Detection of low density magnetic nanoparticles by Fluxset type magnetic probe

Gábor Vértesy, Antal Gasparics, József Pávó, Szabolcs Gyimóthy

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Abstract

Fluxset magnetic sensor based probes with a double exciting coil system have been developed for detecting weakly interacting, low mass and small size magnetic particles for biomedical application. The probe measures the magnetic response of particles to an AC excitation. Measurements were carried out on samples containing 20, 30 and 40 nm size nanoparticles, which were embedded in a cylinder containing aguar-aguar. It was shown that the probe can detect nanoparticles of 20 nm size if their concentration is at least 0.06 mg/mm3 from a distance of 1 mm with reliable signal to noise ratio. The probe detection was found to be improved after magnetization of particles.

Original languageEnglish
Pages (from-to)453-460
Number of pages8
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume52
Issue number1-2
DOIs
Publication statusPublished - 2016

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Keywords

  • low mass particle
  • Magnetic Fluxset sensor
  • magnetic nanoparticle
  • weak interaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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