• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2016 Fiscal Year Annual Research Report

Evaluation method for analysis of heating mechanism of intercellular magnetic nanoparticles

Research Project

Project/Area Number 26289124
Research InstitutionYokohama National University

Principal Investigator

竹村 泰司  横浜国立大学, 工学(系)研究科(研究院), 教授 (30251763)

Co-Investigator(Kenkyū-buntansha) 山田 努  横浜国立大学, 工学(系)研究科(研究院), 助手 (70251767)
Project Period (FY) 2014-04-01 – 2017-03-31
Keywords計測工学 / 磁性 / ナノ粒子 / 磁性ナノ粒子
Outline of Annual Research Achievements

がん温熱治療は傷跡や副作用などの患者負担が少ない治療法である。腫瘍に集約可能な低濃度の磁性ナノ粒子で十分な発熱を得ることが課題である。細胞内に分散若しくは局在する磁性ナノ粒子の発熱特性とその磁界強度・周波数依存を評価するための測定手法を確立し、低強度・低周波数磁界で高い発熱を示す最適な粒径、修飾種を明らかにすることを研究目的とした。細胞の温度を実測できないために、交流磁気特性から磁性ナノ粒子の発熱を算出することが本研究の特色である。以下に得られた研究成果を示す。
(1) 磁性ナノ粒子の発熱特性と磁気特性を測定した。溶媒中に分散する微量の磁性ナノ粒子の交流磁気特性を高精度に評価可能な計測システムを構築した。
(2) 細胞内の磁性ナノ粒子は、物理的に束縛されているためにブラウン緩和は生じないと報告されている。本研究では初期的な結果ではあるが細胞中の磁性ナノ粒子の交流磁気特性を測定することに成功し、発熱量を定量的に示すことができた。
(3) 磁性ナノ粒子の交流磁気特性において、溶媒中に分散する試料と固体中に固定した試料を用いて、励磁磁場の強度・周波数依存を明らかにすることができた。この測定結果から磁性ナノ粒子間の双極子相互作用が顕在化される濃度条件、並びにそれが観測される周波数領域を明らかにした。
(5) 高い発熱を示す最適な粒径、修飾種を提示することについては、磁性ナノ粒子のコア径と、コア粒子の凝集状態などこれまでに多くは議論されていない要素が関連しており、それが磁性ナノ粒子の単純な最適設計を妨げているとの知見を得た。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Causes of Carryover

28年度が最終年度であるため、記入しない。

Expenditure Plan for Carryover Budget

28年度が最終年度であるため、記入しない。

  • Research Products

    (27 results)

All 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (18 results) (of which Int'l Joint Research: 12 results,  Invited: 4 results) Remarks (2 results)

  • [Int'l Joint Research] Florida International University(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      Florida International University
  • [Int'l Joint Research] Anna University(India)

    • Country Name
      India
    • Counterpart Institution
      Anna University
  • [Journal Article] Layer-by-layer assembled magnetic prednisolone microcapsules (MPC) for controlled and targeted drug release at rheumatoid arthritic joints2017

    • Author(s)
      C. Prabu, S. Latha, P. Selvamani, F. Ahrentorp, C. Johansson, R. Takeda, Y. Takemura, S. Ota
    • Journal Title

      Journal of Magnetism and Magnetic Materials

      Volume: 427 Pages: 258-267

    • DOI

      10.1016/j.jmmm.2016.11.030

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of magneto-plasmonic nanoparticles for multimodal image-guided therapy to the brain2017

    • Author(s)
      A. Tomitaka, H. Arami, A. Raymond, A. Arias, A. Kaushik, R. Jayant, Y. Takemura, Y. Cai, M. Toborek, M. Nair
    • Journal Title

      Nanoscale

      Volume: 9 Pages: 764-773

    • DOI

      10.1039/c6nr07520g

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of particle size and structure on harmonic intensity of blood-pooling multi-core magnetic nanoparticles for magnetic particle imaging2017

    • Author(s)
      Satoshi Ota, Ryoji Takeda, Tsutomu Yamada, Ichiro Kato, Satoshi Nohara, Yasushi Takemura
    • Journal Title

      International Journal on Magnetic Particle Imaging

      Volume: 3 Pages: 1703003

    • DOI

      10.18416/ijmpi.2017.1703003

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Rotation of magnetization derived from Brownian relaxation in magnetic fluids of different viscosity evaluated by dynamic hysteresis measurements over a wide frequency range2016

