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

Development of Janus-shaped gold nanoparticles for cancer treatment using highly biopermeable near-infrared light

Research Project

Project/Area Number 22K19908
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 90:Biomedical engineering and related fields
Research InstitutionHokkaido University

Principal Investigator

Ijiro Kuniharu  北海道大学, 電子科学研究所, 教授 (90221762)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2023: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywords金ナノ粒子 / ヤヌス型ナノ粒子 / 自己集合 / 光免疫療法 / 近赤外 / 光熱変換 / プラズモン / 近赤外光 / 光熱効果 / ガン細胞
Outline of Research at the Start

ガン治療法として、光免疫療法は「第5のがん治療」として注目されているが、治療に用い
る波長 690 nm の光では組織の透過度が高くないので、光ファイバーを腫瘍の適切な部位
に穿刺して光照射しないと、十分な治療効果を期待することはできない。そこで、本研究
では透過深度が高い波長1,000 nm を超える近赤外光(OTN-近赤外光)でガン細胞を破壊す
ることを可能にするヤヌス型金ナノロッドの開発をめざす。これにより無侵襲な(体の中に光ファイバーを入れない)ガン光治療の開発をめざす。

Outline of Final Research Achievements

In this research, we aimed to develop a photothermal therapeutic system to disrupt cancer cell membranes with gold nanoparticles (AuNPs) that absorb near-infrared (NIR) light. The AuNPs were modified with temperature-responsive ligands to express surfactant effect that destroys cell membranes via photothermal conversion. Firstly, a disc (AuND) was modified with a weakly hydrophobic ligand to provide temperature responsivity. As a result, it showed assembly/disassembly according to heating/cooling with good dispersibility. Next, a rod (AuNR) was mixed with cancer cells in a culture medium and irradiated with NIR light to demonstrate cell membrane disruption. As a result, cell viability was significantly reduced with NIR light irradiation. These results revealed that the photothermal conversion of AuNPs enables to induce the death of cancer cells with NIR light efficiently.

Academic Significance and Societal Importance of the Research Achievements

近年、「第5のガン治療」として注目されている光免疫療法は、皮膚を透過する近赤外(NIR)光で色素を反応させ、ガン細胞を特異的に死滅させることができるが、細胞膜の破壊効率、色素分子の吸収波長、内在的な毒性の点で改善の余地がある。一方で、本研究により、金ナノ粒子の形状を制御することで、より生体透過性が高いNIR領域にプラズモン吸収波長を設定できることが明らかとなった。さらに、金ナノ粒子の光熱変換能により、NIR光でガン細胞の死滅を誘起できることが分かった。本研究で得られた成果により、標的細胞の破壊効率が高く、毒性を低減した新たな光免疫療法への応用展開が期待できる。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (24 results)

All 2024 2023 2022

All Journal Article (6 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (17 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results) Book (1 results)

  • [Journal Article] Dynamic Orientation Control of Gold Nanorods in Polymer Brushes by Their Thickness Changes for Plasmon Switching2024

    • Author(s)
      Sekizawa Yu、Hasegawa Yuka、Mitomo Hideyuki、Toyokawa Chisato、Yonamine Yusuke、Ijiro Kuniharu
    • Journal Title

      Advanced Materials Interfaces

      Volume: 11 Issue: 11 Pages: 2301066-2301066

    • DOI

      10.1002/admi.202301066

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Size Segregation of Gold Nanoparticles into Bilayer-like Vesicular Assembly2023

    • Author(s)
      Wei Jinjian、Yu Yi、Matsuo Yasutaka、Zhang Liang、Mitomo Hideyuki、Chen Yuqin、Ijiro Kuniharu、Zhang Zhide
    • Journal Title

      Langmuir

      Volume: 39 Issue: 49 Pages: 17939-17946

    • DOI

      10.1021/acs.langmuir.3c02628

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] DNA-Functionalized Silver Nanoparticles in an Alcoholic Solvent for Environment-Dictated Multimodal Actuation2022

