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arXiv · 1810.07760

Study of non-linear viscoelastic behavior of the human red blood cell

Horacio Castellini·Bibiana Riquelme
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Abstract

The non-linear behavior of human erythrocytes subjected to shear stress was analyzed using data series from the Erythrocyte Rheometer and a theoretical model was developed. Linear behavior was eliminated by means of a slot filter and a sixth order Savisky-Golay filter was applied to the resulting time series that allows the elimination of any possible white noise in the data. A fast Fourier transform was performed on the processed data, which resulted in a series of frequency dominant peaks. Results suggest the presence of a non-linear quadratic term in the Kelvin-Voigt phenomenological model. The correlation dimension studied through recurrence quantification analysis gave C2=2.58. Results suggest that the underlying dynamics is the same in each RBC sample corresponding to healthy donors.

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Horacio Castellini, Bibiana Riquelme. 2018-10-17. Study of non-linear viscoelastic behavior of the human red blood cell. https://arxiv.org/abs/1810.07760

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