Controlled torque on superparamagnetic beads for functional biosensors

X.J.A. Janssen; A.J. Schellekens; K. van Ommering; L.J. IJzendoorn, van; M.W.J. Prins

doi:10.1016/j.bios.2008.09.024

Controlled torque on superparamagnetic beads for functional biosensors

X.J.A. Janssen
, A.J. Schellekens
, K. van Ommering
, L.J. IJzendoorn, van
, M.W.J. Prins

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

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Abstract

We demonstrate that a rotating magnetic field can be used to apply a controlled torque on superparamagnetic beads which leads to a tunable bead rotation frequency in fluid. Smooth rotation is obtained for field rotation frequencies many orders of magnitude higher than the bead rotation frequency. A quantitative model is developed, based on results from a comprehensive set of experiments at different field strengths and frequencies. At low frequencies (

Original language	English
Pages (from-to)	1937-1941
Number of pages	5
Journal	Biosensors and Bioelectronics
Volume	24
Issue number	7
DOIs	https://doi.org/10.1016/j.bios.2008.09.024
Publication status	Published - 2009

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10.1016/j.bios.2008.09.024

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title = "Controlled torque on superparamagnetic beads for functional biosensors",

abstract = "We demonstrate that a rotating magnetic field can be used to apply a controlled torque on superparamagnetic beads which leads to a tunable bead rotation frequency in fluid. Smooth rotation is obtained for field rotation frequencies many orders of magnitude higher than the bead rotation frequency. A quantitative model is developed, based on results from a comprehensive set of experiments at different field strengths and frequencies. At low frequencies (",

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AU - Janssen, X.J.A.

AU - Schellekens, A.J.

AU - van Ommering, K.

AU - IJzendoorn, van, L.J.

AU - Prins, M.W.J.

PY - 2009

Y1 - 2009

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AB - We demonstrate that a rotating magnetic field can be used to apply a controlled torque on superparamagnetic beads which leads to a tunable bead rotation frequency in fluid. Smooth rotation is obtained for field rotation frequencies many orders of magnitude higher than the bead rotation frequency. A quantitative model is developed, based on results from a comprehensive set of experiments at different field strengths and frequencies. At low frequencies (

U2 - 10.1016/j.bios.2008.09.024

DO - 10.1016/j.bios.2008.09.024

M3 - Article

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VL - 24

SP - 1937

EP - 1941

JO - Biosensors and Bioelectronics

JF - Biosensors and Bioelectronics

IS - 7

ER -

Controlled torque on superparamagnetic beads for functional biosensors

Abstract

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