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Simultaneous and independent topological control of identical microparticles in non-periodic energy landscapes

Title data

Stuhlmüller, Nico C. X. ; Farrokhzad, Farzaneh ; Kuświk, Piotr ; Stobiecki, Feliks ; Urbaniak, Maciej ; Akhundzada, Sapida ; Ehresmann, Arno ; Fischer, Thomas ; de las Heras, Daniel:
Simultaneous and independent topological control of identical microparticles in non-periodic energy landscapes.
In: Nature Communications. Vol. 14 (2023) . - 7517.
ISSN 2041-1723
DOI: https://doi.org/10.1038/s41467-023-43390-0

Official URL: Volltext

Project information

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Project financing: DFG project 440764520 and 531559581

Abstract in another language

Topological protection ensures stability of information and particle transport against perturbations. We explore experimentally and computationally the topologically protected transport of magnetic colloids above spatially inhomogeneous magnetic patterns, revealing that transport complexity can be encoded in both the driving loop and the pattern. Complex patterns support intricate transport modes when the microparticles are subjected to simple time-periodic loops of a uniform magnetic field. We design a pattern featuring a topological defect that functions as an attractor or a repeller of microparticles, as well as a pattern that directs microparticles along a prescribed complex trajectory. Using simple patterns and complex loops, we simultaneously and independently control the motion of several identical microparticles differing only in their positions above the pattern. Combining complex patterns and complex loops we transport microparticles from unknown locations to predefined positions and then force them to follow arbitrarily complex trajectories concurrently. Our findings pave the way for new avenues in transport control and dynamic self-assembly in colloidal science.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: 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
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 21 Nov 2023 06:52
Last Modified: 13 Mar 2024 09:33
URI: https://eref.uni-bayreuth.de/id/eprint/87815