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2006 Fiscal Year Annual Research Report

DNA自己組織化に基づくカーボンナノチューブアレイの構築

Research Project

Project/Area Number 17655085
Research InstitutionOsaka University

Principal Investigator

真嶋 哲朗  大阪大学, 産業科学研究所, 教授 (00165698)

Co-Investigator(Kenkyū-buntansha) 川井 清彦  大阪大学, 産業科学研究所, 助教授 (50314422)
Keywordsカーボンナノチューブ / DNA / 単一分子分光
Research Abstract

アレイ化したカーボンナノチューブを可視化することを目的とし、全反射蛍光顕微鏡を用いた単一分子蛍光顕微分光システムの構築を行った。具体的には、分光器および高感度CCDカメラを備え付けた全反射蛍光顕微鏡を開発した。本顕微分光システムの性能を評価するため、以下の研究を行った。二酸化チタン光触媒反応によって生成した一重項酸素などの酸素活性種を蛍光プローブにより単一分子レベルで検出することに成功した。二酸化チタン反応によって生成した一重項酸素は空気中へ飛散し、2mm以上離れた距離まで到達することを明らかにした。また、ペリレンナノ結晶の初期成長過程を水溶液中でその場観察することに成功し、種結晶形成機構に関する知見を得た。以上の結果から、本顕微分光システムが、単一ナノ材料の光誘起反応ならびに動的挙動の検出において強力な手法であることが明らかとなった。また、カーボンナノチューブと複合化させる自己組織化DNAにおける電荷移動機構を明らかにするため、レーザーフラッシュフォトリシス法による検討を行った。任意の塩基配列群をビルディングブロックとして用いることによりDNA中の電荷移動ダイナミクスを制御することに成功した。単層および多層カーボンナノチューブに蛍光色素を化学的に修飾し、カーボンナノチューブアレイの単一アレイ蛍光検出を行った。個々の蛍光色素修飾カーボンナノチューブアレイからの蛍光を検出することにより、集合体のサイズ、色素修飾率、光退色速度などを単一アレイレベルで評価した。

  • Research Products

    (58 results)

All 2007 2006

All Journal Article (51 results) Book (3 results) Patent(Industrial Property Rights) (4 results)

  • [Journal Article] Intermolecular Electron Transfer from Excited Benzophenone Ketyl Radical2007

    • Author(s)
      Masanori Sakamoto
    • Journal Title

      J. Phys. Chem. A 111・2

      Pages: 223-229

  • [Journal Article] One-electron Oxidation of alcohols by trimehtoxybenzne radical cation in the excited state during two-color two-laser flash photolysis2007

    • Author(s)
      Xichen Cai
    • Journal Title

      J. Phys. Chem. A (in press)

  • [Journal Article] Relationship between hole transfer rate and photosensitizwed DNA damage : importance of adenine oxidation damage2007

    • Author(s)
      Kiyohiko Kawai
    • Journal Title

      J. Phys. Chem. B (in press)

  • [Journal Article] Energy Levels of Oligothiophenes in the Higher Excited Triplet States2007

    • Author(s)
      Yosuke Oseki
    • Journal Title

      J. Phys. Chem. C 111・2

      Pages: 1024-1028

  • [Journal Article] Fluorescence Properties of Si-linked Oligothiophenes2007

    • Author(s)
      Mamoru Fujitsuka
    • Journal Title

      J. Phys. Chem. C 111・5

      Pages: 1993-1998

  • [Journal Article] Donor-Acceptor Substituted Tetrakis(phenylethynyl)benzenes as Emissive Molecules during Pulse Radiolysis in Benzene2007

    • Author(s)
      Shingo Samori
    • Journal Title

      J. Org. Chem. (in press)

  • [Journal Article] C-O Bond Cleavage o Ester Group having a Naphthyl Grounp in the Higher Excited State during Two-color Two-laser Flash Photolysis2007

    • Author(s)
      Xichen Cai
    • Journal Title

      Chem. Eur. J. (in press)

  • [Journal Article] Hole transfer rates in A-from DNA/2'-OMeRNA hybrid2007

    • Author(s)
      Kiyohiko Kawai
    • Journal Title

      Chem. Eur. J. (in press)

  • [Journal Article] Photochemical Formation of Au/Cu Bimetallic Nanoparticles with Different Shapes and Sizes in a PVA Film2007

    • Author(s)
      Masanori Sakamoto
    • Journal Title

      Adv. Functional Mater. (in press)

  • [Journal Article] S2- and S1-States Properties of Zinc Porphyrin Polypeptides2007

