Related Experiment Video
Updated: Dec 15, 2025

Quantitative Analysis of Viscoelastic Properties of Red Blood Cells Using Optical Tweezers and Defocusing Microscopy
Published on: March 25, 2022
Spectral Regularities of Viscoelastic Parameters of Whole Blood Exposed to Periodic Shear Stress
V P Demkin1, S V Mel'nichuk1, A V Gavar1
1National Research Tomsk State University, Tomsk, Russia.
Abstract:
Theoretic and experimental study of viscoelastic properties of the whole blood exposed to shear stress was carried out with acoustic resonance method based on the measurement of gain-frequency characteristics of resonating needle in an ARP-01M piezoelectric thromboelastograph (Mednord). The study revealed regularities in the changes of viscoelastic parameters of the whole blood within 0-80 kHz frequency range of shear vibrations. In this frequency range, the elastic (storage) modulus G' reflecting blood elasticity increased with frequency and significantly contributed to the complex viscosity coefficient. The revealed gain-frequency regularities open the vista to employ the acoustic resonance method to determine the viscoelastic parameters of the whole blood and their coagulation-induced changes in the wide frequency range of shear vibrations.
Related Concept Videos
Elastic Strain Energy for Shearing Stresses
Shearing Stress
The average shearing stress can be calculated by dividing the shear by the area of the cross-section.
Elastic Strain Energy for Normal Stresses
If...
Pressure Variation in a Fluid at Rest
When measuring pressure at two different levels within the fluid, the difference in...
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Shearing Strain

