Related Experiment Video
Updated: Aug 20, 2025
10:27
Controlled Microfluidic Environment for Dynamic Investigation of Red Blood Cell Aggregation
Published on: June 4, 2015
11.9K
Relationship between red blood cell aggregation and dextran molecular mass.
Maciej Bosek1, Blanka Ziomkowska1, Jerzy Pyskir2
1Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska St. 13, 85-067, Bydgoszcz, Poland.
Scientific Reports
|November 17, 2022
Summary
Red blood cell (RBC) aggregation in dextran solutions was studied. Aggregate velocity and radius varied with dextran molecular mass and concentration, offering insights into protein solutions and disease states.
Area of Science:
- Biophysics
- Hematology
- Biomaterials
Background:
- Red blood cell (RBC) aggregation is crucial in microcirculation.
- Understanding RBC aggregation dynamics is vital for diagnosing and treating various diseases.
Purpose of the Study:
- To investigate the aggregation of RBCs in dextran solutions with varying molecular masses.
- To analyze the impact of dextran concentration on RBC aggregate properties.
Main Methods:
- RBCs were suspended in dextran solutions (40-500 kDa) at different concentrations (2-5 g/dL).
- Image analysis was used to measure the radius and sedimentation velocity of RBC aggregates.
- Aggregate porosity was calculated based on density and viscosity measurements.
Main Results:
- RBC aggregate radius and sedimentation velocity initially increased then decreased, showing maxima.
- Maximal velocity exhibited a bell-shaped dependence on dextran molecular mass and concentration.
- Aggregate porosity decreased monotonically with increasing dextran concentration.
Conclusions:
- Dextran molecular mass and concentration significantly influence RBC aggregation dynamics.
- Findings provide insights into RBC behavior in protein solutions relevant to pathological conditions.
- The data offers a basis for interpreting pathophysiological states involving RBC aggregation.
Related Concept Videos
01:10Blood Typing
1.3K
Understanding an individual's blood group is a critical component of transfusion medicine. It ensures compatibility in blood transfusions, organ transplants, and even during pregnancy. Determining these blood groups involves the ABO and Rh blood typing systems, utilizing specific antigens and corresponding anti-sera to identify an individual's blood type.
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target...
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target...
1.3K
02:35DNA Agarose Gel Electrophoresis
98.1K
Agarose gel electrophoresis is a laboratory technique commonly used to separate DNA fragments by size. However, it can also be used to isolate and purify DNA fragments using a gel extraction protocol.
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...
98.1K