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Open AccessArticle

On-Surface Locomotion of Particle Based Microrobots Using Magnetically Induced Oscillation

1
Department of Mechanical Engineering & Mechanics, Drexel University, Philadelphia, PA 19104, USA
2
Department of Mechanical Engineering, Southern Methodist University, Dallas, TX 75275, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Hyoung Jin Cho and Sung Kwon Cho
Micromachines 2017, 8(2), 46; https://doi.org/10.3390/mi8020046
Received: 1 December 2016 / Revised: 27 January 2017 / Accepted: 31 January 2017 / Published: 4 February 2017
(This article belongs to the Special Issue Bio-Inspired Micro/Nano Devices and Systems)
The low Reynolds number condition presents a fundamental constraint on designing locomotive mechanisms for microscale robots. We report on the use of an oscillating magnetic field to induce on-surface translational motion of particle based microrobots. The particle based microrobots consist of microparticles, connected in a chain-like manner using magnetic self-assembly, where the non-rigid connections between the particles provide structural flexibility for the microrobots. Following the scallop theorem, the oscillation of flexible bodies can lead to locomotion at low Reynolds numbers, similar to the beating motion of sperm flagella. We characterized the velocity profiles of the microrobots by measuring their velocities at various oscillating frequencies. We also demonstrated the directional steering capabilities of the microrobots. This work will provide insights into the use of oscillation as a viable mode of locomotion for particle based microrobots near a surface. View Full-Text
Keywords: microrobotics; magnetic control; low Reynolds number microrobotics; magnetic control; low Reynolds number
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MDPI and ACS Style

Cheang, UK.; Ali, J.; Kim, H.; Rogowski, L.; Kim, M.J. On-Surface Locomotion of Particle Based Microrobots Using Magnetically Induced Oscillation. Micromachines 2017, 8, 46. https://doi.org/10.3390/mi8020046

AMA Style

Cheang UK, Ali J, Kim H, Rogowski L, Kim MJ. On-Surface Locomotion of Particle Based Microrobots Using Magnetically Induced Oscillation. Micromachines. 2017; 8(2):46. https://doi.org/10.3390/mi8020046

Chicago/Turabian Style

Cheang, U K.; Ali, Jamel; Kim, Hoyeon; Rogowski, Louis; Kim, Min J. 2017. "On-Surface Locomotion of Particle Based Microrobots Using Magnetically Induced Oscillation" Micromachines 8, no. 2: 46. https://doi.org/10.3390/mi8020046

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