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Magnetic active matter across scales

Francisca Guzmán‐Lastra, Margaret Rosenberg, Marco Musacchio, Lorenzo Caprini, Hartmut Löwen
August 12, 2026
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Research Abstract & Technology Focus

Magnetic interactions provide a versatile and powerful tool for controlling and organizing active matter, where individual units continuously consume energy to drive autonomous motion. These interactions arise naturally in biological systems, such as magnetotactic bacteria, and can be engineered into synthetic platforms, including colloidal microswimmers, magnetic nanoparticles, and macroscopic granular robots. This review focuses on active, self-propelled particles that carry an intrinsic magnetic dipole moment, powered by their own energy consumption rather than driven by external fields; here, the dipole moment mediates interactions and self-organization, not propulsion. We survey experimental and theoretical studies across all length scales, showing how dipolar interactions shape single-particle dynamics, collective behavior, and self-organization. We discuss models incorporating pairwise dipolar forces and confinement, and examine emergent phenomena such as chaining, swarming, and tunable pattern formation. We close by outlining challenges and opportunities in the design, control, and application of magnetic active systems, from programmable materials and biomedical actuation to nonequilibrium physics.
Active matter Dipole Physics Non-equilibrium thermodynamics Magnetic moment Nanotechnology
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Magnetic active matter across scales

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This literature focuses on: Magnetic interactions provide a versatile and powerful tool for controlling and organizing active matter, where individual units continuously consume energy to drive autonomous motion. These interactions arise naturally in biological systems, such...

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Yes, highly correlated activity was mapped. An entry titled 'Magnetic active matter across scales' discusses this: Magnetic interactions provide a versatile and powerful tool for controlling and organizing active matter, where individual units continuously consu...

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Yes, highly correlated activity was mapped. An entry titled 'Active Matter' discusses this: Active matter research is expanding across biological systems, synthetic micromotor arrays, and material science, demonstrating its influence on co...

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