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The impact of cell segregation and margination in blood disorders on microcirculatory hemodynamics within bifurcated vessels are physiologically significant, yet poorly understood. This study presents a comprehensive computational…

Biological Physics · Physics 2025-01-09 Xiaopo Cheng , Christina Caruso , Wilbur A. Lam , Michael D. Graham

Microfluidics-based biochips are soon expected to revolutionize clinical diagnosis, DNA sequencing, and other laboratory procedures involving molecular biology. Most microfluidic biochips are based on the principle of continuous fluid flow…

Hardware Architecture · Computer Science 2011-11-09 Fei Su , Krishnendu Chakrabarty

We present a rigorous procedure to derive coarse-grained red blood cell (RBC) models, which lead to accurate mechanical properties of realistic RBCs. Based on a semi-analytic theory linear and non-linear elastic properties of the RBC…

Cell Behavior · Quantitative Biology 2009-05-04 Dmitry A. Fedosov , Bruce Caswell , George E. Karniadakis

Minimally invasive medical procedures, such as endovascular catheterization, have drastically reduced procedure time and associated complications. However, many regions inside the body, such as in the brain vasculature, still remain…

Applied Physics · Physics 2021-01-27 Lucio Pancaldi , Pietro Dirix , Adele Fanelli , Diego Ghezzi , Mahmut Selman Sakar

We report a novel technique to passively create strong secondary flows at moderate to high flow rates in microchannels, accurately control them and finally, due to their deterministic nature, program them into microfluidic platforms. Based…

Fluid Dynamics · Physics 2011-10-20 Hamed Amini , Mahdokht Masaeli , Dino Di Carlo

The design of microfluidic devices is a cumbersome and tedious process that can be significantly improved by simulation. Methods based on Computational Fluid Dynamics (CFD) are considered state-of-the-art, but require extensive compute time…

Computational Engineering, Finance, and Science · Computer Science 2024-01-17 Michel Takken , Robert Wille

A microstructured graphitic 4x4 multielectrode array was embedded in a single crystal diamond substrate (4x4 {uG-SCD MEA) for real-time monitoring of exocytotic events from cultured chromaffin cells and adrenal slices. The current approach…

Instrumentation and Detectors · Physics 2016-08-26 F. Picollo , A. Battiato , E. Bernardi , A. Marcantoni , A. Pasquarelli , E. Carbone , P. Olivero , V. Carabelli

One of the fundamental problems is the understanding of physics of electrostatic and electromagnetic fluctuations in multi-scale plasma turbulence. Especially so, in continuously connected plasma regions with varying degree of…

Plasma Physics · Physics 2018-05-09 A. D. Patel , M. Sharma , N. Ramasubramanian , R. Ganesh , P. K. Chattopadhyay

Microfluidic systems hold great potential for the study of live microscopic cultures of cells, tissue samples, and small organisms. Integration of hyperpolarisation would enable quantitative studies of metabolism in such volume limited…

We describe a microfluidic device for studying the orientational dynamics of microrods. The device enables us to experimentally investigate the tumbling of microrods immersed in the shear flow in a microfluidic channel with a depth of 400…

Fluid Dynamics · Physics 2012-06-13 Y. N. Mishra , J. Einarsson , O. A. John , P. Andersson , B. Mehlig , D. Hanstorp

Microelectromagnet devices, a ring trap and a matrix, were developed for the microscopic control of biological systems. The ring trap is a circular Au wire with an insulator on top. The matrix has two arrays of straight Au wires, one array…

Quantitative Methods · Quantitative Biology 2007-05-23 H. Lee , A. M. Purdon , R. M. Westervelt

The lack of a simple operable method for longitudinal dynamic self-assembly of particles in a microchannel is one of the main problems in applying this technology to a wide range of researches, such as biomedical engineering, material…

Fluid Dynamics · Physics 2019-11-26 Linbo Liu , Haoyan Xu , Haibo Xiu , Nan Xiang , Zhonghua Ni

One of the vital functions of naturally occurring cilia is fluid transport. Biological cilia use spatially asymmetric strokes to generate a net fluid flow that can be utilized for feeding, swimming, and other functions. Biomimetic synthetic…

Fluid Dynamics · Physics 2018-07-19 Srinivas Hanasoge , Peter J. Hesketh , Alexander Alexeev

A novel frequency modulated MEMS magnetometer is presented. The new device is inspired by the magnetic force microscopy technique, it combines standard MEMS technology with magnetic elements to obtain a magnetometer with potential for low…

Instrumentation and Detectors · Physics 2021-09-08 Federico Maspero , Gabriele Gatani , Simone Cuccurullo , Riccardo Bertacco

Margination, a fundamental process in which leukocytes migrate from the flowing blood to the vessel wall, is well-documented in physiology. However, it is still an open question on how the differences in cell size and stiffness of white and…

Soft Condensed Matter · Physics 2024-09-05 Revaz D. Chachanidze , Othmane Aouane , Jens Harting , Christian Wagner , Marc Leonetti

This paper describes continuously phase-modulated standing surface acoustic waves (CPM-SSAW) and its application for particle separation in multiple pressure nodes. A linear change of phase in CPM-SSAW applies a force to particles whose…

Fluid Dynamics · Physics 2017-04-05 Junseok Lee , Chanryeol Rhyou , Byungjun Kang , Hyungsuk Lee

Controlled actuation of superparamagnetic beads (SPBs) within a microfluidic environment using tailored dynamic magnetic field landscapes (MFLs) is a potent approach for the realization of point-of-care diagnostics within Lab-on-a-chip…

Applied Physics · Physics 2023-11-07 Rico Huhnstock , Lukas Paetzold , Maximilian Merkel , Piotr Kuświk , Arno Ehresmann

Diabetic Retinopathy (DR) is a complication of long-standing, unchecked diabetes and one of the leading causes of blindness in the world. This paper focuses on improved and robust methods to extract some of the features of DR, viz. Blood…

Image and Video Processing · Electrical Eng. & Systems 2022-07-12 Soham Basu , Sayantan Mukherjee , Ankit Bhattacharya , Anindya Sen

The controlled transport of colloids in dead-end structures is a key capability that can enable a wide range of applications, such as bio-chemical analysis, drug delivery and underground oil recovery. This letter presents a new trapping…

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