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2010 Fiscal Year Annual Research Report

高度分子認識を目指した生体分子と合成高分子のなす超構造界面密生層の構築

Planned Research

Project AreaMolecular Soft-Interface Science
Project/Area Number 20106011
Research InstitutionUniversity of Tsukuba

Principal Investigator

長崎 幸夫  筑波大学, 数理物質系, 教授 (90198309)

Co-Investigator(Kenkyū-buntansha) 吉本 敬太郎  東京大学, 大学院・総合文化研究科, 准教授 (60392172)
KeywordsPEG / ポリマーブラシ / 密生層 / 分子認識 / センサー
Research Abstract

平成22年度以降は初年度に構築した3次元ナノ界面の特性をさらに追究するとともに、機能発現に関しても以下のように検討を行った。
1)バイオ・高分子ハイブリッド密生層、特に酵素とPEGの成す界面に関して、その界面上の構造と機能に関する基礎的研究をおこなった。タンパク固定化表面に対しては、そのタンパク質の活性と密生層との関わりについて詳細に検討した。構造解析には既存のCDを利用し、その変成に言及するとともに、FRETやSPRによる検討を行った。
2)PEG/オリゴ核酸界面密生層のクラウディング効果をふまえた構造と機能の追究:3次元ナノ界面でのナノ密生層によるクラウディング効果を検討し、高い活性が維持できることが確認された。
3)バイオ・高分子ハイブリッド密生層の構造最適化と超高性能分子認基盤の創出:さらにこれまでに得られた知見を元にフィードバックし、最適な表面・界面設計を行い、これまでにないバイオ・高分子ハイブリッド密生層の構築と機能デバイスの創出に関して追究し、適正材料の合成を行った。
4)様々な機材に対するバイオ・高分子ハイブリッド密生層の構築と機能デバイスの創出:モデル表面から展開し、様々な材料、ナノ粒子、パタン化表面などへのバイオ・高分子ハイブリッド密生層の構築法を確立し、バイオ機材表面のプラットフォーム化を進めた。
5)液体中での合成高分子と生体分子とのなすナノ界面に関する検討を行い、特にたんぱく質とわれわれが合成してきたグラフトポリマー界面で高い耐熱効果を確認した。

  • Research Products

    (14 results)

All 2011 2010

All Journal Article (12 results) (of which Peer Reviewed: 12 results) Presentation (1 results) Book (1 results)

  • [Journal Article] TEMPOL Protects Human Neuroblastoma SH-SY5Ycells Against β-amyloid-induced Cell Toxicity2011

    • Author(s)
      Chonpathompikunlert Pennapa, Han Junkyu, Toh Kazuko, Hiroko Isoda,Nagasaki Yukio
    • Journal Title

      European Journal of Pharmacology

      Volume: 650 Pages: 544-549

    • Peer Reviewed
  • [Journal Article] Engineering of poly(ethylene glycol) chain-tethered surfaces to obtain high-performance bionanoparticles2010

    • Author(s)
      Nagasaki Yukio
    • Journal Title

      Science and Technology of Advanced Materials

      Volume: 11(5) Pages: 054505-054514

    • Peer Reviewed
  • [Journal Article] Enzyme switch by complementary polymer pair system (CPPS)2010

    • Author(s)
      Tomita Shunsuke, Ito Len, Yamaguchi Hiroshi, Konishi Gen-ichi, Nagasaki Yukio, Shiraki Kentaro
    • Journal Title

      Soft Matter

      Volume: 6 Pages: 5320-5326

    • Peer Reviewed
  • [Journal Article] Simple Solid-Phase Synthesis and Biological Properties of Carbohydrate-Oligonucleotide Conjugates Modified at the 3''-Terminus2010

    • Author(s)
      Ikeda Yutaka, Kubota Daisuke, Nagasaki Yukio
    • Journal Title

      Bioconjugate Chemistry

      Volume: 21 Pages: 1685-1690

    • Peer Reviewed
  • [Journal Article] PEGylated Polymer Micelle-based Nitric Oxide (NO) Photodonor with NO-mediated Antitumor Activity2010

