Gauging nanoswimmer dynamics via the motion of large bodies
Biological Physics
2022-12-28 v1 Soft Condensed Matter
Fluid Dynamics
Abstract
Nanoswimmers are ubiquitous in bio- and nano-technology 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.
Keywords
Cite
@article{arxiv.2210.07557,
title = {Gauging nanoswimmer dynamics via the motion of large bodies},
author = {Ashwani Kr. Tripathi and Tsvi Tlusty},
journal= {arXiv preprint arXiv:2210.07557},
year = {2022}
}
Comments
10 pages, 1 figure