6533b835fe1ef96bd129ffa1
RESEARCH PRODUCT
3D motion of flexible ferromagnetic filaments under a rotating magnetic field.
Andrejs CēbersGuntars KitenbergsAbdelqader Zabensubject
PhysicsRotating magnetic fieldCondensed matter physicsField (physics)Plane (geometry)FOS: Physical sciences02 engineering and technologyGeneral ChemistryCondensed Matter - Soft Condensed Matter021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesRodQuantitative Biology::Cell BehaviorProtein filamentQuantitative Biology::Subcellular ProcessesFerromagnetismCritical frequency0103 physical sciencesSoft Condensed Matter (cond-mat.soft)010306 general physics0210 nano-technologyMixing (physics)description
Ferromagnetic filaments in a rotating magnetic field are studied both numerically and experimentally. The filaments are made from micron-sized ferromagnetic particles linked with DNA strands. It is found that at low frequencies of the rotating field a filament rotates synchronously with the field and beyond a critical frequency it undergoes a transition to a three dimensional regime. In this regime the tips of the filament rotate synchronously with the field on circular trajectories in the plane parallel to the plane of the rotating field. The characteristics of this motion found numerically match the experimental data and allow us to obtain the physical properties of such filaments. We also discuss the differences in behaviour between magnetic rods and filaments and the applicability of filaments in mixing.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-03-08 | Soft matter |