Manipulation of permanent magnetic polymer micro-robots: a new approach towards guided wireless capsule endoscopy

D. Hilbich; A. Rahbar; A. Khosla; B. L. Gray

doi:10.1117/12.979250

24 October 2012 Manipulation of permanent magnetic polymer micro-robots: a new approach towards guided wireless capsule endoscopy

D. Hilbich, A. Rahbar, A. Khosla, B. L. Gray

Author Affiliations +

Proceedings Volume 8548, Nanosystems in Engineering and Medicine; 85482I (2012) https://doi.org/10.1117/12.979250
Event: SPIE Nanosystems in Engineering + Medicine, 2012, Incheon, Korea, Republic of

Abstract

We present the initial experimental results for manipulating micro-robots featuring permanent magnetic polymer magnets for guided wireless endoscopy applications. The magnetic polymers are fabricated by doping polydimethylsiloxane (PDMS) with permanent isotropic rare earth magnetic powder (MQFP 12-5) with an average particle size of 6 μm. The prepared magnetic nanocomposite polymer (M-NCP) is patterned in the desired shape against a plexiglass mold via soft lithography techniques. It is observed that the fabricated micro-robot magnets have a magnetic field strength of 50 mT and can easily be actuated by applying a field of 8.3 mT (field measured at the capsule’s position) and moved at a rate of 5 inches/second.

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D. Hilbich, A. Rahbar, A. Khosla, and B. L. Gray "Manipulation of permanent magnetic polymer micro-robots: a new approach towards guided wireless capsule endoscopy", Proc. SPIE 8548, Nanosystems in Engineering and Medicine, 85482I (24 October 2012); https://doi.org/10.1117/12.979250

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