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Updated: Jul 6, 2026

Microfluidics in Assessing Platelet Function
06:47

Microfluidics in Assessing Platelet Function

Published on: November 8, 2024

Static magnetic fields induce blood flow decrease and platelet adherence in tumor microvessels.

Sebastian Strieth1, Donata Strelczyk, Martin E Eichhorn

  • 1Department of Otorhinolaryngology, Universityof Munich (LMU), Marchioninistr. 15, Munich 81377 Germany. sebastian.strieth@med.uni-muenchen.de

Cancer Biology & Therapy
|March 15, 2008
PubMed
Summary
This summary is machine-generated.

Strong static magnetic fields (SMFs) reduce red blood cell flow in tumor microvessels. Platelet adherence increases reversibly, suggesting potential applications for MRI and SMF-based cancer therapies.

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A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

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A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

Published on: February 14, 2017

Area of Science:

  • Biophysics
  • Oncology
  • Medical Imaging

Background:

  • Tumor microcirculation exhibits chaotic architecture and sluggish blood flow.
  • Red blood cell flow is known to decrease under strong static magnetic fields (SMFs).

Purpose of the Study:

  • To investigate the effects of SMF exposure on tumor microcirculation.
  • To analyze interactions between blood components and tumor microvessel walls under SMF exposure.

Main Methods:

  • In vivo fluorescence microscopy in A-Mel-3 tumor models in Syrian Golden hamsters.
  • Exposure to varying SMF strengths (up to 587 mT) generated by NdFeB magnets.
  • Measurement of red blood cell velocity, vessel density, and cell-endothelial interactions.

Main Results:

  • SMF exposure above 150 mT significantly reduced red blood cell velocity and segmental blood flow.
  • A reversible reduction in red blood cell velocity (approx. 40%) and functional vessel density (approx. 15%) was observed at 587 mT.
  • Platelet-endothelial cell adherence increased significantly and reversibly in tumors, unlike in control tissues.

Conclusions:

  • SMF exposure reversibly alters tumor microcirculation, primarily affecting red blood cell flow and platelet adherence.
  • These findings suggest potential for SMFs in modulating tumor vascular function for diagnostic (MRI) and therapeutic purposes.