Forced‐ and Self‐Rotation of Magnetic Nanorods Assembly at the Cell Membrane: A Biomagnetic Torsion Pendulum |
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| Authors: | François Mazuel Samuel Mathieu Riccardo Di Corato Jean‐Claude Bacri Thierry Meylheuc Teresa Pellegrino Myriam Reffay Claire Wilhelm |
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| Affiliation: | 1. Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, CNRS and Université Paris Diderot, Paris Cedex 05, France;2. Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, Lecce, Italy;3. Micalis Institute INRA, AgroParisTech, Université Paris‐Saclay, Jouy‐en‐Josas, France;4. Istituto Italiano di Tecnologia, Genoa, Italy |
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| Abstract: | In order to provide insight into how anisotropic nano‐objects interact with living cell membranes, and possibly self‐assemble, magnetic nanorods with an average size of around 100 nm × 1 µm are designed by assembling iron oxide nanocubes within a polymeric matrix under a magnetic field. The nano–bio interface at the cell membrane under the influence of a rotating magnetic field is then explored. A complex structuration of the nanorods intertwined with the membranes is observed. Unexpectedly, after a magnetic rotating stimulation, the resulting macrorods are able to rotate freely for multiple rotations, revealing the creation of a biomagnetic torsion pendulum. |
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| Keywords: | assembly magnetic nanorods membranes rotating magnetic field |
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