Cancelling stray magnetic fields to render magnetic nanobots autonomous

Patil, G and Mandal, P and Behera, J and Ajith, A and Ghosh, A (2022) Cancelling stray magnetic fields to render magnetic nanobots autonomous. In: 5th International Conference on Manipulation, Automation, and Robotics at Small Scales, MARSS 2022, 25 - 29 July 2022.

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Abstract

Magnetic nanobots are of great technological importance due to their benign actuation method, bio-compatibility and medium-independent behaviour. They can be driven to propel in a particular direction using external magnetic fields. They can also be self-propelled under certain conditions where orientations of the nanobots remain independent of the energy input, implying individual entities behave independently of each other. The latter requires a precise magnetic field design, which, as we show here, is non-trivial experimentally. Specifically, the induced or stray magnetic fields in the plane of the nanobot motion can hinder autonomous motion altogether. We address the technique used to eliminate these unnecessary magnetic fields in two ways and especially highlight a method based on analyzing the trajectories of the nanobots. © 2022 IEEE.

Item Type:	Conference Paper
Publication:	Proceedings of MARSS 2022 - 5th International Conference on Manipulation, Automation, and Robotics at Small Scales
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Nanotechnology, Actuation methods; Bio-compatibility; Bio-media; Condition; Energy inputs; External magnetic field; Magnetic field design; Media independent; Nanobots; Stray magnetic fields, Magnetic fields
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering Division of Physical & Mathematical Sciences > Physics
Date Deposited:	17 Oct 2022 10:25
Last Modified:	17 Oct 2022 10:25
URI:	https://eprints.iisc.ac.in/id/eprint/77449

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