Modeling of acoustic signals during optoacoustic conversion for axisymmetric non-spherical forms of erythrocytes

In this paper, the modeling of intermediate forms in the transformation of red blood cells using the example of three-dimensional figures for the subsequent study of changes in optoacoustic signals was carried out. The spatial shapes of erythrocytes are modeled using the Chebyshev polynomial. A model for changing the shape of erythrocytes has been developed for modeling an acoustic signal in order to determine the shape of erythrocytes using an optoacoustic effect. Erythrocytes are known to carry oxygen and carbon dioxide (CO2). Oxygen is transferred from the lungs to the tissue, where it is exchanged for CO2. A healthy red cell is biconcave, the cell is flexible and takes the form of a bell when it passes through very small blood vessels. The erythrocyte is covered with a membrane consisting of lipids and proteins, without nucleus and contains hemoglobin - a red, iron-rich protein that binds oxygen. Before isolation from the bone marrow into the peripheral blood, the ery throcytes lose their nuclei, which gives the advantages of reduced weight and transformation into a biconcave disc with increased deformability compared to the more rigid spheroidal.