4:15 PM - 4:30 PM [13p-N324-13] Development of Colloidal Si Nanoparticles with Accessible MagneticHotspots(II) 〇Akira Matsumori1, Hiroshi Sugimoto1,2, Minoru Fujii1 (1.Kobe Univ., 2.JST-PRESTO)