Magnetic Particle Trapping in a Branched Blood Vessel in the Presence of Magnetic Field

Samia F. Salem (Login required)
Department of Optics and Biophotonics, Saratov State University, Russia
Department of Physics, Faculty of Science, Benha University, Egypt

Valery V. Tuchin
Department of Optics and Biophotonics, Saratov State University, Russia
Interdisciplinary Laboratory of Biophotonics, National Research Tomsk State University, Russia
Laboratory of Molecular Imaging, Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russia

Paper #3395 received 17 Nov 2020; revised manuscript received 11 Dec 2020; accepted for publication 12 Dec 2020; published online 31 Dec 2020.

DOI: 10.18287/JBPE20.06.040302


This study presents a theoretical model by using the COMSOL Multiphysics® software to describe the behavior of magnetic nanoparticles through blood stream in a branched blood vessel under the influence of cylindrical permanent magnet that is located outside the vessel. The magnet is placed at one branched vessel to attract the magnetic particles towards targeted locations. The fluid (blood) is assumed being Newtonian; its flow is incompressible and laminar. Magnetic nanoparticles, such as superparamagnetic iron oxide (Fe3O4) nanoparticles are used in this theoretical study. The mechanisms of magnetic nanoparticles travelling in the blood stream under influence of a localized static magnetic field are numerically studied. The equations of motion for particles in the flow are governed by a combination of magnetic equations for the permanent magnetic field and the Navier-Stokes equations for fluid.


magnetic nanoparticles; branching vessels; permanent magnet; magnetism; Newtonian fluid; blood vessel; computational modeling

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