    • Author(s)
      Kong Li、Wang Luyang、Shi Yali、Peng Lin、Liang Xingguo、Wang Guoqing、Mitomo Hideyuki、Takarada Tohru、Ijiro Kuniharu、Maeda Mizuo
    • Journal Title

      ACS Applied Nano Materials

      Volume: 5 Issue: 8 Pages: 10321-10330

    • DOI

      10.1021/acsanm.2c01493

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Three-dimensional structure determination of gold nanotriangles in solution using X-ray free-electron laser single-particle analysis2022

    • Author(s)
      Nakano Miki、Miyashita Osamu、Joti Yasumasa、Suzuki Akihiro、Mitomo Hideyuki、Niida Yoshiya、Yang Ying、Yumoto Hirokatsu、Koyama Takahisa、Tono Kensuke、Ohashi Haruhiko、Yabashi Makina、Ishikawa Tetsuya、BESSHO YOSHITAKA、Ijiro Kuniharu、Nishino Yoshinori、Tama Florence
    • Journal Title

      Optica

      Volume: 9 Issue: 7 Pages: 776-784

    • DOI

      10.1364/optica.457352

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hysteresis in the Thermo-Responsive Assembly of Hexa(ethylene glycol) Derivative-Modified Gold Nanodiscs as an Effect of Shape2022

    • Author(s)
      Mba Joshua Chidiebere、Mitomo Hideyuki、Yonamine Yusuke、Wang Guoqing、Matsuo Yasutaka、Ijiro Kuniharu
    • Journal Title

      Nanomaterials

      Volume: 12 Issue: 9 Pages: 1421-1421

    • DOI

      10.3390/nano12091421

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Core?Gap?Shell Nanoparticles@Polyaniline with Tunable Plasmonic Chiroptical Activities by pH and Electric Potential Dual Modulation2022

    • Author(s)
      Lin Han、Mitomo Hideyuki、Yonamine Yusuke、Guo Zhiyong、Ijiro Kuniharu
    • Journal Title

      Chemistry of Materials

      Volume: 34 Issue: 9 Pages: 4062-4072

    • DOI

      10.1021/acs.chemmater.2c00313

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Ultra-sensitive SERS at Single-protein Level via a New Delivery Technique for Analytes into Hotspots2024

    • Author(s)
      ○Tianxu Gao, Hideyuki Mitomo, Xu Shi, Yusuke Yonamine, Kuniharu Ijiro
    • Organizer
      日本化学会 第104春季年会(2024)@日本大学理工学部 船橋キャンパス
    • Related Report
      2023 Annual Research Report
  • [Presentation] A New Delivery Technique for Analytes into Narrow Hotspots for Ultra-sensitive SERS at Single-protein Level2024

    • Author(s)
      ○Tianxu Gao, Hideyuki Mitomo, Xu Shi, Yusuke Yonamine, Kuniharu Ijiro
    • Organizer
      第71回応用物理学会春季学術講演会@東京都市大学 世田谷キャンパス
    • Related Report
      2023 Annual Research Report
  • [Presentation] Discrete chiral gold nanorods with tunable chiroptical activities by pH and electric potential dual modulation2023

    • Author(s)
      ○Han Lin, Hideyuki Mitomo, Yusuke Yonamine, Zhiyong Guo, Kuniharu Ijiro
    • Organizer
      APNFO14 (The 14th Asia-Pacific Conference on Near-field Optics)@Busan, Korea
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Orientational change of gold nanorods with synthetic polymer brush by solvent exchange2023

    • Author(s)
      ○Yu Sekizawa, Hideyuki Mitomo, Yusuke Yonamine, Takuya Isono, Kenji Tajima, Hirofumi Satoh, Kuniharu Ijiro
    • Organizer
      APNFO14 (The 14th Asia-Pacific Conference on Near-field Optics)@Busan, Korea
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anionic polymer brushes can change anisotropic nanoparticle’s orientation2023

    • Author(s)
      ○Yu Sekizawa, Hideyuki Mitomo, Yusuke Yonamine, Takuya Isono, Kenji Tajima, Toshifumi Satoh, Kuniharu Ijiro
    • Organizer
      IPC2023 (The 13th SPSJ International Polymer Conference)@Sapporo
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 癌温熱治療への応用に向けた温度応答性金ナノ粒子の表面分子デザイン2023

