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Magnetic nanohelices swimming in an optical bowl

Patil, G and Vashist, E and Kakoty, H and Behera, J and Ghosh, A (2021) Magnetic nanohelices swimming in an optical bowl. In: Applied Physics Letters, 119 (1).

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Official URL: https://doi.org/10.1063/5.0058848


Magnetically driven helical nanoswimmers can impact many problems related to biology and medicine, such as intracellular manipulation, microsurgery, and drug delivery, and provide a promising platform for simulating and studying the physics of active matter. Crucial aspects of studying this powerful system pertain to their motion and dynamics under different physical conditions. In this paper, we demonstrate the confinement and controlled manipulation of magnetic nanohelices within an optical bowl formed by a defocused optical tweezer. The interaction of helical swimmers with the optical confinement was modeled and further confirmed by experiments. The results suggest that the combination of optical and magnetic forces can offer interesting avenues in the study of magnetic nanoswimmers, especially those related to micro-rheology and hydrodynamics. © 2021 Author(s).

Item Type: Journal Article
Publication: Applied Physics Letters
Publisher: American Institute of Physics Inc.
Additional Information: The copyright for this article belongs to American Institute of Physics Inc.
Keywords: Controlled drug delivery, Biology and medicine; Controlled manipulations; Magnetic force; Optical confinement; Physical conditions; Powerful systems, Magnetism
Department/Centre: Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 09 Dec 2021 09:29
Last Modified: 09 Dec 2021 09:29
URI: http://eprints.iisc.ac.in/id/eprint/69599

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