| Project/Area Number |
14550800
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
無機工業化学
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| Research Institution | Kyoto University |
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Principal Investigator |
KAWASHITA Masakazu KYOTO UNIVERSITY, GRADUATE SCHOOL OF ENGINEERING, ASOCIATE RESEARCHER, 工学研究科, 助手 (70314234)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2003: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2002: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | MICROSPHERE / FERRIMAGNETISM / MAGNETITE / DEEP-SEATED CANCER / HYPERTHERMIA / HYSTERESIS LOSS / PRECIPITATION / HIGH-FREQUENCY INDUCTION THERMAL PLASMA / 温熱治療 / 磁気ヒステリシス損 / 高周波誘導熱プラズマ溶融法 / β-FeOOH / 水溶液折出法 |
|---|
| Research Abstract |
Pure Fe_3O_4 microspheres 20-30 μm in diameter can be prepared by melting powders in high-frequency induction thermal plasma and subsequent heat treatment. The heat-treated microspheres show the heat generation, 10 W・g^<-1>, under 300 0e and 100 kHz. The microspheres 20-30 μm in diameter containing small crystals of Fe_3O_4 50 nm in size can be prepared by a precipitation from solution and subsequent heat treatment. The heat-treated microspheres show the heat generation, 41 W・g^<-1>, under 300 0e and 100 kHz. The microspheres prepared by a precipitation from solution and subsequently subjected to heat treatment can be a promising candidate of thermoseeds for hyperthermia of cancer, since they can show a n excellent heat generating ability.
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