The fractal dimension of red blood cell aggregates in dextran 70 solutions

• Autorzy: Bosek M. , Szołna-Chodór A. , Antonova N. , Grzegorzewski B.

Identyfikatory

DOI

10.5277/oa180312

• Języki publikacji: EN

Abstrakty

EN

Fractal dimension of three dimensional red blood cell aggregates were determined by measurement of their size and sedimentation velocity. The sedimentation of the aggregates was investigated with red blood cells suspended in dextran 70 solutions at concentrations from 2 to 5 g/dL, at hematocrit 5% and 10%. The aggregate velocity and size were measured using an image analysis technique. The velocity vs. radius dependence of the aggregates exhibited a scaling behavior. This behavior showed the fractal structure of the aggregates. It is shown that the fractal dimension of the three dimensional red blood cell aggregates depends on the dextran concentration in the suspension. This parameter exhibited a minimum at dextran concentration between 3 and 4 g/dL. Thus the fractal dimensions increased as the aggregation extent decreased. The obtained results show that the sedimentation experiment together with image analysis is a promising technique to determine the fractal dimension of the three dimensional red blood cell aggregates.

Słowa kluczowe

EN

red blood cells; aggregation; fractal dimension; dextran 70

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2018
• Tom: Vol. 48, nr 3
• Strony: 477--488
• Opis fizyczny: Bibliogr. 32 poz., rys.

Twórcy

autor

Bosek M.

• Department of Biophysics, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, ul. Jagiellońska 15, 85-067 Bydgoszcz, Poland

autor

Szołna-Chodór A.

• Department of Biophysics, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, ul. Jagiellońska 15, 85-067 Bydgoszcz, Poland

autor

Antonova N.

• Department of Biomechanics, Institute of Mechanics, Bulgarian Academy of Sciences, Acad. G. Bonchev St., bl. 4, 1113 Sofia, Bulgaria

autor

Grzegorzewski B.

• Department of Biophysics, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, ul. Jagiellońska 15, 85-067 Bydgoszcz, Poland

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