    • Author(s)
      Mamoru Fujitsuka
    • Journal Title

      J. Photochem. Photobiol. A (in press)

  • [Journal Article] Monitoring G-Quadruplex Structures and G-Quadruplex-ligand Complex by 2-Aminopurine Modified Oligonucleotide2007

    • Author(s)
      Takumi Kimura
    • Journal Title

      Tetrahedron (in press)

  • [Journal Article] Spin-correlated Radical Pairs in the Synthetic Hairpin DNA2007

    • Author(s)
      Satoru Nakajima
    • Journal Title

      ChemPhysChem. (in press)

  • [Journal Article] Charge Transfer through DNA Nanoscaled Assembly Programmable with DNA Building Blocks2006

    • Author(s)
      Yasuko Osakada
    • Journal Title

      Proc. Nat. Acad. Sci. U.S.A. 103・48

      Pages: 18072-18076

  • [Journal Article] Temperature-Driven Oxygenation Rate Control by Polymeric Photosensitizer2006

    • Author(s)
      Hisao Koizumi
    • Journal Title

      J. Am. Chem. Soc. (Communication) 128・27

      Pages: 8751-8753

  • [Journal Article] Rapid Long-Distance Hole Transfer through a Consecutive Adenine Sequence2006

    • Author(s)
      Tadao Takada
    • Journal Title

      J. Am. Chem. Soc. (Communication) 128・34

      Pages: 11012-11013

  • [Journal Article] In Situ and Ex Situ Observations of the Growth Dynamics of Single Perylene Nanocrystals in Water2006

    • Author(s)
      Takashi Tachikawa
    • Journal Title

      J. Am. Chem. Soc. (Communication) 128・50

      Pages: 15944-15945

  • [Journal Article] Single-Molecule Detection of Airbone Singlet Oxygen2006

    • Author(s)
      Kazuya Naito
    • Journal Title

      J. Am. Chem. Soc. (Communication) 128・51

      Pages: 16340-16341

  • [Journal Article] Transannular Distance Dependence of Stabilization Energy of the Intramolecular Dimer Radical Cation of Cyclophanes2006

    • Author(s)
      Mamoru Fujitsuka
    • Journal Title

      J. Phys. Chem. A 110・17

      Pages: 5735-5739

  • [Journal Article] Photodissociation of Naphthalene Dimer Radical Cation during the Two-Color Two-Laser Flash Photolysis and Pulse Radiolysis-Laser Flash Photolysis2006

    • Author(s)
      Xichen Cai
    • Journal Title

      J. Phys. Chem. A 110・30

      Pages: 9319-9324

  • [Journal Article] Properties and Reactivity of Xanthyl Radical in the Excited State2006

    • Author(s)
      Masanori Sakamoto
    • Journal Title

      J. Phys. Chem. A 110・32

      Pages: 9788-9792

  • [Journal Article] Solvent Effect on the Deactivation Processes of Benzophenone Ketyl Radicals in the Excited State2006

    • Author(s)
      Masanori Sakamoto
    • Journal Title

      J. Phys. Chem. A 110・42

      Pages: 11800-11808

  • [Journal Article] S-S Bond Mesolysis in alpha, alpha'-Dinaphthyl Disulfide Radical Anion Generated during -Radiolysis and Pulse Radiolysis in Organic Solution2006

    • Author(s)
      Minoru Yamaji
    • Journal Title

      J. Phys. Chem. A 110・50

      Pages: 13487-13491

  • [Journal Article] Intramolecular Exciplex and Intermolecular Excimer Formation of 1,8-Naphthalimide-linker-Phenothiazine Dyads2006

    • Author(s)
      Dae Won Cho
    • Journal Title

      J. Phys. Chem. B 110・10

      Pages: 4576-4582

  • [Journal Article] Intramolecular Electron Transfer from Axial Ligand to S2-Excited Sb-Tetraphenylporphyrin2006

    • Author(s)
      Mamoru Fujitsuka
    • Journal Title

      J. Phys. Chem. B (Letter) 110・19

      Pages: 9368-9370

  • [Journal Article] Photoinduced Electron Transfer Processes in 1,8-Naphthalimide-linker-Phenothiazine Dyads2006

    • Author(s)
      Dae Won Cho
    • Journal Title

      J. Phys. Chem. B 110・23

      Pages: 11062-11068

  • [Journal Article] Singlet Energy Migration along Alternating Block Copolymer of Oligothiophene and Oligosilylene in Solution2006

    • Author(s)
      Mamoru Fujitsuka
    • Journal Title

      J. Phys. Chem. B 110・25

      Pages: 12446-12450

  • [Journal Article] Visible Light-Induced Degradation of Ethylene Glycol on Nitrogen-doped TiO_2 Powders2006