    • Author(s)
      ○丹羽萌乃佳、三友秀之、熊 坤、与那嶺雄介、居城邦治
    • Organizer
      第33回バイオ・高分子シンポジウム@東京工業大学
    • Related Report
      2023 Annual Research Report
  • [Presentation] Nanogap Tunable Gold Nanotriangle Arrays for Sensitive Protein Detection by SERS2023

    • Author(s)
      ○Tianxu Gao, Hideyuki Mitomo, Xu Shi, Yusuke Yonamine, Kuniharu Ijiro
    • Organizer
      第74回コロイドおよび界面化学討論会 @信州大学
    • Related Report
      2023 Annual Research Report
  • [Presentation] 生体環境中における分散性改善に向けたオリゴエチレングリコール被覆温度応答性金ナノ粒子の表面デザイン2023

    • Author(s)
      ○丹羽萌乃佳、三友秀之、熊坤、与那嶺雄介、居城邦治
    • Organizer
      第74回コロイドおよび界面化学討論会 @信州大学
    • Related Report
      2023 Annual Research Report
  • [Presentation] オリゴエチレングリコール被覆金ナノ粒子の表面特性と機能制御2023

    • Author(s)
      ○三友秀之、丹羽萌乃佳、熊 坤、与那嶺 雄介、居城 邦治
    • Organizer
      第72回高分子討論会 @香川大学
    • Related Report
      2023 Annual Research Report
  • [Presentation] 生体環境中における分散性改善に向けた温度応答性金ナノ粒子の表面分子デザイン2023

    • Author(s)
      丹羽萌乃佳、三友秀之、熊 坤、与那嶺雄介、居城邦治
    • Organizer
      日本化学会 第103春季年会(2023)
    • Related Report
      2022 Research-status Report
  • [Presentation] 金ナノ粒子表面のアルカンチオール交換による表面物性の再設計2022

    • Author(s)
      熊 坤、三友秀之、与那嶺雄介、居城邦治
    • Organizer
      第73回コロイドおよび界面化学討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Surface Design of Thermo-Responsive Gold Nanoparticles Coated with OEG-Based Alkane Thiols for Medical Applications2022

    • Author(s)
      Xiong Kun, Hideyuki Mitomo, Honoka Niwa, Yusuke Yonamine, Kuniharu Ijiro
    • Organizer
      The 22nd International Vacuum Congress
    • Related Report
      2022 Research-status Report
  • [Presentation] フォトサーマルセラピー応用に向けた温度応答性金ナノ粒子の表面分子デザイン2022

    • Author(s)
      丹羽萌乃佳、三友秀之、熊 坤、与那嶺雄介、居城邦治
    • Organizer
      第32回バイオ・高分子シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] Hysteresis on assembly/disassembly of gold nanodiscs coated with thermo-responsive molecules2022

    • Author(s)
      Joshua Chidiebere Mba, Hideyuki Mitomo, Yusuke Yonamine, Yasutaka Matsuo and Kuniharu Ijiro
    • Organizer
      第71回高分子学会年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 溶媒に依存して可逆的に形成する金ナノ粒子ベシクル2022

    • Author(s)
      杉山亮、 三友秀之、与那嶺雄介、○居城邦治
    • Organizer
      第32回バイオ・高分子シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] Biomimetic self-assembly of nanoparticles in solutions2022

    • Author(s)
      Kuniharu Ijiro
    • Organizer
      9th NaBIS
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Self-Assembly of Gold Nanoparticles in Solution2022

    • Author(s)
      Kuniharu Ijiro
    • Organizer
      RIES-CEFMS Symposium
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] Materials Nanoarchitectonics, From Integrated Molecular Systems to Advanced Devices (1st Edition- December 15, 2023), Chapter 7, 137-1592023

    • Author(s)
      Hideyuki Mitomo, Kuniharu Ijiro:(Book Chapter)
    • Total Pages
      646
    • Publisher
      Elsevier
    • ISBN
      9780323994736
    • Related Report
      2023 Annual Research Report

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi