Magnetic microkayaks: Propulsion of microrods precessing near a surface by kilohertz frequency, rotating magnetic fields

L. O. Mair; B. A. Evans; A. Nacev; P. Y. Stepanov; R. Hilaman; S. Chowdhury; S. Jafari; W. Wang; B. Shapiro; I. N. Weinberg

doi:10.1039/c6nr09459g

Magnetic microkayaks: Propulsion of microrods precessing near a surface by kilohertz frequency, rotating magnetic fields

L. O. Mair^*
, B. A. Evans
, A. Nacev
, P. Y. Stepanov
, R. Hilaman
, S. Chowdhury
, S. Jafari
, W. Wang
, B. Shapiro
, I. N. Weinberg

^*Corresponding author for this work

Weinberg Medical Physics
Elon University
Harbin Institute of Technology (Shenzhen)
Institute for Basic Science
University of Maryland, College Park

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

Surface-swimming nano- and micromotors hold significant potential for on-chip mixing, flow generation, sample manipulation, and microrobotics. Here we describe rotating microrods magnetized nearly orthogonally to their long axes. When actuated near a solid surface, these microrods demonstrate precessing motion, with rods describing a double cone similar to the motion of a kayaker's paddle. The precessing motion induces translation. At 1 kHz, these "microkayaks" move at translational velocities of ≈14 μm s^-1 and generate advective flows up to 10 μm s^-1.

Original language	English
Pages (from-to)	3375-3381
Number of pages	7
Journal	Nanoscale
Volume	9
Issue number	10
DOIs	https://doi.org/10.1039/c6nr09459g
State	Published - 14 Mar 2017
Externally published	Yes

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title = "Magnetic microkayaks: Propulsion of microrods precessing near a surface by kilohertz frequency, rotating magnetic fields",

abstract = "Surface-swimming nano- and micromotors hold significant potential for on-chip mixing, flow generation, sample manipulation, and microrobotics. Here we describe rotating microrods magnetized nearly orthogonally to their long axes. When actuated near a solid surface, these microrods demonstrate precessing motion, with rods describing a double cone similar to the motion of a kayaker's paddle. The precessing motion induces translation. At 1 kHz, these {"}microkayaks{"} move at translational velocities of ≈14 μm s-1 and generate advective flows up to 10 μm s-1.",

author = "Mair, \{L. O.\} and Evans, \{B. A.\} and A. Nacev and Stepanov, \{P. Y.\} and R. Hilaman and S. Chowdhury and S. Jafari and W. Wang and B. Shapiro and Weinberg, \{I. N.\}",

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doi = "10.1039/c6nr09459g",

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T1 - Magnetic microkayaks

T2 - Propulsion of microrods precessing near a surface by kilohertz frequency, rotating magnetic fields

AU - Mair, L. O.

AU - Evans, B. A.

AU - Nacev, A.

AU - Stepanov, P. Y.

AU - Hilaman, R.

AU - Chowdhury, S.

AU - Jafari, S.

AU - Wang, W.

AU - Shapiro, B.

AU - Weinberg, I. N.

PY - 2017/3/14

Y1 - 2017/3/14

N2 - Surface-swimming nano- and micromotors hold significant potential for on-chip mixing, flow generation, sample manipulation, and microrobotics. Here we describe rotating microrods magnetized nearly orthogonally to their long axes. When actuated near a solid surface, these microrods demonstrate precessing motion, with rods describing a double cone similar to the motion of a kayaker's paddle. The precessing motion induces translation. At 1 kHz, these "microkayaks" move at translational velocities of ≈14 μm s-1 and generate advective flows up to 10 μm s-1.

AB - Surface-swimming nano- and micromotors hold significant potential for on-chip mixing, flow generation, sample manipulation, and microrobotics. Here we describe rotating microrods magnetized nearly orthogonally to their long axes. When actuated near a solid surface, these microrods demonstrate precessing motion, with rods describing a double cone similar to the motion of a kayaker's paddle. The precessing motion induces translation. At 1 kHz, these "microkayaks" move at translational velocities of ≈14 μm s-1 and generate advective flows up to 10 μm s-1.

UR - https://www.scopus.com/pages/publications/85014961505

U2 - 10.1039/c6nr09459g

DO - 10.1039/c6nr09459g

M3 - 文章

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AN - SCOPUS:85014961505

SN - 2040-3364

VL - 9

SP - 3375

EP - 3381

JO - Nanoscale

JF - Nanoscale

IS - 10

ER -

Magnetic microkayaks: Propulsion of microrods precessing near a surface by kilohertz frequency, rotating magnetic fields

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