    • Author(s)
      Takashi Tachikawa
    • Journal Title

      J. Phys. Chem. B 110・26

      Pages: 13158-13165

  • [Journal Article] Emission from Charge Recombination during the Pulse Radiolysis of Arylethynylpyrenes2006

    • Author(s)
      Shingo Samori
    • Journal Title

      J. Phys. Chem. B 110・26

      Pages: 13296-13303

  • [Journal Article] Photoinduced Charge Separation in Titania Nanotubes2006

    • Author(s)
      Takashi Tachikawa
    • Journal Title

      J. Phys. Chem. B (Letter) 110・29

      Pages: 14055-14059

  • [Journal Article] Monitoring the DNA Binding and Dissociation Events by Observing the Local Structural and Environmental Changes in the Dimer Interface of BamHI Using a Solvatochromic Dansyl Fluorophore2006

    • Author(s)
      Koji Nakayama
    • Journal Title

      J. Phys. Chem. B 110・42

      Pages: 21311-21318

  • [Journal Article] Probing the Surface Adsorption and Photocatalytic Degradation of Catechols on the TiO_2 by Solid-State NMR Spetroscopy2006

    • Author(s)
      Takashi Tachikawa
    • Journal Title

      Langmuir (Letter) 22・3

      Pages: 893-896

  • [Journal Article] Acceleration of Laser Induced Formation of Gold Nanoparticles in a PVA Film2006

    • Author(s)
      Shingo Samori
    • Journal Title

      Langmuir 22・14

      Pages: 6361-6366

  • [Journal Article] Reactivity of Triaryphosphine Peroxyl Radical Cations Generated through the Reaction of Triaryphosphine Radical Cations with Oxygen2006

    • Author(s)
      Sachiko Tojo
    • Journal Title

      J. Org. Chem. 71・21

      Pages: 8227-8232

  • [Journal Article] Probing of microenvironments in the grooves of Z-DNA using dan-modified oligonucleotides2006

    • Author(s)
      Takumi Kimura
    • Journal Title

      Chem. Commun.

      Pages: 1542-1544

  • [Journal Article] Emission from charge recombination during the pulse radiolysis of 9-cyano-10-phenylethynylanthracenes with donor and acceptor substituents2006

    • Author(s)
      Shingo Samori
    • Journal Title

      J. Org. Chem. 71・23

      Pages: 8732-8739

  • [Journal Article] Detection of G-quadruplex-TMPyP4 Complex by 2-Aminopurine Modified Human Telomeric DNA2006

    • Author(s)
      Takumi Kimura
    • Journal Title

      Chem. Commun.

      Pages: 401-402

  • [Journal Article] Thermodynamic properties of branched DNA complexes with full-matched and mismatched DNA strand2006

    • Author(s)
      Masayuki Endo
    • Journal Title

      Chem. Commun.

      Pages: 2329-2331

  • [Journal Article] Effects of reaction rate of radical anion of a photosensitizer with molecular oxygen on the photosensitized DNA damage2006

    • Author(s)
      Kiyohiko Kawai
    • Journal Title

      Chem. Commun.

      Pages: 3918-3920

  • [Journal Article] Effects of substituents on aryl groups during the reaction of triarylphosphine radical cation and oxygen2006

    • Author(s)
      Shinro Yasui
    • Journal Title

      Org. Biomol. Chem. 4

      Pages: 2969-2973

  • [Journal Article] Formation of Pyrene Dimer Radical Cation at the Minor Groove of DNA2006

    • Author(s)
      Kiyohiko Kawai
    • Journal Title

      Bull. Chem. Soc. Jpn. 79・2

      Pages: 312-316

  • [Journal Article] High Yield Generation of Long-Lived Charge-Separated State in Diphenylacetylene-Modified DNA2006

    • Author(s)
      Tadao Takada
    • Journal Title

      Angew. Chem. Int. Ed. 45・1

      Pages: 120-122

  • [Journal Article] Properties of Excited Ketyl Radicals of Benzophenone Analogues Depending on the Size and Electronic Character of Aromatic Rings2006

    • Author(s)
      Masanori Sakamoto
    • Journal Title

      Chem. Eur. J. 12・6

      Pages: 1610-1617

  • [Journal Article] One-Electron Redox Processes during the Polyoxometalate-Mediated TiO_2 Photocatalytic Reactions Studied by Two-Color Two-Laser Flash Photolysis2006

