Tweezing of Magnetic and Non-Magnetic Objects with Magnetic Fields

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Tweezing of Magnetic and Non-Magnetic Objects with Magnetic Fields. / Timonen, Jaakko V I; Grzybowski, Bartosz A.

In: Advanced Materials, Vol. 29, No. 18, 1603516, 2017, p. 1-17.

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Timonen, Jaakko V I ; Grzybowski, Bartosz A. / Tweezing of Magnetic and Non-Magnetic Objects with Magnetic Fields. In: Advanced Materials. 2017 ; Vol. 29, No. 18. pp. 1-17.

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@article{66b2451b01a7474598a43a7b4f1f1179,
title = "Tweezing of Magnetic and Non-Magnetic Objects with Magnetic Fields",
abstract = "Although strong magnetic fields cannot be conveniently {"}focused{"} like light, modern microfabrication techniques enable preparation of microstructures with which the field gradients - and resulting magnetic forces - can be localized to very small dimensions. This ability provides the foundation for magnetic tweezers which in their classical variant can address magnetic targets. More recently, the so-called negative magnetophoretic tweezers have also been developed which enable trapping and manipulations of completely nonmagnetic particles provided that they are suspended in a high-magnetic-susceptibility liquid. These two modes of magnetic tweezing are complimentary techniques tailorable for different types of applications. This Progress Report provides the theoretical basis for both modalities and illustrates their specific uses ranging from the manipulation of colloids in 2D and 3D, to trapping of living cells, control of cell function, experiments with single molecules, and more.",
keywords = "Magnetic tweezing, Magnetofluidic tweezing, Microfabrication, Paramagnetic solutions, Self-assembly",
author = "Timonen, {Jaakko V I} and Grzybowski, {Bartosz A.}",
year = "2017",
doi = "10.1002/adma.201603516",
language = "English",
volume = "29",
pages = "1--17",
journal = "Advanced Materials",
issn = "0935-9648",
number = "18",

}

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TY - JOUR

T1 - Tweezing of Magnetic and Non-Magnetic Objects with Magnetic Fields

AU - Timonen, Jaakko V I

AU - Grzybowski, Bartosz A.

PY - 2017

Y1 - 2017

N2 - Although strong magnetic fields cannot be conveniently "focused" like light, modern microfabrication techniques enable preparation of microstructures with which the field gradients - and resulting magnetic forces - can be localized to very small dimensions. This ability provides the foundation for magnetic tweezers which in their classical variant can address magnetic targets. More recently, the so-called negative magnetophoretic tweezers have also been developed which enable trapping and manipulations of completely nonmagnetic particles provided that they are suspended in a high-magnetic-susceptibility liquid. These two modes of magnetic tweezing are complimentary techniques tailorable for different types of applications. This Progress Report provides the theoretical basis for both modalities and illustrates their specific uses ranging from the manipulation of colloids in 2D and 3D, to trapping of living cells, control of cell function, experiments with single molecules, and more.

AB - Although strong magnetic fields cannot be conveniently "focused" like light, modern microfabrication techniques enable preparation of microstructures with which the field gradients - and resulting magnetic forces - can be localized to very small dimensions. This ability provides the foundation for magnetic tweezers which in their classical variant can address magnetic targets. More recently, the so-called negative magnetophoretic tweezers have also been developed which enable trapping and manipulations of completely nonmagnetic particles provided that they are suspended in a high-magnetic-susceptibility liquid. These two modes of magnetic tweezing are complimentary techniques tailorable for different types of applications. This Progress Report provides the theoretical basis for both modalities and illustrates their specific uses ranging from the manipulation of colloids in 2D and 3D, to trapping of living cells, control of cell function, experiments with single molecules, and more.

KW - Magnetic tweezing

KW - Magnetofluidic tweezing

KW - Microfabrication

KW - Paramagnetic solutions

KW - Self-assembly

UR - http://www.scopus.com/inward/record.url?scp=85013236839&partnerID=8YFLogxK

U2 - 10.1002/adma.201603516

DO - 10.1002/adma.201603516

M3 - Article

VL - 29

SP - 1

EP - 17

JO - Advanced Materials

JF - Advanced Materials

SN - 0935-9648

IS - 18

M1 - 1603516

ER -

ID: 11090697