽  
Seung Min Back ◽  
Jeonghun Nam ◽  
Hyuk Choi

2016 ◽  
Vol 21 (3) ◽  
pp. 035001 ◽  
Author(s):  
Kisung Lee ◽  
Matti Kinnunen ◽  
Maria D. Khokhlova ◽  
Evgeny V. Lyubin ◽  
Alexander V. Priezzhev ◽  
...  

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