2016/04/13 by Fernando Martínez‐Pedrero, Martinez-Pedrero, Fernando, A. Cēbers +3
Engineering · Physics and Astronomy · #Characterization and Applications of Magnetic Nanoparticles #FOS: Physical sciences #Micro and Nano Robotics #Microfluidic and Bio-sensing Technologies #Soft Condensed Matter (cond-mat.soft)
paper · pdf · doi:10.48550/arxiv.1604.03895
openalex publication_date 2016/04/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the formation and dynamics of dipolar rings composed by microscopic\nferromagnetic ellipsoids, which self-assemble in water by switching the\ndirection of the applied field. We show how to manipulate these fragile\nstructures and control their shape via application of external static and\noscillating magnetic fields. We introduce a theoretical framework which\ndescribes the ring deformation under an applied field, allowing to understand\nthe underlying physical mechanism. Our microscopic rings are finally used to\ncapture, entrap and later release a biological cell via magnetic command, i.e.\nperforming a simple operation which can be implemented in other microfluidic\ndevices which make use of ferromagnetic particles.\n