Magneto-optical detection of magnetic nanobeads in a microfluidic channel

Marco Donolato, Paolo Vavassori, Mikkel Fougt Hansen

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Abstract

We report on the measurement of the Browinan relaxation frequency of a magnetic nanobeads suspension in microfluidic system using a novel magneto-optical method. We demonstrate that by lock-in analysis of the signal produced on a photodetector by the light transmitted through the particle suspension excited by an uniaxial AC magnetic field, it is possible to precisely record the frequency response of commercial magnetic nanobeads in a microfluidic channel.
Original languageEnglish
Title of host publicationProceedings of the 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Publication date2013
Pages272-274
ISBN (Print)978-0-9798064-6-9
Publication statusPublished - 2013
Event17th International Conference on Miniaturized Systems for Chemistry and Life Sciences - Freiberg, Germany
Duration: 27 Oct 201331 Oct 2013
Conference number: 17
http://www.microtas2013.org/

Conference

Conference17th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Number17
CountryGermany
CityFreiberg
Period27/10/201331/10/2013
Internet address

Keywords

  • Magnetic nanobeads
  • Optical biosensing

Cite this

Donolato, M., Vavassori, P., & Hansen, M. F. (2013). Magneto-optical detection of magnetic nanobeads in a microfluidic channel. In Proceedings of the 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences (pp. 272-274). Chemical and Biological Microsystems Society.