Hyperthermia induction with thermally self-regulated ferromagnetic implants.


We have developed a self-regulating thermoseed for interstitial hyperthermia treatment of tumors. The seeds are made of a 70.4% nickel-29.6% copper alloy, and they have a Curie point at 50 degrees C. When exposed to an oscillating magnetic field (90 kHz, 50 Oersted amplitude), these seeds show a sharp drop in the rate of heat production at temperatures… (More)


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