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ELECTROMAGNETICALLY INDUCED DISTORTION OF A FIBRIN MATRIX WITH EMBEDDED MICROPARTICLES.

Tyler Scogin1, Sumith Yesudasan2, Mitchell L R Walker1

  • 1The Daniel Guggenheim School of Aerospace Engineering, College of Engineering, Georgia Institute of Technology, 270 Ferst Drive, Atlanta, GA, 30332-0150, USA. High-Power Electric Propulsion Laboratory, Georgia Institute of Technology, Department of Aerospace Engineering, 625 Lambert St NW, Atlanta, GA 30318, USA.

Journal of Mechanics in Medicine and Biology
|April 10, 2018
PubMed
Summary
This summary is machine-generated.

Researchers modeled fibrin clots with magnetic microparticles under magnetic fields. A 730 A/m field generated 36 nN force, causing plastic deformation, crucial for understanding clot mechanics in therapies.

Keywords:
Fibrin matrixelectromagnetic fieldfinite element analysismagnetic micro-particlesmechanical behavior

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Rheology

Background:

  • Blood clots are essential for hemostasis but can form pathologically in conditions like diabetes and sickle cell disease.
  • Fibrin structures with inclusions require mechanical modeling to understand their properties for developing advanced fibrin therapies.

Purpose of the Study:

  • To mechanically model fibrin matrices embedded with magnetic microparticles (MMPs) under an applied magnetic field.
  • To determine the magnetic field strength required to induce plastic deformation in fibrin clots containing MMPs.

Main Methods:

  • Utilized finite element (FE) analysis to simulate a fibrin mechanical system with MMPs.
  • Estimated electromagnetic force from an electromagnet and coupled it with gravity.
  • Calculated stresses and displacements within the fibrin clot under applied forces.

Main Results:

  • An applied magnetic field of 730 A/m on the fibrin surface generated an electromagnetic force of 36 nN.
  • This calculated force was sufficient to induce plastic deformation within the fibrin clot containing MMPs.
  • FE analysis provided quantitative insights into the mechanical response of fibrin clots to magnetic stimulation.

Conclusions:

  • The study successfully modeled the mechanical behavior of fibrin clots with MMPs under magnetic fields.
  • Specific magnetic field parameters were identified as necessary to achieve plastic deformation, informing future therapeutic designs.
  • This research contributes to the understanding of fibrin clot mechanics, essential for developing targeted fibrin-based therapies.