Magnetic nanoparticles for enhancing the effectiveness of ultrasonic hyperthermia

A. Józefczak, K. Kaczmarek, T. Hornowski, M. Kubovcikov, Z. Rozynek, M. Timko, A. Skumiel

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Ultrasonic hyperthermia is a method of cancer treatment in which tumors are exposed to an elevated cytotoxic temperature using ultrasound (US). In conventional ultrasonic hyperthermia, the ultrasound-induced heating in the tumor is achieved through the absorption of wave energy. However, to obtain appropriate temperature in reasonable time, high US intensities, which can have a negative impact on healthy tissues, are required. The effectiveness of US for medical purposes can be significantly improved by using the so-called sonosensitizers, which can enhance the thermal effect of US on the tissue by increasing US absorption. One possible candidate for such sonosensitizers is magnetic nanoparticles with mean sizes of 10–300 nm, which can be efficiently heated because of additional attenuation and scattering of US. Additionally, magnetic nanoparticles are able to produce heat in the alternating magnetic field (magnetic hyperthermia). The synergetic application of ultrasonic and magnetic hyperthermia can lead to a promising treatment modality.
Original languageEnglish
Article number263701
Number of pages5
JournalApplied Physics Letters
Publication statusPublished - 27 Jun 2016


  • thermal instruments
  • cancer treatment
  • ultrasonic hyperthermia
  • ultrasonics
  • ultrasound
  • nanopartIcles
  • magnetic fields

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