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Polymer-Based Wireless Resonant Magnetic Microrobots

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6 Author(s)
Hsi-Wen Tung ; Inst. of Robot. & Intell. Syst., ETH Zurich, Zurich, Switzerland ; Maffioli, M. ; Frutiger, D.R. ; Sivaraman, K.M.
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This paper presents a new generation of wireless resonant magnetic microactuator (WRMMA) type microrobot, named PolyMite. A polymer is used as a spring material in the design of the PolyMite. Compared with the previous generation of such devices, the use of a polymer, i.e., SU-8, as a spring material enables the design of a stable spring system without a significant increase in stiffness. A speed of over 20 mm/s (40 body lengths per second) was measured when the PolyMite was driven in air. Micromanipulation abilities of the PolyMites in wet environments have also been demonstrated. The agents were capable of transporting microobjects such as light polystyrene beads and heavier glass beads in water. The large output force, remote actuation, and biocompatible outer surface (SU-8 and gold) make the PolyMite an exciting candidate for biomedical applications.

Published in:

Robotics, IEEE Transactions on  (Volume:30 ,  Issue: 1 )

Date of Publication:

Feb. 2014

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