    • Author(s)
      Takashi Tachikawa
    • Journal Title

      Chem. Eur. J. 12・11

      Pages: 3124-3131

  • [Journal Article] Pyrene-Stacked Nanostructures Constructed in the Tabacco Mosaic Virus Rod Scaffold2006

    • Author(s)
      Masayuki Endo
    • Journal Title

      Chem. Eur. J. 12・14

      Pages: 3735-3740

  • [Journal Article] α-Carbonyl Substituent Effect on the Lifetimes of Triplet 1,4-Biradicals from Norrish Type II Reaction2006

    • Author(s)
      Xichen Cai
    • Journal Title

      Chem. Eur. J. 12・17

      Pages: 4662-4667

  • [Journal Article] One-Electron Oxidation Pathways during beta-Cyclodextrin-Modified TiO2 Photocatalytic Reactions2006

    • Author(s)
      Takashi Tachikawa
    • Journal Title

      Chem. Eur. J. 12・29

      Pages: 7585-7594

  • [Journal Article] Two-color Two-laser Fabrication of Gold Nanoparticles in a PVA Film2006

    • Author(s)
      Masanori Sakamoto
    • Journal Title

      Chem. Phys. Lett. 420・1-3

      Pages: 90-94

  • [Journal Article] Photophysical and photochemical properties of corannulenes studied by emission and optoacoustic measurements, laser flash photolysis and pulse radiolysis2006

    • Author(s)
      Minoru Yamaji
    • Journal Title

      Chem. Phys. Lett. 425・1-3

      Pages: 53-57

  • [Journal Article] Direct Fluorescence Measurement of Excited Radical Cations of 1,3,4-Trimethoxybenzene by ns-ps Two-color Two-laser Flash Photolysis2006

    • Author(s)
      Xichen Cai
    • Journal Title

      Chem. Phys. Lett. 432・4-6

      Pages: 436-440

  • [Journal Article] Important Factors for the Formation of Radical Cations of Stilbene and Substituted Stilbenes during Resonant Two-Photon Ionization with a 266- or 355-nm Laser2006

    • Author(s)
      Shingo Samori
    • Journal Title

      J. Photochem. Photobiol. A 179・1-2

      Pages: 115-124

  • [Journal Article] Emission from Charge Recombination between Radical Cations and Radical Anions of 9-Cycano-10-(p-substituted phenyl)anthracene Generated during Pulse Radiolysis2006

    • Author(s)
      Shingo Samori
    • Journal Title

      J. Chinese Chem. Soc. 53・6

      Pages: 1225-1234

  • [Book] Photochemistry of Short-lived Species using Multi-beam Irradiation2007

    • Author(s)
      M.Fujitsuka, T.Majima
    • Total Pages
      57
    • Publisher
      John Wiley & Sons, Inc.
  • [Book] DNA Supramolecular Structures for the Creation of Functional Nannomaterials in Soft Nanomaterials2007

    • Author(s)
      M.Endo, T.Majima
    • Publisher
      American Scientific Publishers, Valencia, California, USA (in press)
  • [Book] 電子線エネルギーの吸収と高励起状態、光応用技術・材料事典2006

    • Author(s)
      真嶋哲朗
    • Total Pages
      3
    • Publisher
      (株)産業技術サービスセンター
  • [Patent(Industrial Property Rights)] 金属ナノ粒子の形成方法2006

    • Inventor(s)
      真嶋哲朗, 坂本雅典, 立川貴士, 藤塚守
    • Industrial Property Rights Holder
      大阪大学
    • Industrial Property Number
      特願2006-121694
    • Filing Date
      2006-04-26
  • [Patent(Industrial Property Rights)] 媒体中に金属ナノ粒子を形成する方法2006

    • Inventor(s)
      真嶋哲朗, 坂本雅典, 立川貴士, 藤塚守
    • Industrial Property Rights Holder
      大阪大学
    • Industrial Property Number
      特願2006-142132
    • Filing Date
      2006-05-22
  • [Patent(Industrial Property Rights)] DNAナノブロックを利用したDNAナノエレクトロニクス2006

    • Inventor(s)
      真嶋哲朗, 川井清彦, 小阪田泰子, 藤塚守
    • Industrial Property Rights Holder
      大阪大学
    • Industrial Property Number
      特願2006-291734
    • Filing Date
      2006-10-26
  • [Patent(Industrial Property Rights)] 活性酸素種を単一分子レベルで検出する方法2006

    • Inventor(s)
      真嶋哲朗, 立川貴士, 藤塚守
    • Industrial Property Rights Holder
      大阪大学
    • Industrial Property Number
      特願2006-316047
    • Filing Date
      2006-11-22

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Published: 2008-05-08   Modified: 2016-04-21  

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