    • Author(s)
      S. Ota, R. Kitaguchi, R. Takeda, T. Yamada, Y. Takemura
    • Journal Title

      Nanomaterials

      Volume: 6 Pages: 170

    • DOI

      10.3390/nano6090170

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Coupling of transient near infrared photonic with magnetic nanoparticle for potential dissipation-free biomedical application in brain2016

    • Author(s)
      V. Sagar, V.S.R. Atluri, A. Tomitaka, P. Shah, A. Nagasetti, S. Pilakka-Kanthikeel, N. El-Hage, A. McGoron, Y. Takemura, M. Nair
    • Journal Title

      Scientific Reports

      Volume: 6 Pages: 29792

    • DOI

      10.1038/srep29792

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Effect of particle size and structure on harmonic intensity of blood-pooling multi-core magnetic nanoparticles for magnetic particle imaging2017

    • Author(s)
      S. Ota, Ryoji Takeda, Tsutomu Yamada, Ichiro Kato, Satoshi Nohara, Y. Takemura
    • Organizer
      7th International Workshop on Magnetic Particle Imaging (IWMPI)
    • Place of Presentation
      Prague, Czech
    • Year and Date
      2017-03-23 – 2017-03-24
    • Int'l Joint Research
  • [Presentation] 金属系磁性粒子を用いたシート材の交流磁場による加温2017

    • Author(s)
      星山弘樹、柴田優花、青戸知広、山田努、深瀬美紀子、藤田雄一郎、竹村泰司
    • Organizer
      平成29年電気学会全国大会
    • Place of Presentation
      富山
    • Year and Date
      2017-03-15 – 2017-03-17
  • [Presentation] Temperature rise of magnetic nanoparticles excited by using a body-size pancake-type applicator2016

    • Author(s)
      K. Takahashi, H. Hoshiyama, T. Aoto, Y. Shibata, S. Ota, T. Yamada, Y. Ikehata, S. Yamada, Y. Takemura
    • Organizer
      International Workshop on Magnetic Bio-sensing (IWMBS)
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2016-10-12 – 2016-10-14
    • Int'l Joint Research
  • [Presentation] Magnetic Relaxation of Rotatable and Non-Rotatable Magnetic Nanoparticles Evaluated by Dynamic Hysteresis Measurement2016

    • Author(s)
      K. Nishimoto, R. Takeda, R. Kitaguchi, S. Ota, T. Yamada, and Y. Takemura
    • Organizer
      International Workshop on Magnetic Bio-sensing (IWMBS)
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2016-10-12 – 2016-10-14
    • Int'l Joint Research
  • [Presentation] Effect of Carboxylated Fe3O4 Magnetic Nanoparticles and Docetaxel on Prostate Cancer Cells via NFκB-Independent Pathways2016

    • Author(s)
      K. Kojima, S. Hashimoto, K. Yamamoto, S. Ota, Y. Takemura, and M. Watanabe
    • Organizer
      International Workshop on Magnetic Bio-sensing (IWMBS)
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2016-10-12 – 2016-10-14
    • Int'l Joint Research
  • [Presentation] 交流ヒステリシス測定による磁性ナノ粒子の磁気緩和の評価2016

    • Author(s)
      竹田遼二、大多哲史、北口了一、山田努、竹村泰司
    • Organizer
      電気学会マグネティックス研究会
    • Place of Presentation
      横浜
    • Year and Date
      2016-09-20 – 2016-09-21
  • [Presentation] 磁性ナノ粒子の磁気緩和とパンケーキ型コイルを用いた誘導加温2016

    • Author(s)
      青戸知広、高橋克希、星山弘樹、由岡友太、山田努、大多哲史、池畑芳雄、山田外史、竹村泰司
    • Organizer
      第40回 日本磁気学会学術講演会
    • Place of Presentation
      金沢
    • Year and Date
      2016-09-05 – 2016-09-08
  • [Presentation] 磁性ナノ粒子の形態に依存した磁気緩和機構の評価2016

    • Author(s)
      大多哲史、大橋成美、Subbiah Latha、Chakrapani Prabu、Palanisamy Selvamani、竹村泰司
    • Organizer
      第40回 日本磁気学会学術講演会
    • Place of Presentation
      金沢
    • Year and Date
      2016-09-05 – 2016-09-08
  • [Presentation] 周波数及び磁界強度に依存した超常磁性ナノ粒子の磁化ダイナミクス計測2016

