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

Nanoscale imaging of biocatalytic activity with redox-responsive fluorescent probes

Research Project

Project/Area Number 23655009
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Physical chemistry
Research InstitutionOsaka University

Principal Investigator

TACHIKAWA Takashi  大阪大学, 産業科学研究所, 助教 (20432437)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords蛍光イメージング / 単一分子 / 触媒 / 生体触媒
Research Abstract

Nano-sized catalysts such as enzymes and inorganic nanoparticles have both potential and demonstrated applications for use in (bio)chemical synthesis and energy production. In this study, we developed new fluorescence probes for molecular adsorption and interfacial electron transfer reactions on individual nanocatalysts. The synthesized BODIPY-based fluorescence probes, which have one or two sulfonate groups and a dinitrophenyl group as a redox reaction site, were used to investigate the photoinduced electron transfer reactions over catalysts at the single-particle, single-molecule levels. We also applied single-molecule-based super-resolution fluorescence microscopy with catechol-modified BODIPY to identify the locations of effective adsorption sites on metal oxide surfaces.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (21 results)

All 2013 2012 2011 Other

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (9 results) (of which Invited: 1 results) Remarks (1 results)

  • [Journal Article] Single-Molecule Fluorescence Detection of Effective Adsorption Sites at the Metal Oxide-Solution Interface2013

    • Author(s)
      Takashi Tachikawa, Tatsuya Ohsaka, Zhenfeng Bian, Tetsuro Majima
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 117 Issue: 21 Pages: 11219-11228

    • DOI

      10.1021/jp402144h

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Super-Resolution Mapping of Reactive Sites on Titania-Based Nanoparticles with Water-Soluble Fluorogenic Probes2013

    • Author(s)
      T. Tachikawa, T. Yonezawa, T. Majima
    • Journal Title

      ACS Nano

      Volume: 7 Issue: 1 Pages: 263-275

    • DOI

      10.1021/nn303964v

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of InterparticleCharge Transfers in Agglomerated Photocatalyst Nanoparticles: Demonstration in Dye-Sensitized TiO2System2013

    • Author(s)
      Y. Park, T.Tachikawa, T. Majima
    • Journal Title

      J. Phys. Chem. Lett

      Volume: 4 Issue: 1 Pages: 189-194

    • DOI

      10.1021/jz301881d

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photocatalytic oxidation surfaces on anatase TiO2crystal revealed by single-particle chemiluminescence imaging2012

    • Author(s)
      T. Tachikawa, T. Majima
    • Journal Title

      Chem. Commun.

      Volume: 48 Issue: 27 Pages: 3300-3302

    • DOI

      10.1039/c2cc30597f

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Superior Electron Transport and Photocatalytic Abilities of Metal-Nanoparticle-Lbaded Ti02 Superstructures2012

    • Author(s)
      Zhenfeng Bian
    • Journal Title

      Journal of Physical Chemistry C

      Volume: 116 Issue: 48 Pages: 25444-25453

    • DOI

      10.1021/jp309683f

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Selective Oxidative Degradation of Organic Pollutants by Singlet Oxygen-Mediated Photosensitization: Tin Porphyrin versus C60Aminofullerene Systems2012

    • Author(s)
      H. Kim, T. Tachikawa, T. Majima
    • Journal Title

      Environ. Sci. Technol

      Volume: 46 Issue: 17 Pages: 9606-9613

    • DOI

      10.1021/es301775k

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Superstructure of Ti02 Crystalline Nanoparticles Yields Effective Conduction Pathways for Photogenerated Charges2012

    • Author(s)
      Zhenfeng Bian
    • Journal Title

      Journal of Physical Chemistry Letters

      Volume: 3 Issue: 11 Pages: 1422-1427

    • DOI

      10.1021/jz3005128

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Single-molecule charge transfer dynamics in dye-sensitized p-type NiO solar cells : influences of insulating Al_2O_3 layers2012

    • Author(s)
      Zhenfeng Bian
    • Journal Title

      Chemical Science

      Volume: 3 Issue: 2 Pages: 370-379

    • DOI

      10.1039/c1sc00552a

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Interfacial electron transfer dynamics in dye-modified graphene oxide nanosheets studied by single-molecule fluorescence spectroscopy2012

