Dresden 2026 – scientific programme
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DY: Fachverband Dynamik und Statistische Physik
DY 44: Poster: Active Matter, Soft Matter, and Fluids
DY 44.11: Poster
Wednesday, March 11, 2026, 15:00–18:00, P5
Influence of shape on dynamic properties of magnetic active particles — •Ekaterina Novak1, Elena Pyanzina1, Tatyana Belyaeva1, and Sofia Kantorovich2 — 1Ekaterinburg, Russia — 2University of Vienna, Vienna, Austria
This study investigates the influence of shape on the dynamic properties of active magnetic particles. The focus is on ellipsoidal particles of two variations and spherical particles, aiming to understand the relationship between particle shape and motion characteristics. The research is motivated by the need to improve the control and efficiency of active particles, which have significant potential in medical and technological applications, such as precise drug delivery.
Active particles, inspired by natural systems like bacteria, can convert chemical energy into directed motion. However, challenges arise in maintaining precise control over their orientation and direction over time. By introducing a rigidly fixed permanent dipole moment and utilizing a strong external magnetic field, it is possible to minimize thermal fluctuations and achieve precise control.
The study also explores the anisotropic properties of ellipsoidal particles, which can have two possible orientations of the magnetic moment depending on the material. This behavior is analogous to magnetic cubes with integrated nanomotors. The findings from this research contribute to the development of optimal particle shapes for effective transportations, opening new possibilities in various fields.
The work was financially supported by the RSF grant No. 25-22-00327.
Keywords: dynamic properties; active ellipsoidal particles; computer simulations