Experimental method for the study of blood and RBC suspension conductivity under flow

0431934 - ÚH 2015 RIV BG eng J - Journal Article
Antonova, N. - Říha, Pavel - Ivanov, I.
Experimental method for the study of blood and RBC suspension conductivity under flow.
COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES. Roč. 67, č. 7 (2014), s. 995-1004. ISSN 1310-1331
Grant - others:The Ministry of Education and Science of Bulgaria(BG) BG051PO001-3.3-05/0001; The Ministry of Education, Youth and Science of Bulgaria(BG) DO-805/2012
Institutional support: RVO:67985874
Keywords : viscometric flow * conductivity * blood/RBC suspension microstructural changes
OECD category: Nano-processes (applications on nano-scale)
Impact factor: 0.284, year: 2014

The study presents an electrorheological method developed for quantifica- tion of blood microstructural changes due to RBC aggregation-disaggregation and deformation processes at different shear rates and at different local struc- ture of the flow field. A concurrent measurement system based on the Contraves Low Shear 30 rotational rheometer, a device with data acquisition system, software and the programming unit Rheoscan 100 were used. Three different unsteady flow conditions are simulated: rectangular, trapezium-like and trian- gular regimes of changes of shear rates. The time variation of blood and RBC suspension conductivity at these unsteady flow conditions under electric field of 2 kHz are presented. The results show that the blood and RBC suspension conductivity is strongly dependent on shear rate, haematocrit, temperature and on the considered blood flow regimes.
Permanent Link: http://hdl.handle.net/11104/0236455