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Showing 1 to 9 of 9 for “"blood viscosity"”.
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The effect of blood chemistry on the rheological properties of the fluid
… coefficients were calculated on whole blood samples within a narrow range of hematocrit to investigate further the effect of the various plasma constituents on whole blood viscosity. Viscosity measurements were made on one hundred anticoagulated blood samples of known hematocrit and …
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RECYCLING OF WASTE BLOOD INTO FUNCTIONAL CARBON NANOPARTICLES
… presents an innovative approach to recycling blood waste by converting expired blood into hemoglobin-derived carbon nanoparticles (Hemodots, HDs) with potential biomedical applications. The study addresses challenges in blood waste management and explores alternative anticoagulant therapies. …
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Investigations of photoplethysmography in the assessment of haemodynamics, vascular mechanics and haemorheology
… and non‐pharmacological treatments. Blood Pressure (BP), Arterial Stiffness (AS) and Blood Viscosity (BV) are three essential parameters that can provide a reliable assessment of hypertension, atherosclerosis, and hyperviscosity associated with the development and progression of …
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Rheological aspects of sickle cell anemia and related hemoglobinopathies
… the optimum oxygen carrying capacity of blood. Using a Weissenberg Rheogoniometer with cone-andplate geometry, viscosity measurements at different hematocrits and oxygen tensions were made on patients with the following diseases: normal, sickle cell, sickle cell trait, sickle cell …
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Red Blood Cell Aggregation Characterization: Quantification and Modeling Implications of Red Blood Cell Aggregation at Low Shear Rates
Red blood cells (RBCs) are the most abundant cells in human blood, representing 40 to 45% of the blood volume (hematocrit). These cells have the particular ability to deform and bridge together to form aggregates under very low shear rates. The theory and mechanics behind aggregation are, however, …
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Novel approach towards pathogenesis and treatment of sickle cell disease
… worldwide. HbS polymerisation causes altered red blood cell (RBC) rheology and fragility, increase in blood viscosity with blockage of small blood vessels, and RBC membrane permeability changes. Excessive levels of cell-free Hb, high autoxidation of Hb, contribute to the production of reactive …
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Mathematical Evaluation of Steady, Laminar Flow by the use of Continuous-Wave (CW) Doppler and Pitot Tube System
… was developed to measure the instantaneous blood (or particle) velocity. The bent tube was moved across the lumen of the vessel in steps of 0.1 mm., and particle velocity was measured at each sampling point. The distribution of velocity was parabolic and the agreement between experimental …
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LES of pulsatile flow in the models of arterial stenosis and aneurysm
… types of Newtonian and non-Newtonian pulsatile blood flow in a constricted as well as in a dilated channel to gain insight of the transition-to-turbulent blood flow due to the arterial stenosis and aneurysm. In the stenosed model, a cosine shape stenosis is placed at the upper wall of a 3D …
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The influence of acute, chronic and lifelong hypoxia on the functional and structural integrity of the neurovascular unit
… measures for Study 1 and 2: </i>Venous blood samples were assayed for biomarkers specific to oxidative-nitrosative stress (OXNOS; ascorbate free radical [A<sup>•−</sup>] and nitric oxide [NO] metabolites via electron paramagnetic resonance spectroscopy and ozone-based chemiluminescence, …