[18p-PB1-1~84] 10 Spintronics and Magnetics (Poster)

[18p-PB1-57] AC Magnetic Susceptibility of Mn_0.8Zn_0.2Fe₂O₄ nanoparticles and nano-theranostics

Sota HAMADA¹, Koki FUJIWARA², Taisei IDE², Akito OSHIMA², Kouhei KANDA³, 〇Yuko ICHIYANAGI^1,2,4 (1.Yokohama Nat Univ, 2.Grad Yokohama Nat U, 3.NatEnv Yokohama NU, 4.Osaka Univ)

Keywords:magnetic material, hyperthermia, theranostics

We prepared Mn-Zn nanoparticles with diameters between 7 and 30 nm. AC magnetic properties and local structures were first investigated. Then polyethylene glycol (PEG) was modified to magnetic nanoparticles to improve the biocompatibility and dispersibility. Effective MR relaxation rate and hyperthermia effect in human breast cancer cell were confirmed. These magnetic nanoparticles would be effective for diagnostics and therapies that introduce a novel development in the field of theranostics.