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Simultaneous polydirectional transport of colloidal bipeds

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00005337
URN to cite this document: urn:nbn:de:bvb:703-epub-5337-8

Title data

Mirzaee-Kakhki, Mahla ; Ernst, Adrian ; de las Heras, Daniel ; Urbaniak, Maciej ; Stobiecki, Feliks ; Gördes, Jendrik ; Reginka, Meike ; Ehresmann, Arno ; Fischer, Thomas M.:
Simultaneous polydirectional transport of colloidal bipeds.
In: Nature Communications. Vol. 11 (16 September 2020) . - No. 4670.
ISSN 2041-1723
DOI der Verlagsversion: https://doi.org/10.1038/s41467-020-18467-9

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Abstract

Detailed control over the motion of colloidal particles is relevant in many applications in colloidal science such as lab-on-a-chip devices. Here, we use an external magnetic field to assemble paramagnetic colloidal spheres into colloidal rods of several lengths. The rods reside above a square magnetic pattern and are transported via modulation of the direction of the external magnetic field. The rods behave like bipeds walking above the pattern. Depending on their length, the bipeds perform topologically distinct classes of protected walks. We design parallel polydirectional modulation loops of the external field that command up to six classes of bipeds to walk on distinct predesigned paths. Using such loops, we induce the collision of reactant bipeds, their polymerization addition reaction to larger bipeds, the separation of product bipeds from the educts, the sorting of different product bipeds, and also the parallel writing of a word consisting of several letters. Our ideas and methodology might be transferred to other systems for which topological protection is at work.

Further data

Item Type: Article in a journal
Keywords: materials science; physics
DDC Subjects: 500 Science > 530 Physics
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics II
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Professor Experimental Physics X > Professor Experimental Physics X - Univ.-Prof. Dr. Thomas Fischer
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Professor Experimental Physics X
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-5337-8
Date Deposited: 17 Mar 2021 11:38
Last Modified: 19 Mar 2021 10:55
URI: https://epub.uni-bayreuth.de/id/eprint/5337

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