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Recent advances in manipulation of micro- and nano-objects with magnetic fields at small scales

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Abstract

Manipulation of micro- and nano-objects has been widely studied in the past two decades due to its potential applications in various fields. In this review, we focus primarily on magnetic field-based manipulation techniques, which have shown to be extremely promising for the motion control of such objects at small scales. We start from the fundamental analysis of the magnetic forces and the torques acting on objects subjected to magnetic fields, and then summarize the most recent contributions in magnetic manipulation employed in four typical applications: micro-mixing, trapping, colloidal assembly, and object transport. Moreover, how magnetic fields can be applied to object manipulation and the physical principles underlying these manipulation processes are highlighted.

Graphical abstract: Recent advances in manipulation of micro- and nano-objects with magnetic fields at small scales

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Publication details

The article was received on 09 May 2019, accepted on 11 Sep 2019 and first published on 11 Sep 2019


Article type: Review Article
DOI: 10.1039/C9MH00714H
Mater. Horiz., 2019, Advance Article

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    Recent advances in manipulation of micro- and nano-objects with magnetic fields at small scales

    Q. Cao, Q. Fan, Q. Chen, C. Liu, X. Han and L. Li, Mater. Horiz., 2019, Advance Article , DOI: 10.1039/C9MH00714H

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