» Articles » PMID: 37512631

Velocity and Out-Step Frequencies for a Micro-Swimmer Based on Spiral Carbon Nanotubes

Overview
Publisher MDPI
Date 2023 Jul 29
PMID 37512631
Authors
Affiliations
Soon will be listed here.
Abstract

The existing producing processes of micro spiral swimmers are complex. Here, a microswimmer with a magnetic layer on the surface of the spiral carbon nanotubes is proposed, which has a simple producing process. For the microswimmer, its equations of the velocities and out-step frequency are deduced. Using these equations, the velocities and out-step frequency of the microswimmer and their changes with related parameters are investigated. Results show that its velocities are proportional to the radius and helix angle of the spiral carbon nanotubes, and its out-step frequencies are proportional to magnetic field strength, the helix angle and magnetic layer thicknesses of the spiral carbon nanotubes, and inversely proportional to the fluid viscosity. The out-step frequency of the microswimmer is measured, which is in good agreement with the calculative ones.

References
1.
Kadiri V, Gunther J, Kottapalli S, Goyal R, Peter F, Alarcon-Correa M . Light- and magnetically actuated FePt microswimmers. Eur Phys J E Soft Matter. 2021; 44(6):74. PMC: 8172516. DOI: 10.1140/epje/s10189-021-00074-1. View

2.
Hashemi Shabestari M, Meijering A, Roos W, Wuite G, Peterman E . Recent Advances in Biological Single-Molecule Applications of Optical Tweezers and Fluorescence Microscopy. Methods Enzymol. 2017; 582:85-119. DOI: 10.1016/bs.mie.2016.09.047. View

3.
Walker D, Kubler M, Morozov K, Fischer P, Leshansky A . Optimal Length of Low Reynolds Number Nanopropellers. Nano Lett. 2015; 15(7):4412-6. DOI: 10.1021/acs.nanolett.5b01925. View

4.
Liu L, Wu J, Chen B, Gao J, Li T, Ye Y . Magnetically Actuated Biohybrid Microswimmers for Precise Photothermal Muscle Contraction. ACS Nano. 2022; 16(4):6515-6526. DOI: 10.1021/acsnano.2c00833. View

5.
Tottori S, Zhang L, Qiu F, Krawczyk K, Franco-Obregon A, Nelson B . Magnetic helical micromachines: fabrication, controlled swimming, and cargo transport. Adv Mater. 2012; 24(6):811-6. DOI: 10.1002/adma.201103818. View