Micromanipulation using artificial bacterial flagella
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Date
2009
Publication Type
Conference Paper
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Abstract
Artificial bacterial flagella (ABF) are swimming microrobots that mimic the swimming motion of bacteria. The helical swimmer consists of an InGaAs/GaAs/Cr helical nanobelt tail fabricated by a self-scrolling technique with dimensions similar to a natural flagellum, and a thin soft-magnetic metal ¿head¿ consisting of a Cr/Ni/Au multi-layer. The swimming locomotion of ABF is precisely controlled in 3-D by external rotating magnetic fields. Microsphere manipulation is performed by ABF, and experimental results show that both the position and the orientation of microspheres can be precisely controlled. The propelling force of ABF is in the pico-Newton range. We also describe a swarm-like behavior in which three ABF swim in a pack, indicating the potential to handle several micro objects in parallel. Self-propelled devices such as these are candidates for wireless 6-DOF micro and nanomanipulation tools for handling cellular and sub-cellular objects.
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2009 IEEE/RSJ International Conference on Intelligent Robots and Systems
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Pages / Article No.
1401 - 1406
Publisher
IEEE
Event
22nd IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2009)
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03627 - Nelson, Bradley J. / Nelson, Bradley J.