AUTOREGRESSIVE ANALYSIS OF THE ERYTHROCYTE FLICKERING

LUIZA BUIMAGA-IARINCA

Department of Molecular and Biomolecular Physics, National Institute for R&D of Isotopic and Molecular Technology, P.O.Box 700, Cluj-Napoca 5, 400293, Romania,

We developed a non-invasive method to analyze the membrane fluctuation in order to characterize the flickering phenomena from a quantitative point of view. To analyze the red blood cell (RBCs) membrane undulation, we considered the variation of the diameter series of the cell. This RBC parameter was obtained both for cells suspended in plasma and buffered serum, pH = 7.4. Frequency spectra of the erythrocyte membrane flickering were fitted with a first order of autoregressive model (AR1). We found that most RBC diameter series are fitted in a good manner using the AR1 model. The interaction factor for the cell diameters series was considerably higher for the erythrocytes suspended in plasma than for those suspended in buffered serum

Author’s e-mail: iarinca@itim-cj.ro

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