Investigation of nanoscale spatial heterogeneity in polymeric materials by using 3D single-molecule tracking techniques
| Project/Area Number |
23681023
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanomaterials/Nanobioscience
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| Research Institution | Osaka University |
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Principal Investigator |
ITO Syoji 大阪大学, 基礎工学研究科, 助教 (10372632)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
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| Keywords | １分子科学 / ナノ反応ダイナミクス計測 / 単一分子イメージング / 材料評価 / 超解像蛍光イメージング / 単一分子検出 / 単一分子蛍光イメージング / 1分子科学 / 単分子イメージング / 超解像 / 高分子 / 反応ダイナミクス |
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| Research Abstract |
In this project, we have focused on constructing single-molecule imaging apparatuses with three-dimensional (3D) resolution for the investigation of spatial heterogeneity at the molecular level in polymeric materials. To achieve 3D localization, two approaches were employed. The first one is so-called the astigmatism imaging method, in which a cylindrical lens was inserted into the imaging system to modify the shape of the fluorescent image of a single molecule depending on Z-position. The second approach is a structured illumination with a periodic intensity modulation along the Z-axis due to the interference of two laser beams. These imaging apparatuses provided the 3D resolution of several tens of nanometers. By using the 3D super-resolution techniques, we have clarified the mechanism of anomalous diffusion of guest molecules in polymer films. In addition, we have also succeeded in the visualization of spatial heterogeneity in polymeric materials.
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Report
(4 results)
Research Products
(96 results)
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[Journal Article] Constraint-induced structural deformation of planarized triphenylboranes in the excited state2014
Author(s)
Kushida, T. ; Camacho, C. ; Shuto, A. ; Irle, S. ; Muramatsu, M. ; Katayama, T. ; Ito, S. ; Nagasawa, Y. ; Miyasaka, H. ; Sakuda, E. ; Kitamura, N. ; Zhou, Z. ; Wakamiya, A. ; Yamaguchi, S.
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Journal Title
Chemical Science
Volume: 5
Issue: 4
Pages: 1296-1304
DOI
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Peer Reviewed
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[Journal Article] "Selective Optical Assembly of Highly Uniform Nanoparticles by Doughnut-Shaped Beams"2013
Author(s)
S. Ito*, H. Yamauchi , M. Tamura, S. Hidaka , H. Hattori, T. Hamada, K. Nishida , S. Tokonami , T. Itoh , H. Miyasaka, T. Iida*
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Journal Title
Scientific Reports (Nature Publishing Group)
Volume: 3
Issue: 1
Pages: 3047-3047
DOI
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Peer Reviewed
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[Journal Article] Photoinduced charge-transfer dynamics of sequentially aligned donor-acceptor systems in an ionic liquid2013
Author(s)
Muramatsu, M. ; Katayama, T. ; Ito, S. ; Nagasawa, Y. ; Matsuo, D. ; Suzuma, Y. ; Peng, L. ; Orita, A. ; Otera, J. ; Miyasaka, H.
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Journal Title
Photochemical & Photobiological Sciences
Volume: 12
Issue: 10
Pages: 1885-1894
DOI
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Peer Reviewed
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[Journal Article] Metallic-Nanostructure-Enhanced Optical Trapping of Flexible Polymer Chains in Aqueous Solution as Revealed by Confocal Fluorescence Microspectroscopy2012
Author(s)
Mariko Toshimitsu, Yuriko Matsumura, Tatsuya Shoji, Noboru Kitamura, Mai Takase, Kei Murakoashi, Hiroaki Yamauchi, Syoji Ito, Hiroshi Miyasaka, Yoshihiko Mizumoto, Hajime Ishihara, and Yasuyuki Tsuboi
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Journal Title
J. Phys. Chem. C
Volume: 116(dx.doi.org/10.1021/jp305247a)
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[Journal Article] Metallic-Nanostructure-Enhanced Optical Trapping of Flexible Polymer Chains in Aqueous Solution as Revealed by Confocal Fluorescence Microspectroscopy2012
Author(s)
M. Toshimitsu, Y. Matsumura, T. Shoji, N. Kitamura, M. Takase, K. Murakoshi, H. Yamauchi, S. Ito, H. Miyasaka, A. Nobuhiro, Y. Mizumoto, H. Ishihara, Y. Tsu
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Journal Title
J. Phys. Chem. C
Volume: 116
Issue: 27
Pages: 14610-14618
DOI
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Peer Reviewed
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[Presentation] 軸対称ベクトルビームによるプラズモニックナノ粒子の選択的光パターニング2014
Author(s)
伊都将司,山内宏昭,田村守,日高慎平,服部祐徳,濱田大地,西田敬亮,床波志保,伊藤民武,宮坂博,飯田琢也
Place of Presentation
青山学院大学相模原キャンパス
Year and Date
2014-03-17
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[Presentation] 光輻射力で創る化学反応場2013
Author(s)
伊都将司,山内宏昭,宮坂博,田中嘉人,吉川裕之,増原宏
Organizer
第60回応用物理学会春季学術講演会
Place of Presentation
神奈川工科大学
Year and Date
2013-03-27
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[Book] 発光の辞典
Author(s)
伊都将司, 宮坂博
Publisher
朝倉書店(印刷中)
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