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Establishment of Induction Heating Theory for Magnetic Nanoparticles by Fusion of Theories in Different Fields and Development of Novel Nanoparticle Synthesis Process

Research Project

Project/Area Number 19K05216
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 28030:Nanomaterials-related
Research InstitutionOsaka Metropolitan University (2022)
Osaka Prefecture University (2019-2021)

Principal Investigator

Iwasaki Tomohiro  大阪公立大学, 大学院工学研究科, 教授 (50295721)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords磁性ナノ粒子 / 誘導加熱 / 磁気ハイパーサーミア / フェライト
Outline of Research at the Start

実用化が期待されているがん温熱療法(磁気ハイパーサーミア)を実現するためには、発熱体である磁性ナノ粒子の誘導加熱を制御する因子を明らかにする新しい理論を確立するとともに、最適な物性・特性をもつ磁性ナノ粒子を設計し、これを的確に合成する新規プロセスを構築しなければならない。とくに理論の確立では従来の理論で問題とされてきたナノ粒子の粒子径分布の考慮だけでなく、異分野の理論、すなわち移動現象論やコロイド科学、結晶学などの知見を融合する必要がある。本研究は研究代表者がこれまでに得た研究成果を基に、従来にない全く新しい発想で、磁気ハイパーサーミアの実現における大きな障害の解消を目指す。

Outline of Final Research Achievements

For realizing magnetic hyperthermia treatment as a new cancer therapy, induction heating theory and synthesis of magnetic nanoparticles with suitable properties are required. To achieve this, the relationship between an anisotropy parameter, which is an index of the magnetic anisotropy, and an amount of induction heating was focused. Effects of the magnetic dipolar interaction of superparamagnetic nanoparticles on the induction heating was investigated theoretically and experimentally. As a result, an essential mechanism in the induction heating was revealed, which provided a guide for development of a new theory for hyperthermia treatment.

Academic Significance and Societal Importance of the Research Achievements

現在のがん治療法は、治療効果は大きいものの、治療時の患者への身体的・精神的負担が大きく、また、高額な治療費など、早急に改善すべき課題が残されている。新しいがん治療法の一つである温熱治療(磁気ハイパーサーミア)は、これらの問題の解決策の一つとして期待されている。本研究の成果は、磁気ハイパーサーミアの実現に向けて必要不可欠な誘導加熱の予測と治療に用いる発熱材料の合成に関する技術の進歩に寄与するものである。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (6 results)

All 2023 2022 2021 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Low-temperature solvent-free synthesis of polycrystalline hematite nanoparticles via mechanochemical activation and their adsorption properties for Congo red2022

    • Author(s)
      Onizuka Takahiro、Iwasaki Tomohiro
    • Journal Title

      Solid State Sciences

      Volume: 129 Pages: 106917-106917

    • DOI

      10.1016/j.solidstatesciences.2022.106917

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A comparative study of the magnetic induction heating properties of rare earth (RE = Y, La, Ce, Pr, Nd, Gd and Yb)-substituted magnesium?zinc ferrites2021

    • Author(s)
      Hirosawa Fumie、Iwasaki Tomohiro
    • Journal Title

      Solid State Sciences

      Volume: 118 Pages: 106655-106655

    • DOI

      10.1016/j.solidstatesciences.2021.106655

    • NAID

      120007184127

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mechanochemically assisted synthesis of La0.7Sr0.3MnO3 nanoparticles and induction heating properties of the composites with hydroxyapatite2021

    • Author(s)
      Iwasaki Tomohiro、Takeda Rie
    • Journal Title

      Current Applied Physics

      Volume: 25 Pages: 12-17

    • DOI

      10.1016/j.cap.2021.02.007

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] メカノケミカル活性化を利用したヘマタイト/マグネタイト複合ナノ粒子の無溶媒合成2023

    • Author(s)
      鬼塚貴大、岩崎智宏
    • Organizer
      化学工学会第88年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Mechanochemically assisted synthesis of hematite nanoparticles via homogeneous precipitation2021

    • Author(s)
      Takahiro Onizuka, Tomohiro Iwasaki
    • Organizer
      The 8th Asian Particle Technology Symposium (APT 2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] マグネシウム亜鉛フェライトナノ粒子の誘導加熱特性2019

    • Author(s)
      香山実希,岩崎智宏,岩田政司
    • Organizer
      化学工学会粒子・流体プロセス部会粉体プロセス分科会第一回粉体プロセス研究会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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