Magnetic particles guided by ellipsoidal AC magnetic fields in a shallow viscous fluid: Controlling trajectories and chain lengths
We study the propulsion of superparamagnetic particles dispersed in a viscous fluid upon the application of an elliptically polarized rotating magnetic field. Reducing the fluid surface tension the particles sediment due to density mismatch and rotate close to the low recipient confining plate. We s...
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2017
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03048853_v444_n_p467_Jorge http://hdl.handle.net/20.500.12110/paper_03048853_v444_n_p467_Jorge |
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paper:paper_03048853_v444_n_p467_Jorge |
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paper:paper_03048853_v444_n_p467_Jorge2023-06-08T15:30:13Z Magnetic particles guided by ellipsoidal AC magnetic fields in a shallow viscous fluid: Controlling trajectories and chain lengths Chains Magnetic fields Magnetism Viscosity Viscous flow AC magnetic fields Hydrodynamic coupling Magnetic field vectors Magnetic particle Rotating magnetic fields Single particle Superparamagnetic particles Translational motions Magnetic bubbles We study the propulsion of superparamagnetic particles dispersed in a viscous fluid upon the application of an elliptically polarized rotating magnetic field. Reducing the fluid surface tension the particles sediment due to density mismatch and rotate close to the low recipient confining plate. We study the net translational motion arising from the hydrodynamic coupling with the plate and find that, above a cross over magnetic field, magnetically assembled doublets move faster than single particles. In turn, particles are driven in complex highly controlled trajectories by rotating the plane containing the magnetic field vector. The effect of the field rotation on long self assembled chains is discussed and the alternating breakup and reformation of the particle chains is described. © 2017 Elsevier B.V. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03048853_v444_n_p467_Jorge http://hdl.handle.net/20.500.12110/paper_03048853_v444_n_p467_Jorge |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Chains Magnetic fields Magnetism Viscosity Viscous flow AC magnetic fields Hydrodynamic coupling Magnetic field vectors Magnetic particle Rotating magnetic fields Single particle Superparamagnetic particles Translational motions Magnetic bubbles |
| spellingShingle |
Chains Magnetic fields Magnetism Viscosity Viscous flow AC magnetic fields Hydrodynamic coupling Magnetic field vectors Magnetic particle Rotating magnetic fields Single particle Superparamagnetic particles Translational motions Magnetic bubbles Magnetic particles guided by ellipsoidal AC magnetic fields in a shallow viscous fluid: Controlling trajectories and chain lengths |
| topic_facet |
Chains Magnetic fields Magnetism Viscosity Viscous flow AC magnetic fields Hydrodynamic coupling Magnetic field vectors Magnetic particle Rotating magnetic fields Single particle Superparamagnetic particles Translational motions Magnetic bubbles |
| description |
We study the propulsion of superparamagnetic particles dispersed in a viscous fluid upon the application of an elliptically polarized rotating magnetic field. Reducing the fluid surface tension the particles sediment due to density mismatch and rotate close to the low recipient confining plate. We study the net translational motion arising from the hydrodynamic coupling with the plate and find that, above a cross over magnetic field, magnetically assembled doublets move faster than single particles. In turn, particles are driven in complex highly controlled trajectories by rotating the plane containing the magnetic field vector. The effect of the field rotation on long self assembled chains is discussed and the alternating breakup and reformation of the particle chains is described. © 2017 Elsevier B.V. |
| title |
Magnetic particles guided by ellipsoidal AC magnetic fields in a shallow viscous fluid: Controlling trajectories and chain lengths |
| title_short |
Magnetic particles guided by ellipsoidal AC magnetic fields in a shallow viscous fluid: Controlling trajectories and chain lengths |
| title_full |
Magnetic particles guided by ellipsoidal AC magnetic fields in a shallow viscous fluid: Controlling trajectories and chain lengths |
| title_fullStr |
Magnetic particles guided by ellipsoidal AC magnetic fields in a shallow viscous fluid: Controlling trajectories and chain lengths |
| title_full_unstemmed |
Magnetic particles guided by ellipsoidal AC magnetic fields in a shallow viscous fluid: Controlling trajectories and chain lengths |
| title_sort |
magnetic particles guided by ellipsoidal ac magnetic fields in a shallow viscous fluid: controlling trajectories and chain lengths |
| publishDate |
2017 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03048853_v444_n_p467_Jorge http://hdl.handle.net/20.500.12110/paper_03048853_v444_n_p467_Jorge |
| _version_ |
1768545230849572864 |