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Gauging Nanoswimmer Dynamics via the Motion of Large Bodies

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Title
Gauging Nanoswimmer Dynamics via the Motion of Large Bodies
Author(s)
Ashwani Kr. Tripathi; Tsvi Tlusty
Publication Date
2022-12
Journal
Physical Review Letters, v.129, no.25
Publisher
American Physical Society
Abstract
© 2022 American Physical Society.Nanoswimmers are ubiquitous in biotechnology and nanotechnology but are extremely challenging to measure due to their minute size and driving forces. A simple method is proposed for detecting the elusive physical features of nanoswimmers by observing how they affect the motion of much larger, easily traceable particles. Modeling the swimmers as hydrodynamic force dipoles, we find direct, easy-to-calibrate relations between the observable power spectrum and diffusivity of the tracers and the dynamic characteristics of the swimmers - their force dipole moment and correlation times.
URI
https://pr.ibs.re.kr/handle/8788114/12489
DOI
10.1103/PhysRevLett.129.254502
ISSN
0031-9007
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > 1. Journal Papers (저널논문)
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