    • Author(s)
      Kanayama Naoki, Yamaguchi Kazuhiro, Nagasaki Yukio
    • Journal Title

      Chemistry Letter

      Volume: 39(9) Pages: 1008-1009

    • Peer Reviewed
  • [Journal Article] Smart siRNA Delivery Systems Based on Polymeric Nano-assemblies and Nanoparticles2010

    • Author(s)
      Tamura Atsushi, Nagasak Yukio
    • Journal Title

      Nanomedicine

      Volume: 5(7) Pages: 1089-1102

    • Peer Reviewed
  • [Journal Article] Efficient siRNA Delivery Based on PEGylated and Partially Quaternized Polyamine Nanogels : Enhanced Gene Silencing Activity by the Cooperative Effect of Tertiary and Quaternary Amino Groups in the Core2010

    • Author(s)
      Tamura Atsushi, Oishi Motoi, Nagasaki Yukio
    • Journal Title

      Journal of Controlled Release

      Volume: 146 Pages: 378-387

    • Peer Reviewed
  • [Journal Article] Direct Observation of Adsorption-Induced Inactivation of Antibody Fragments Surrounded by Mixed-PEG Layer on a Gold Surface2010

    • Author(s)
      Yoshimoto Keitaro, Nishio Motohiko, Sugasawa Hiroaki, Nagasaki Yukio
    • Journal Title

      Journal of the American Chemical Society

      Volume: 132(23) Pages: 7982-7989

    • Peer Reviewed
  • [Journal Article] Improving the Heat Resistance of Ribonuclease A by the Addition of Poly(N,N-diethylaminoethyl methacrylate)-graft-poly(ethylene glycol) (PEAMA-g-PEG)2010

    • Author(s)
      Ganguli Sumon, Keitaro Yoshimoto, Tomita Shunsuke, Sakuma Hiroshi, Matsuoka Tsuneyoshi, Shiraki Kentaro, Nagasaki Yukio
    • Journal Title

      Macromolecular Bioscience

      Volume: 10(8) Pages: 853-859

    • Peer Reviewed
  • [Journal Article] Large Payloads of Gold Nanoparticles into the Polyamine Network Core of Stimuli-Responsive PEGylated Nanogels for Selective and Noninvasive Cancer Photothermal Therapy2010

    • Author(s)
      Nakamura Takahito, Tamura Atsushi, Murotani Hiroki, Oishi Motoi, Jinji Yuta, Matsuishi Kiyoto, Nagasaki Yukio
    • Journal Title

      Nanoscale

      Volume: 2(5) Pages: 739-746

    • Peer Reviewed
  • [Journal Article] Stimuli-Responsive Smart Nanogels for Cancer Diagnostics and Therapy2010

    • Author(s)
      Oishi Motoi, Nagasaki Yukio
    • Journal Title

      Nanomedicine

      Volume: 5(3) Pages: 451-468

    • Peer Reviewed
  • [Journal Article] Preparation and Molecular Recognition of SERS Probe Based on Gold Nanoparticles Constructed from PEG-Oligoamine Copolymer Possessing a Coumarin Group between PEG and Oligoamine2010

    • Author(s)
      Furusho Hitoshi, Oishi Motoi, Kishi Tetsuo, Yasumori Atsuo, Nagasaki Yukio
    • Journal Title

      Chemistry Letters

      Volume: 39(1) Pages: 52-53

    • Peer Reviewed
  • [Presentation] Novel Nanoparticles Functionalized for Anti-Oxidative Stress2010

    • Author(s)
      Nagasaki Yukio
    • Organizer
      NanoDDS'10
    • Place of Presentation
      Omaha, Nbraska USA(招待講演)
    • Year and Date
      20101003-20101005
  • [Book] Design of Highly Functional Antiferritin-Immunolatex by Hybridization of Antiferritin/Mixed-PEG Polymers onto Polystyrene Submicroparticles2010

    • Author(s)
      Xiaofei Yuan, Dolca Fabregat, Keitaro Yoshimoto, Yukio Nagasaki
    • Total Pages
      15
    • Publisher
      Biomaterials : ACS Symposium Series

URL: 

Published: 2013-06-26  

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