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Kellnberger, S. ; Rosenthal, A. ; Myklatun, A. ; Westmeyer, G.G. ; Sergiadis, G.* ; Ntziachristos, V.

Magnetoacoustic sensing of magnetic nanoparticles.

Phys. Rev. Lett. 116:108103 (2016)
Postprint DOI
Open Access Green
The interaction of magnetic nanoparticles and electromagnetic fields can be determined through electrical signal induction in coils due to magnetization. However, the direct measurement of instant electromagnetic energy absorption by magnetic nanoparticles, as it relates to particle characterization or magnetic hyperthermia studies, has not been possible so far. We introduce the theory of magnetoacoustics, predicting the existence of second harmonic pressure waves from magnetic nanoparticles due to energy absorption from continuously modulated alternating magnetic fields. We then describe the first magnetoacoustic system reported, based on a fiber-interferometer pressure detector, necessary for avoiding electric interference. The magnetoacoustic system confirmed the existence of previously unobserved second harmonic magnetoacoustic responses from solids, magnetic nanoparticles, and nanoparticle-loaded cells, exposed to continuous wave magnetic fields at different frequencies. We discuss how magnetoacoustic signals can be employed as a nanoparticle or magnetic field sensor for biomedical and environmental applications.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Iron-oxide Nanoparticles; Thermoacoustic Tomography; Fluid Hyperthermia; Remote-control; Field; Ultrasound; Delivery; Cells; Waves; Water
Sprache englisch
Veröffentlichungsjahr 2016
HGF-Berichtsjahr 2016
ISSN (print) / ISBN 0031-9007
e-ISSN 1079-7114
Zeitschrift Physical Review Letters
Quellenangaben Band: 116, Heft: 10, Seiten: , Artikelnummer: 108103 Supplement: ,
Verlag American Physical Society (APS)
Verlagsort College Pk
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Biological and Medical Imaging (IBMI)
POF Topic(s) 30205 - Bioengineering and Digital Health
30505 - New Technologies for Biomedical Discoveries
Forschungsfeld(er) Enabling and Novel Technologies
PSP-Element(e) G-505500-001
G-552000-001
DOI 10.1103/PhysRevLett.116.108103
WOS ID WOS:000371722500011
Scopus ID 84961159262
Erfassungsdatum 2016-04-02
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