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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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Article information


Submitted
09 May 2019
Accepted
11 Sep 2019
First published
11 Sep 2019

Mater. Horiz., 2020, Advance Article
Article type
Review Article

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., 2020, Advance Article , DOI: 10.1039/C9MH00714H

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