Versatile microrobotics using simple modular subunits

U. Kei Cheang, Farshad Meshkati, Hoyeon Kim, Kyoungwoo Lee, Henry Chien Fu, Min Jun Kim

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The realization of reconfigurable modular microrobots could aid drug delivery and microsurgery by allowing a single system to navigate diverse environments and perform multiple tasks. So far, microrobotic systems are limited by insufficient versatility; for instance, helical shapes commonly used for magnetic swimmers cannot effectively assemble and disassemble into different size and shapes. Here by using microswimmers with simple geometries constructed of spherical particles, we show how magnetohydrodynamics can be used to assemble and disassemble modular microrobots with different physical characteristics. We develop a mechanistic physical model that we use to improve assembly strategies. Furthermore, we experimentally demonstrate the feasibility of dynamically changing the physical properties of microswimmers through assembly and disassembly in a controlled fluidic environment. Finally, we show that different configurations have different swimming properties by examining swimming speed dependence on configuration size.

Original languageEnglish
Article number30472
JournalScientific reports
Volume6
DOIs
Publication statusPublished - 2016 Jul 28

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assembly
fluidics
versatility
configurations
magnetohydrodynamics
delivery
drugs
physical properties
geometry

All Science Journal Classification (ASJC) codes

  • General

Cite this

Cheang, U. K., Meshkati, F., Kim, H., Lee, K., Fu, H. C., & Kim, M. J. (2016). Versatile microrobotics using simple modular subunits. Scientific reports, 6, [30472]. https://doi.org/10.1038/srep30472
Cheang, U. Kei ; Meshkati, Farshad ; Kim, Hoyeon ; Lee, Kyoungwoo ; Fu, Henry Chien ; Kim, Min Jun. / Versatile microrobotics using simple modular subunits. In: Scientific reports. 2016 ; Vol. 6.
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Cheang, UK, Meshkati, F, Kim, H, Lee, K, Fu, HC & Kim, MJ 2016, 'Versatile microrobotics using simple modular subunits', Scientific reports, vol. 6, 30472. https://doi.org/10.1038/srep30472

Versatile microrobotics using simple modular subunits. / Cheang, U. Kei; Meshkati, Farshad; Kim, Hoyeon; Lee, Kyoungwoo; Fu, Henry Chien; Kim, Min Jun.

In: Scientific reports, Vol. 6, 30472, 28.07.2016.

Research output: Contribution to journalArticle

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