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The deformability of human red blood cells (RBCs), which comprise almost 99% of the cells in whole blood, is largely related not only to pathophysiological blood flow but also to the levels of intracellular compounds. Therefore, statistical…

Red blood cells (RBCs) are an essential component of blood. A method to include the particulate nature of blood is introduced here with the goal of studying circulation in large-scale realistic vessels. The method uses a combination of the…

Medical Physics · Physics 2011-07-26 Simone Melchionna

In the past two decades, under the conditions that both the osmotic pressure $\Delta p$ and tensile stress $\lambda$ equal zero, a rigorous solution (RS) of human red blood cell (RBC) with a minus spontaneous curvature $c_{0}$ has been…

Biological Physics · Physics 2016-08-05 Xue-Jun Zhang , Zhong-Can Ou-Yang

Many of the intriguing properties of blood originate from its cellular nature. Bulk effects, such as viscosity, depend on the local shear rates and on the size of the vessels. While empirical descriptions of bulk rheology are available for…

Computational Engineering, Finance, and Science · Computer Science 2023-05-05 Gabor Zavodszky , Christian Spieker , Benjamin Czaja , Britt van Rooij

Flux of rigid or soft particles (such as drops, vesicles, red blood cells, etc.) in a channel is a complex function of particle concentration, which depends on the details of induced dissipation and suspension structure due to hydrodynamic…

The complete blood count (CBC) performed by automated hematology analyzers is one of the most ordered laboratory tests. It is a first-line tool for assessing a patient's general health status, or diagnosing and monitoring disease…

Machine Learning · Statistics 2020-11-25 Marta Avalos-Fernandez , Helene Touchais , Marcela Henriquez-Henriquez

Modeling of the red blood cell (RBC) shape is an integral part of the experimental and computer simulation investigations of light scattering by these cells for fundamental studies as well as diagnostic applications in techniques like…

Biological Physics · Physics 2024-06-18 Gaurav D. Bhabhor , Chetna Patel , Nishant Chhillar , Arun Anand , Kirit N. Lad

Abnormal hemoglobins can have major consequences for tissue delivery of oxygen. Correct diagnosis of hemoglobinopathies with altered oxygen affinity requires a determination of hemoglobin oxygen dissociation curve (ODC), which relates the…

Biomolecules · Quantitative Biology 2020-01-03 Rosella Scrima , Sabino Fugetto , Nazzareno Capitanio , Domenico L. Gatti

Hemodynamic parameters are often estimated assuming a constant Newtonian viscosity, even though blood exhibits shear-thinning behavior. This article investigates the influence of blood rheology and hematocrit (Hct) percentage on the…

Signal Processing · Electrical Eng. & Systems 2025-07-15 Hernán Mella , Felipe Galarce , Tetsuro Sekine , Julio Sotelo , Ernesto Castillo

Blood transfusion is one of the most crucial and commonly administered therapeutics worldwide. The need for more accurate and efficient ways to manage blood demand and supply is an increasing concern. Building a technology-based, robust…

Applications · Statistics 2021-03-11 Na Li , Fei Chiang , Douglas G. Down , Nancy M. Heddle

Partitioning of red blood cells (RBCs) at the level of bifurcations in the microcirculatory system affects many physiological functions yet it remains poorly understood. We address this problem by using T-shaped microfluidic bifurcations as…

Biological Physics · Physics 2016-01-13 Zaiyi Shen , Gwennou Coupier , Badr Kaoui , Benoît Polack , Jens Harting , Chaouqi Misbah , Thomas Podgorski

Oxygen is transported throughout the body by hemoglobin in red blood cells. While the oxygen affinity of blood is well understood and is routinely assessed in patients by pulse oximetry, variability at the single-cell level has not been…

Biological Physics · Physics 2015-05-18 Di Caprio , Chris Stokes , John M. Higgins , Ethan Schonbrun

Red blood cells (RBCs) are vital for transporting oxygen from the lungs to the body's tissues through the intricate circulatory system. They achieve this by binding and releasing oxygen molecules to the abundant hemoglobin within their…

Biological Physics · Physics 2025-06-03 Lucas Amoudruz , Athena Economides , Petros Koumoutsakos

The nature of blood as a suspension of red blood cells makes computational hemodynamics a demanding task. Our coarse-grained blood model, which builds on a lattice Boltzmann method for soft particle suspensions, enables the study of the…

Soft Condensed Matter · Physics 2011-09-16 Florian Janoschek , Francesca Mancini , Jens Harting , Federico Toschi

The stress-free state (SFS) of red blood cells (RBCs) is a fundamental reference configuration for the calibration of computational models, yet it remains unknown. Current experimental methods cannot measure the SFS of cells without…

Computational Engineering, Finance, and Science · Computer Science 2023-04-04 Lucas Amoudruz , Athena Economides , Georgios Arampatzis , Petros Koumoutsakos

An imbalance between bodily heat production and heat dissipation leads to heat stress in organisms. In addition to diminished animal well-being, heat stress is detrimental to the poultry industry as poultry entails fast growth and high…

Biological Physics · Physics 2024-05-27 Prateek Verma , Elizabeth Adeogun , Elizabeth S. Greene , Sami Dridi , Ukash Nakarmi , Karthik Nayani

Red blood cells (RBCs) are responsible for transporting oxygen and various metabolites to tissues and organs, as well as removing waste. Several cardiovascular diseases can impair these functions. For instance, in diabetes, increased RBC…

Biological Physics · Physics 2025-01-08 Mehdi Abbasi , Chaouqi Misbah

A mixed suspension of red blood cells (RBCs) and microparticles flows through a cylindrical channel with a constriction mimicking a stenosed blood vessel. Our three-dimensional Lattice-Boltzmann simulations show that the RBCs are depleted…

Fluid Dynamics · Physics 2017-02-01 Christian Bächer , Lukas Schrack , Stephan Gekle

Many methods to computationally predict red blood cell damage have been introduced, and among these are Lagrangian methods which track the cells along their pathlines. Such methods typically do not explicitly include cell-cell interactions.…

Fluid Dynamics · Physics 2023-09-22 Grant Rydquist , Mahdi Esmaily

Bacteraemia, a bloodstream infection with high morbidity and mortality rates, poses significant diagnostic challenges. Accurate diagnosis through blood cultures is resource-intensive. Developing a machine learning model to predict blood…

Machine Learning · Computer Science 2024-10-29 Kira Sam
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