    • Author(s)
      大多哲史、竹田遼二、山田努、竹村泰司
    • Organizer
      第40回 日本磁気学会学術講演会
    • Place of Presentation
      金沢
    • Year and Date
      2016-09-05 – 2016-09-08
  • [Presentation] Magnetic properties of intercellular magnetic nanoparticles for biomedical applications2016

    • Author(s)
      Y. Takemura and S. Ota
    • Organizer
      European Advanced Materials Congress (EAMC)
    • Place of Presentation
      Stockholm, Sweden
    • Year and Date
      2016-08-23 – 2016-08-25
    • Int'l Joint Research / Invited
  • [Presentation] Static and dynamic magnetic properties of intercellular magnetic nanoparticles for biomedical applications2016

    • Author(s)
      Y. Takemura
    • Organizer
      The 4th International Conference of Asian Union of Magnetics Societies (IcAUMS 2016)
    • Place of Presentation
      Tainan, Taiwan
    • Year and Date
      2016-08-01 – 2016-08-05
    • Int'l Joint Research / Invited
  • [Presentation] Neel relaxation and its anisotropic behavior in superparamagnetic nanoparticle evaluated by dynamic hysteresis measurement2016

    • Author(s)
      Ryoji Takeda, S. Ota, Yiliang Wang, Tsutomu Yamada and Y. Takemura
    • Organizer
      The 11th International Conference on the Scientific and Clinical Applications of Magnetic Carriers
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      2016-05-31 – 2016-06-04
    • Int'l Joint Research
  • [Presentation] Magnetic loss and constant magnetic rotation of magnetic nanoparticles in viscosity dependence evaluated by dynamic hysteresis measurement2016

    • Author(s)
      Ryoji Takeda, Ryoichi Kitaguchi, S. Ota, Tsutomu Yamada and Y. Takemura
    • Organizer
      The 11th International Conference on the Scientific and Clinical Applications of Magnetic Carriers
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      2016-05-31 – 2016-06-04
    • Int'l Joint Research
  • [Presentation] Magnetization dynamics of magnetic nanoparticle associated with magnetic relaxation characterized by alternating current hysteresis measurement2016

    • Author(s)
      S. Ota, Ryoji Takeda, Tsutomu Yamada and Y. Takemura
    • Organizer
      The 11th International Conference on the Scientific and Clinical Applications of Magnetic Carriers
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      2016-05-31 – 2016-06-04
    • Int'l Joint Research
  • [Presentation] Development of magneto-plasmonic nanoparticles for brain-targeted image-guided drug delivery2016

    • Author(s)
      A. Tomitaka, H. Arami, Y. Takemura, Y. Cai, M. Nair
    • Organizer
      3rd Personalized NanoMedicine Symposium
    • Place of Presentation
      Miami, USA
    • Year and Date
      2016-05-19 – 2016-05-20
  • [Presentation] Materials characterization by their magnetic properties - from nanoparticles in biomedical applications to fatigue-damaged rail2016

    • Author(s)
      Y. Takemura
    • Organizer
      The 10th International Materials Technology Conference & Exhibition
    • Place of Presentation
      Kuala Lumpur, Malaysia
    • Year and Date
      2016-05-16 – 2016-05-18
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic relaxation of intercellular magnetic nanoparticles for biomedical applications2016

    • Author(s)
      Y. Takemura and S. Ota
    • Organizer
      EMN (Energy, Materials and Nanotechnology) Conference
    • Place of Presentation
      Dubrovnik, Croatia
    • Year and Date
      2016-05-04 – 2016-05-07
    • Int'l Joint Research / Invited
  • [Presentation] Synthesis and characterization of multi-functional nanoparticles for image-guided drug delivery to the brain2016

    • Author(s)
      A. Tomitaka, Y. Takemura, Y Cai, M. Nair
    • Organizer
      The 13th Annual World Congress of The Society for Brain Mapping and Therapeutics
    • Place of Presentation
      Miami, USA
    • Year and Date
      2016-04-08 – 2016-04-10
    • Int'l Joint Research
  • [Remarks] 研究者詳細(竹村泰司)

    • URL

      http://er-web.jmk.ynu.ac.jp/html/TAKEMURA_Yasushi/ja.html

  • [Remarks] 横浜国立大学 竹村研究室 研究室情報

    • URL

      http://www.takemura.ynu.ac.jp/laboratory.html

URL: 

Published: 2018-01-16   Modified: 2022-02-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi