光捕捉で配向制御した金属ナノ微粒子凝集体と色素分子会合体の光学的相互作用

2009 Fiscal Year Annual Research Report

• Project Area: Strong Photons-Molecules Coupling Fields for Chemical Reactions
• Project/Area Number: 21020034
• Research Institution: Kwansei Gakuin University
• Principal Investigator: 尾崎 幸洋 Kwansei Gakuin University, 理工学部, 教授 (00147290)
• Co-Investigator(Kenkyū-buntansha): 北濱 康孝 (独)産業技術総合研究所, 健康工学研究センター, テクニカルスタッフ (00342775)
• Keywords: 表面増強ラマン散乱(SERS) / 局在表面プラズモン共鳴(LSPR) / レーザートラップ / 銀ナノ微粒子凝集体 / 色素分子会合体 / チアカルボシアニン / 共鳴ラマン / 偏光依存性

Research Abstract

チアカルボシアニン色素分子の置換基のわずかな違いによる立体障害で、梯子状および階段状に分子が整列したHおよびJ会合体を作り分けて、表面増強ラマン散乱(SERS)スペクトルを比較したところ、H会合体のSERSスペクトルはJ会合体に比べて減衰が速いことが判った。これは、階段状のJ会合体は分子平面全体が銀表面に吸着しているのに対して、梯子状のH会合体では分子の縁のみが銀表面に吸着し不安定なためではないかと考えられる。メチルチアカルボシアニンの場合、単一銀ナノ微粒子凝集体からのSERSの減衰速度が三種類の値を示したが、これは単一会合体の配向の違いによると考えられる。すなわち、銀表面に対してH会合体が垂直あるいは平行に配向した場合とJ会合体が平行に配向した場合である。
また、アニオン性色素分子は銀表面との静電反発によりSERS測定が困難であったが、数十μmの長さのアニオン性チアカルボシアニンH会合体を光トラップすると共に、焦点位置に銀ナノ微粒子も光トラップして凝集させることで、SERSの測定に成功した。
後者に関しては、H会合体がシングルモード光ファイバーとして応用できることが報告されており、有機光学材料と金属ナノ構造体を組み合わせた新たなデバイスに繋がることも期待される成果である。また前者は、その複合プラズモニクスデバイス作製の際に生じ得る問題解決のための知見という意義がある。

Research Products

• [Journal Article] Label-Free Highly Sensitive Detection of Proteins in Aqueous Solutions Using Surface-Enhanced Raman Scattering (2009)
  • Author(s): XiaoXia Han
  • Journal Title: Analytical Chemistry 81 Pages: 3329-3333
  • Peer Reviewed
• [Journal Article] Protein-mediated sandwich strategy for surface-enhanced Raman scattering : application to versatile protein detection (2009)
  • Author(s): XiaoXia Han
  • Journal Title: Analytical Chemistry 81 Pages: 3350-3355
  • Peer Reviewed
• [Journal Article] Surface plasmon excitation and surface-enhanced Raman scatteringusing two-dimensionally close-packed gold nanoparticles (2009)
  • Author(s): Mohammad Kamal Hossain
  • Journal Title: The Journal of Physical Chemistry C 113 Pages: 11689-11694
  • Peer Reviewed
• [Journal Article] Wavelength-dependent surface-enhanced resonance Raman scattering by excitation of transverse localized surface plasmon (2009)
  • Author(s): Yasutaka Kitahama
  • Journal Title: The Journal of Physical Chemistry C 113 Pages: 11877-11883
  • Peer Reviewed
• [Journal Article] Development of a heat-induced surface-enhanced Raman scattering sensing method for rapid detection of glutathione in aqueous solutions (2009)
  • Author(s): Genin Gary Huang
  • Journal Title: Analytical Chemistry 81 Pages: 5881-5888
  • Peer Reviewed
• [Journal Article] Surface-enhanced Raman scattering and plasmon excitations from isolated and elongated gold nanoaggregates (2009)
  • Author(s): Mohammad Kamal Hossain
  • Journal Title: Chemical Physics Letters 477 Pages: 130-134
  • Peer Reviewed
• [Journal Article] Surface-enhanced Raman scattering : facts and inline trends (2009)
  • Author(s): Mohammad Kamal Hossain
  • Journal Title: Current Science 97 Pages: 192-201
  • Peer Reviewed
• [Journal Article] The study on linear relationship between concentration and surface-enhanced Raman spectroscopy(SERS)signal of thymine in improved Ag sol (2009)
  • Author(s): Lei Mang
  • Journal Title: Spectroscopy and Spectral Analysis 29 Pages: 1889-1891
  • Peer Reviewed
• [Journal Article] Characteristics of surface-enhanced Raman scattering and surface-enhanced fluorescence using a single and a double layer gold nanostructure (2009)
  • Author(s): Mohammad Kamal Hossain
  • Journal Title: Physical Chemistry Chemical Physics 11 Pages: 7484-7490
  • Peer Reviewed
• [Journal Article] Identification of thiacyanine J-aggregates adsorbed on single silver nanoaggregates by surface-enhanced Raman scattering and emission spectroscopy (2009)
  • Author(s): Yasutaka Kitahama
  • Journal Title: Bulletin of the Chemical Society of Japan 82 Pages: 1126-1132
  • Peer Reviewed
• [Journal Article] SERRS fiber probe : fabrication of silver nanoparticles at the aperture of an optical fiber used for SNOM (2009)
  • Author(s): Yasutaka Kitahama
  • Journal Title: Chemical Communications 43 Pages: 6563-6565
  • Peer Reviewed
• [Journal Article] A novel reversed reporting agent method for surface-enhanced Raman scattering ; highly sensitive detection of glutathione in aqueous solutions (2009)
  • Author(s): Genin Gary Huang
  • Journal Title: Analyst 134 Pages: 2468-2474
  • Peer Reviewed
• [Journal Article] Spectral shapes of surface-enhanced resonance Raman scattering sensitive to the refractive index of media around single Agnanoaggregates (2009)
  • Author(s): Ken-ichi Yoshida
  • Journal Title: Applied Physics Letters 95 Pages: 263104-1-263104-3
  • Peer Reviewed
• [Journal Article] Surface-enhanced Raman scattering : realization of localized surface plasmon resonance using unique substrates and methods (2009)
  • Author(s): Mohammad Kamal Hossain
  • Journal Title: Analytical and Bioanalytical Chemistry 394 Pages: 1747-1760
  • Peer Reviewed
• [Journal Article] Surface-enhanced Raman scattering for protein detection (2009)
  • Author(s): XiaoXia Han
  • Journal Title: Analytical and Bioanalytical Chemistry 394 Pages: 1719-1727
  • Peer Reviewed
• [Journal Article] Mechanism of surface-enhanced Raman scattering and its application to highly sensitive protein detection (2009)
  • Author(s): Yukihiro Ozaki
  • Journal Title: Spectroscopy and Spectral Analysis 29 Pages: 396-398
  • Peer Reviewed
• [Presentation] レーザートラップされた大腸菌の表面増強ラマン散乱 (2010)
  • Author(s): 北濱康孝
  • Organizer: 日本化学会第90春季年会(2010)
  • Place of Presentation: 近畿大学 東大阪
  • Year and Date: 2010-03-27
• [Presentation] レーザートラッピングによるチアシアニン色素分子の表面増強ラマン散乱 (2010)
  • Author(s): 柏原将人
  • Organizer: 日本化学会第90春季年会(2010)
  • Place of Presentation: 近畿大学東大阪
  • Year and Date: 2010-03-27
• [Presentation] Second Enhancement in Surface-Enhanced Resonance Raman Scattering (2009)
  • Author(s): 尾崎幸洋
  • Organizer: The Second Asian Spectroscopy Conference
  • Place of Presentation: ソウル・韓国
  • Year and Date: 2009-11-30
• [Presentation] パワー則を用いた定量的評価による表面増強ラマン散乱の明滅メカニズムの解明 (2009)
  • Author(s): 田中勇平
  • Organizer: 第3回分子科学討論会
  • Place of Presentation: 名古屋大学東山キャンパス
  • Year and Date: 2009-09-22
• [Presentation] チアカルボシアニン分子会合体の時間分解表面増強ラマン散乱 (2009)
  • Author(s): 北濱康孝
  • Organizer: 第3回分子科学討論会
  • Place of Presentation: 名古屋大学東山キャンパス
  • Year and Date: 2009-09-21
• [Presentation] Study on Blinking in Surface-Enhanced Resonance Raman Scattering of Thiacyanine Adsorbed on a Single Silver Nanoaggregate (2009)
  • Author(s): 尾崎幸洋
  • Organizer: The 12th Interanational Symposium on Electroanalytical Chemistry
  • Place of Presentation: Changchun・中国
  • Year and Date: 2009-08-14
• [Presentation] Blinking statistics in SERS of thiacyanine adsorbed on a single silver nanoaggregates using a power-law with exponential function (2009)
  • Author(s): 田中勇平
  • Organizer: 5th International Conference on Advanced Vibrational Spectroscopy(ICAVS5)
  • Place of Presentation: メルボルン・オーストラリア
  • Year and Date: 2009-07-14
• [Presentation] Surface-Enhanced Raman Scattering Based Detection Methods for Proteins (2009)
  • Author(s): Xiaoxia Han
  • Organizer: 5th International Conference on Advanced Vibrational Spectroscopy(ICAVS5)
  • Place of Presentation: メルボルン・オーストラリア
  • Year and Date: 2009-07-14
• [Presentation] Experimental Studies of SERS Two-Fold Electromagnetic Enhancement Theory (2009)
  • Author(s): 尾崎幸洋
  • Organizer: 5th International Conference on Advanced Vibrational Spectroscopy(ICAVS5)
  • Place of Presentation: メルボルン・オーストラリア
  • Year and Date: 2009-07-13
• [Presentation] 単一銀ナノ粒子凝集体に吸着したチアシアニン分子の表面増強ラマン散乱の明滅に関する研究 (2009)
  • Author(s): 尾崎幸洋
  • Organizer: 第70回分析化学討論会
  • Place of Presentation: 和歌山大学
  • Year and Date: 2009-05-17
• [Book] 9.4.3ラマン分光法、第3版 現代界面コロイド化学の基礎 (2009)
  • Author(s): 尾崎幸洋
  • Total Pages: 431-434
  • Publisher: 丸善
• [Remarks]
  • URL: http://sci-tech.ksc.kwansei.ac.jp/%7Eozaki/index.html