Affiliations: [a] Institute of Technical Physics and Materials Science, Hungarian Academy of Sciences, Budapest, Hungary | [b] Department of Broadband Infocommunications and Electromagnetic Theory, Budapest University of Technology and Economics, Budapest, Hungary
Correspondence:
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Corresponding author: Gábor Vértesy, Institute of Technical Physics and Materials Science, Hungarian Academy of Sciences, Konkoly Thege Miklos ut 29-33, H-1121 Budapest, Hungary. E-mail:[email protected]
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.
Keywords: Magnetic Fluxset sensor, magnetic nanoparticle, weak interaction, low mass particle
