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  Optimal length of low reynolds number nanopropellers

Walker (Schamel), D., Kuebler, M., Morozov, K. I., Fischer, P., & Leshansky, A. M. (2015). Optimal length of low reynolds number nanopropellers. Nano Letters, 15(7), 4412-4416. doi:10.1021/acs.nanolett.5b01925.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000B-0B35-E Version Permalink: https://hdl.handle.net/21.11116/0000-000E-4B1B-1
Genre: Journal Article

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NanoLett_15_2015_4412.pdf (Any fulltext), 3MB
 
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NanoLett_15_2015_4412_suppl.pdf (Supplementary material), 131KB
 
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https://pubs.acs.org/doi/10.1021/acs.nanolett.5b01925 (Any fulltext)
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 Creators:
Walker (Schamel), Debora, Author
Kuebler, M., Author
Morozov, K. I., Author
Fischer, Peer1, Author                 
Leshansky, A. M., Author
Affiliations:
1Max Planck Institute for Medical Research, Max Planck Society, ou_1125545              

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Free keywords: Nanopropellers; magnetic nanomotors; microswimmers; viscous hydrodynamics; rotating magnetic field; glancing angle deposition (GLAD)
 Abstract: Locomotion in fluids at the nanoscale is dominated by viscous drag. One efficient propulsion scheme is to use a weak rotating magnetic field that drives a chiral object. From bacterial flagella to artificial drills, the corkscrew is a universally useful chiral shape for propulsion in viscous environments. Externally powered magnetic micro- and nanomotors have been recently developed that allow for precise fuel-free propulsion in complex media. Here, we combine analytical and numerical theory with experiments on nanostructured screw-propellers to show that the optimal length is surprisingly short–only about one helical turn, which is shorter than most of the structures in use to date. The results have important implications for the design of artificial actuated nano- and micropropellers and can dramatically reduce fabrication times, while ensuring optimal performance.

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Language(s): eng - English
 Dates: 2015-06-012015-02-232015-06-012015
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.nanolett.5b01925
BibTex Citekey: ISI:000357964100026
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Title: Nano Letters
  Abbreviation : Nano Lett.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 15 (7) Sequence Number: - Start / End Page: 4412 - 4416 Identifier: ISSN: 1530-6984
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570403