Microscopic Chemical State Analysis Based on Chemical Shift in Soft X-ray Inner-shell Excitation
Project/Area Number |
17H03013
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Physical chemistry
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Research Institution | High Energy Accelerator Research Organization (2018-2019) Institute for Molecular Science (2017) |
Principal Investigator |
KOSUGI Nobuhiro 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 所長 (20153546)
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Co-Investigator(Kenkyū-buntansha) |
大東 琢治 分子科学研究所, 極端紫外光研究施設, 助教 (50375169)
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2019: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2017: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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Keywords | 量子ビーム / 内殻励起 / X線顕微分光 / その場観測 / マイクロ流路 / 薬物伝達 / X線顕微分光 |
Outline of Final Research Achievements |
Our theoretical approaches have predicted small chemical shifts in molecular inner-shell excitations at chemically different sites. Based on this idea, we have developed and improved nanoscale and microscale soft X-ray absorption spectromicroscopic techniques with in situ sample cells and successfully applied them to binary liquid reactions in microfluidic devices and to transdermal drug delivery systems, to get chemical shift images by less than 10 meV for chemical state mappings of reactive sites and inhomogeneous molecular distributions.
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Academic Significance and Societal Importance of the Research Achievements |
独自開発した軟X線吸収試料セルを組み込んだナノスケール、マイクロスケールの顕微鏡の集光系を、対象となる試料の状態に応じて、改良・最適化することに成功したことは、国際的に独創的な技術革新となっている。新しい反応系を設計できるマイクロ流路や効率的な塗り薬開発に重要な経皮薬物輸送の研究にこれらの装置を応用し、特定分子の化学的環境のナノスケール及びマイクロスケールのイメージングが実現したことは、放射光顕微技術の発展に伴って研究対象が均一系から不均一系に拡大している放射光軟X線分野における学術研究の新しい展開につながるものとなっている。
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Report
(4 results)
Research Products
(51 results)
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[Journal Article] Effect of Fe2O3 coating on ZnO nanowires in photoelectrochemical water splitting: A synchrotron x-ray spectroscopic and spectromicroscopic investigation2020
Author(s)
Lu Y.R., Wang Y.F., Chang H.W., Huang Y.C., Chen J.L., Chen C.L., Lin Y.C., Lin Y.G., Pong Way-Faung, Ohigashi Takuji, Kosugi Nobuhiro, Kuo C.H., Chou W.C., Dong C.L.
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Journal Title
Solar Energy Materials and Solar Cells
Volume: 209
Pages: 110469-110469
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Hybrid films of cellulose nanofibrils, chitosan and nanosilica?Structural, thermal, optical, and mechanical properties2019
Author(s)
Ismail Mostafa Y., Patanen Minna, Sirvioe Juho Antti, Visanko Miikka, Ohigashi Takuji, Kosugi Nobuhiro, Huttula Marko, Liimatainen Henrikki
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Journal Title
Carbohydrate Polymers
Volume: 218
Pages: 87-94
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Highly Efficient 2D/3D Hybrid Perovskite Solar Cells via Low-Pressure Vapor-Assisted Solution Process2018
Author(s)
M-H. Li, H-H Yeh, U-S. Jeng, C-J. Su, H-W. Shiu, Y-J. Hsu, N. Kosugi, T. Ohigashi, Y-A. Chen, P-S. Shen, P. Chen, T-F. Guo
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Journal Title
Advanced Materials
Volume: 30
Issue: 30
Pages: 1801401-1801401
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Origin of Magnetic properties in carbon Implanted ZnO nanowires2018
Author(s)
Y.F. Wang, Y.C. Shao, S.H. Hsieh, Y.K. Chang, P.H. Yeh, H.C. Hsueh, J.W. Chiou, H.T. Wang, S.C. Ray, H.M. Tsai, C.W. Pao, C.H. Chen, H.J. Lin, J.F. Lee, C.T. Wu, J.J. Wu, Y.M. Chang, K. Asokan, K.H. Chae, T. Ohigashi, Y. Takagi, T. Yokoyama, N. Kosugi, W.F. Pong
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Journal Title
Scientific Reports
Volume: 8
Issue: 1
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] STXM Chemical Mapping of Norway Spruce Knotwood Lignans2018
Author(s)
M. Huttula, M. Patanen, R. Piispanen, T. Ohigashi, N. Kosugi, S. Swaraj, R. Belkhou, A. Pranovich, T. Jyske, P. Kilpelainen, A. Karkonen, R. Korpinen, T. Laakso, S. Valkonen and P. Saranpaa
Organizer
14th International Conference on X-ray Microscopy, XRM2018
Related Report
Int'l Joint Research
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[Presentation] Probing the Electronic Structure of BiVO4 Coated ZnO Nanodendrite Core- Shell Nanocomposite Using X-ray Spectroscopic and Spatially Resolved Scanning Transmission2018
Author(s)
M.M. Shirolkar, Y.F. Wang, Y.C. Shao, K.H. Chen, H.T. Wang, X.S. Qiu, J.S. Yang, J.J. Wu, J.W. Chiou, T. Ohigashi, N. Kosugi, W.F. Pong
Organizer
14th International Conference on X-ray Microscopy, XRM2018
Related Report
Int'l Joint Research
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