    • Author(s)
      T. Tachikawa, M. Fujitsuka, T. Majima
    • Journal Title

      Phys. Chem. Chem. Phys

      Volume: 14 Issue: 12 Pages: 4244-4249

    • DOI

      10.1039/c2cp23317g

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] pH-Inducedintramolecular folding dynamics of i-motif DNA2011

    • Author(s)
      Jungkweon Choi, Mamoru Fujitsuka, Tetsuro Majima
    • Journal Title

      Journal of the American Chemical Society

      Volume: Vol.133 Issue: 40 Pages: 16146-16153

    • DOI

      10.1021/ja2061984

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evidence for Crystal-Face-Dependent TiO2Photocatalysis from Single-Molecule Imaging and Kinetic Analysis2011

    • Author(s)
      T. Tachikawa, S. Yamashita, T. Majima
    • Journal Title

      J. Am. Chem. Soc

      Volume: 133 Issue: 18 Pages: 7197-7204

    • DOI

      10.1021/ja201415j

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] 単一分子蛍光分光法によるAu/TiO_2 複合ナノ粒子の光触媒活性評価2013

    • Author(s)
      立川 貴士
    • Organizer
      光化学討論会2013
    • Place of Presentation
      愛媛大学・城北地区(愛媛県)
    • Year and Date
      2013-09-13
    • Related Report
      2013 Final Research Report
  • [Presentation] TiO_2 メソ結晶における位置選択的光還元反応2013

    • Author(s)
      立川 貴士・Z. Bian・真嶋 哲朗
    • Organizer
      日本化学会第93春季年会
    • Place of Presentation
      立命館大学びわこ・くさつキャンパス(滋賀県)
    • Year and Date
      2013-03-25
    • Related Report
      2013 Final Research Report
  • [Presentation] Single-molecule fluorescence imaging of TiO_2 photocatalytic reactions2013

    • Author(s)
      立川 貴士
    • Organizer
      日本化学会第93春季年会 アジア国際シンポジウム-光化学ディビジョン-
    • Place of Presentation
      立命館大学びわこ・くさつキャンパス(滋賀県)
    • Year and Date
      2013-03-24
    • Related Report
      2013 Final Research Report
  • [Presentation] 二酸化チタン光触媒反応機構に関する研究2013

    • Author(s)
      立川貴士
    • Organizer
      光化学討論会2013
    • Place of Presentation
      愛媛大学・城北地区
    • Related Report
      2013 Annual Research Report
  • [Presentation] Single-molecule fluorescence imaging of TiO2 photocatalytic reactions2013

    • Author(s)
      立川貴士
    • Organizer
      日本化学会第93春季年会
    • Place of Presentation
      立命館大学びわこ・くさつキャンパス
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] TiO2メソ結晶における位置選択的光還元反応2013

    • Author(s)
      立川貴士
    • Organizer
      日本化学会第93春季年会
    • Place of Presentation
      立命館大学びわこ・くさつキャンパス
    • Related Report
      2012 Research-status Report
  • [Presentation] TiO2メソ結晶中における高効率粒子間電荷移動の観測2012

    • Author(s)
      立川貴士
    • Organizer
      光化学討論会2012
    • Place of Presentation
      東京工業大学・大岡山キャンパス
    • Related Report
      2012 Research-status Report
  • [Presentation] 酸化チタン光触媒反応における結晶面依存性の単一分子蛍光観察2012

    • Author(s)
      立川貴士
    • Organizer
      第31回 固体・表面光化学討論会
    • Place of Presentation
      大阪大学・吹田キャンパス
    • Related Report
      2012 Research-status Report
  • [Presentation] 多孔性有機-金属構造体における光誘起電子移動反応2011

    • Author(s)
      立川 貴士
    • Organizer
      光化学討論会2011
    • Place of Presentation
      宮崎市民プラザ (宮崎県)
    • Related Report
      2011 Research-status Report
  • [Remarks]

    • URL

      http://www.sanken.osaka-u.ac.jp/labs/mec/index.html

    • Related Report
      2013 Final Research Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi