Researcher Profile and Settings

Researcher

• Name

  SHIMOAKA Takafumi

Profile and Settings

• Name

  Shimoaka, Takafumi

Alternate Names

• Takafumi Shimoaka

Affiliation

• Gunma University, Division of Molecular Science, Graduate School of Science and Technology

Education

• Apr. 2008, Mar. 2011, Hiroshima University, Graduate School of Science, Department of Chemistry
• Apr. 2006, Mar. 2008, Hiroshima University, Graduate School of Science, Department of Chemistry
• Apr. 2002, Mar. 2006, Hiroshima University, Faculty of Science, Department of Chemistry

Degree

• Dr. Sc.

Research Activities

Research Areas

• Nanotechnology/Materials, Analytical chemistry
• Nanotechnology/Materials, Basic physical chemistry

Published Papers

• Phonon modes controlled by primary chemical structure of partially fluorinated dimyristoylphosphatidylcholine (DMPC) revealed by multiple-angle incidence resolution spectrometry (MAIRS), Takeshi Hasegawa; Ai Nakagawara; Toshiyuki Takagi; Takafumi Shimoaka; Nobutaka Shioya; Masashi Sonoyama, 14 Feb. 2024, The Journal of Chemical Physics, 160, 064704, Scientific journal

  DOI
• Molecular Orientations of Myristic Acid Derivatives with Different Perfluoroalkyl Chain Lengths at the Air/Water Interface Evaluated by Heterodyne-Detected Sum Frequency Generation Spectroscopy, Yuki Nojima; Takafumi Shimoaka; Takeshi Hasegawa; Taka-aki Ishibashi, 29 Jun. 2023, The Journal of Physical Chemistry C, 127, 25, 12349, 12356, Scientific journal

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• Insights on the Molecular Orientation of Oligo(p-phenylene vinylene) Derivatives with Alkyl Chains in Langmuir Films, Takafumi Shimoaka; Yuta Yamaguchi; Nobutaka Shioya; Ayyappanpillai Ajayaghosh; Taizo Mori; Katsuhiko Ariga; Takeshi Hasegawa, 09 May 2023, The Journal of Physical Chemistry C, Scientific journal

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• Structural Rearrangement of Organic Semiconductor Molecules with an Asymmetric Shape in Thin Films, Takayuki Oka; Nobutaka Shioya; Takafumi Shimoaka; Takeshi Hasegawa, 11 Apr. 2023, The Journal of Physical Chemistry C, Scientific journal

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• Conformational Change of Alkyl Chains at Phase Transitions in Thin Films of an Asymmetric Benzothienothiophene Derivative, Nobutaka Shioya; Mariko Yoshida; Masamichi Fujii; Takafumi Shimoaka; Riku Miura; Shingo Maruyama; Takeshi Hasegawa, 16 Dec. 2022, The Journal of Physical Chemistry Letters, 11918, 11924, Scientific journal

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• Stereoisomer-dependent conversion of dinaphthothienothiophene precursor films, Nobutaka Shioya; Masamichi Fujii; Takafumi Shimoaka; Kazuo Eda; Takeshi Hasegawa, Dec. 2022, Scientific Reports, 12, 1, Scientific journal

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• Chemometric analysis of mixtures in molecular aggregated systems, Takafumi Shimoaka, Jul. 2022, ANALYTICAL SCIENCES, 38, 7, 919, 920

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• Perfluoroalkanes remain on water surface even after volatilization: Affinity analysis of fluorinated solvent with water surface, Takafumi Shimoaka; Aki Fukumi; Nobutaka Shioya; Takeshi Hasegawa, Apr. 2022, Journal of Colloid and Interface Science, 611, 390, 396, Scientific journal

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• Control of supramolecular organizations by coordination bonding in tetrapyridylporphyrin thin films, Kazutaka Tomita; Nobutaka Shioya; Takafumi Shimoaka; Masayuki Wakioka; Takeshi Hasegawa, 2022, Chemical Communications, 58, 13, 2116, 2119, Scientific journal

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• Absolute Absorption Cross Section and Orientation of Dangling OH Bonds in Water Ice, Takumi Nagasawa; Reo Sato; Takeshi Hasegawa; Naoki Numadate; Nobutaka Shioya; Takafumi Shimoaka; Takeshi Hasegawa; Tetsuya Hama, 01 Dec. 2021, The Astrophysical Journal Letters, 923, 1, L3, L3, Scientific journal

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• Formation of trans-Poly(thienylenevinylene) Thin Films by Solid-State Thermal Isomerization, Masayuki Wakioka; Natsumi Yamashita; Hiroki Mori; Richard Murdey; Takafumi Shimoaka; Nobutaka Shioya; Atsushi Wakamiya; Yasushi Nishihara; Takeshi Hasegawa; Fumiyuki Ozawa, 13 Jul. 2021, Chemistry of Materials, 33, 14, 5631, 5638, Scientific journal

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• Substrate-Independent Control of Polymorphs in Tetraphenylporphyrin Thin Films by Varying the Solvent Evaporation Time Using a Simple Spin-Coating Technique, Kazutaka Tomita; Nobutaka Shioya; Takafumi Shimoaka; Koji K. Okudaira; Hiroyuki Yoshida; Tomoyuki Koganezawa; Takeshi Hasegawa, 02 Jul. 2021, Crystal Growth & Design, 21, 9, 5116, 5125, Scientific journal

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• Monitoring of Crystallization Process in Solution-Processed Pentacene Thin Films by Chemical Conversion Reactions, Nobutaka Shioya; Ryoi Fujiwara; Kazutaka Tomita; Takafumi Shimoaka; Koji K. Okudaira; Hiroyuki Yoshida; Tomoyuki Koganezawa; Takeshi Hasegawa, Feb. 2021, JOURNAL OF PHYSICAL CHEMISTRY C, 125, 4, 2437, 2445, Scientific journal

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• Supramolecular double-stranded Archimedean spirals and concentric toroids, Norihiko Sasaki; Mathijs F. J. Mabesoone; Jun Kikkawa; Tomoya Fukui; Nobutaka Shioya; Takafumi Shimoaka; Takeshi Hasegawa; Hideaki Takagi; Rie Haruki; Nobutaka Shimizu; Shin-ichi Adachi; E. W. Meijer; Masayuki Takeuchi; Kazunori Sugiyasu, Dec. 2020, Nature Communications, 11, 1, Scientific journal

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• In vivo characterization of the structures of films of a fatty acid and an alcohol adsorbed on the skin surface, Tetsuya Hama; Akira Kouchi; Naoki Watanabe; Nobutaka Shioya; Takafumi Shimoaka; Takeshi Hasegawa, Nov. 2020, Biophysical Chemistry, 266, 106459, 106459, Scientific journal

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• Quantitative Anisotropic Analysis of Molecular Orientation in Amorphous N2O at 6 K by Infrared Multiple-Angle Incidence Resolution Spectrometry, Tetsuya Hama; Atsuki Ishibashi; Akira Kouchi; Naoki Watanabe; Nobutaka Shioya; Takafumi Shimoaka; Takeshi Hasegawa, 08 Sep. 2020, The Journal of Physical Chemistry Letters, 11, 18, 7857, 7866, Scientific journal

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• Hidden thin-film phase of dinaphthothienothiophene revealed by high-resolution X-ray diffraction, Nobutaka Shioya; Kazuo Eda; Takafumi Shimoaka; Takeshi Hasegawa, 18 Aug. 2020, Applied Physics Express, 13, 9, Scientific journal

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• Mechanistic Study of Silane Alcoholysis Reactions with Self-Assembled Monolayer-Functionalized Gold Nanoparticle Catalysts, Katsuhiro Isozaki; Tomoya Taguchi; Kosuke Ishibashi; Takafumi Shimoaka; Wataru Kurashige; Yuichi Negishi; Takeshi Hasegawa; Masaharu Nakamura; Kazushi Miki, 09 Aug. 2020, Catalysts, 10, 8, 908, 908, Scientific journal

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• Infrared active surface modes found in thin films of perfluoroalkanes reveal the dipole–dipole interaction and surface morphology, Aki Fukumi; Takafumi Shimoaka; Nobutaka Shioya; Naoto Nagai; Takeshi Hasegawa, 28 Jul. 2020, The Journal of Chemical Physics, 153, 4, 044703, 044703, Scientific journal

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• Simultaneous Analysis of Molecular Orientation and Quantity Change of Constituents in a Thin Film Using pMAIRS, Nobutaka Shioya; Ryoi Fujiwara; Kazutaka Tomita; Takafumi Shimoaka; Takeshi Hasegawa, Mar. 2020, J. Phys. Chem. A, 124, 13, 2714, 2720, Scientific journal

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• Controlling the concentration gradient in sequentially deposited bilayer organic solar cells via rubbing and annealing, Mohd Zaidan Abdul Aziz; Koichi Higashimine; Nobutaka Shioya; Takafumi Shimoaka; Takeshi Hasegawa; Heisuke Sakai; Varun Vohra; Hideyuki Murata, 2020, RSC Advances, 10, 61, 37529, 37537, Scientific journal

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• pMAIRS Analysis on Chain-End Functionalization of Densely Grafted, Concentrated Polymer Brushes, Sakakibara, Keita; Nishiumi, Kosuke; Shimoaka, Takafumi; Hasegawa, Takeshi; Tsujii, Yoshinobu, Sep. 2019, MACROMOLECULES, 52, 17, 6673, 6682, Scientific journal

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• Second Generation of Multiple-Angle Incidence Resolution Spectrometry, Shioya, Nobutaka; Tomita, Kazutaka; Shimoaka, Takafumi; Hasegawa, Takeshi, Aug. 2019, JOURNAL OF PHYSICAL CHEMISTRY A, 123, 32, 7177, 7183, Scientific journal

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• Two-Dimensional Film Growth of Zinc Tetraphenylporphyrin with the Aid of Solvent Coordination, Tomita, Kazutaka; Shioya, Nobutaka; Shimoaka, Takafumi; Eda, Kazuo; Hasegawa, Takeshi, Aug. 2019, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 92, 8, 1335, 1340, Scientific journal

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• Probing the Molecular Structure and Orientation of the Leaf Surface of Brassica oleracea L. by Polarization Modulation-Infrared Reflection-Absorption Spectroscopy, Hama, Tetsuya; Seki, Kousuke; Ishibashi, Atsuki; Miyazaki, Ayane; Kouchi, Akira; Watanabe, Naoki; Shimoaka, Takafumi; Hasegawa, Takeshi, Jul. 2019, PLANT AND CELL PHYSIOLOGY, 60, 7, 1567, 1580, Scientific journal

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• Raman Optical Activity on a Solid Sample: Identification of Atropisomers of Perfluoroalkyl Chains Having a Helical Conformation and No Chiral Center, Shimoaka, Takafumi; Sonoyama, Masashi; Amii, Hideki; Takagi, Toshiyuki; Kanamori, Toshiyuki; Hasegawa, Takeshi, May 2019, JOURNAL OF PHYSICAL CHEMISTRY A, 123, 18, 3985, 3991, Scientific journal

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• Rational Method of Monitoring Molecular Transformations on Metal-Oxide Nanowire Surfaces, Wang, Chen; Hosomi, Takuro; Nagashima, Kazuki; Takahashi, Tsunaki; Zhang, Guozhu; Kanai, Masaki; Zeng, Hao; Mizukami, Wataru; Shioya, Nobutaka; Shimoaka, Takafumi; Tamaoka, Takehiro; Yoshida, Hideto; Takeda, Seiji; Yasui, Takao; Baba, Yoshinobu; Aoki, Yuriko; Terao, Jun; Hasegawa, Takeshi; Yanagida, Takeshi, Apr. 2019, NANO LETTERS, 19, 4, 2443, 2449, Scientific journal

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• Fluorous Property of a Short Perfluoroalkyl-Containing Compound Realized by Self-Assembled Monolayer Technique on a Silicon Substrate, Kise, Ryuma; Fukumi, Aki; Shioya, Nobutaka; Shimoaka, Takafumi; Sonoyama, Masashi; Amii, Hideki; Takagi, Toshiyuki; Kanamori, Toshiyuki; Eda, Kazuo; Hasegawa, Takeshi, Apr. 2019, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 92, 4, 785, 789, Scientific journal

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• Molecular Orientation Change in Naphthalene Diimide Thin Films Induced by Removal of Thermally Cleavable Substituents, Nakamura, Tomoya; Shioya, Nobutaka; Shimoaka, Takafumi; Nishikubo, Ryosuke; Hasegawa, Takeshi; Saeki, Akinori; Murata, Yasujiro; Murdey, Richard; Wakamiya, Atsushi, Mar. 2019, CHEMISTRY OF MATERIALS, 31, 5, 1729, 1737, Scientific journal

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• Analyzing peptide adsorption states via nanowire-employed infrared spectrometry, Hiroki Naito; Takao Yasui; Taisuke Shimada; Nobutaka Shioya; Takafumi Shimoaka; Masayoshi Tanaka; Kazuki Nagasima; Mina Okochi; Takeshi Yanagida; Takeshi Hasegawa; Yoshinobu Baba, 2019, 23rd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2019, 1206, 1207, International conference proceedings
• Alternative Face-on Thin Film Structure of Pentacene, Shioya, Nobutaka; Murdey, Richard; Nakao, Kazuto; Yoshida, Hiroyuki; Koganezawa, Tomoyuki; Eda, Kazuo; Shimoaka, Takafumi; Hasegawa, Takeshi, Jan. 2019, SCIENTIFIC REPORTS, 9, Scientific journal

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• Structure control of a zinc tetraphenylporphyrin thin film by vapor annealing using fluorine containing solvent, Tomita, Kazutaka; Shioya, Nobutaka; Kise, Ryuma; Shimoaka, Takafumi; Yoshida, Hiroyuki; Koganezawa, Tomoyuki; Eda, Kazuo; Hasegawa, Takeshi, Nov. 2018, THIN SOLID FILMS, 665, 85, 90, Scientific journal

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• Amyloid- fibrils assembled on ganglioside-enriched membranes contain both parallel -sheets and turns, Matsubara, Teruhiko; Yasumori, Hanaki; Ito, Koichiro; Shimoaka, Takafumi; Hasegawa, Takeshi; Sato, Toshinori, Sep. 2018, JOURNAL OF BIOLOGICAL CHEMISTRY, 293, 36, 14146, 14154, Scientific journal

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• Molecular Aggregation of Perfluoroalkyl Groups Can Win the Hydrogen Bonding between Amides, Shimoaka, Takafumi; Ukai, Hironori; Kurishima, Kana; Takei, Koutaro; Yamada, Norihiro; Hasegawa, Takeshi, Sep. 2018, JOURNAL OF PHYSICAL CHEMISTRY C, 122, 38, 22018, 22023, Scientific journal

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• Robust Surface Plasmon Resonance Chips for Repetitive and Accurate Analysis of Lignin-Peptide Interactions, Isozaki, Katsuhiro; Shimoaka, Takafumi; Oshiro, Satoshi; Yamaguchi, Asako; Pincella, Francesca; Ueno, Ryo; Hasegawa, Takeshi; Watanabe, Takashi; Takaya, Hikaru; Nakamura, Masaharu, Jul. 2018, ACS OMEGA, 3, 7, 7483, 7493, Scientific journal

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• Impact of Kinetically Restricted Structure on Thermal Conversion of Zinc Tetraphenylporphyrin Thin Films to the Triclinic and Monoclinic Phases, Shioya, Nobutaka; Hada, Miyako; Shimoaka, Takafumi; Murdey, Richard; Eda, Kazuo; Hasegawa, Takeshi, Mar. 2018, JOURNAL OF PHYSICAL CHEMISTRY C, 122, 8, 4540, 4545, Scientific journal

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• In Situ Nondestructive Analysis of Kalanchoe pinnata Leaf Surface Structure by Polarization-Modulation Infrared Reflection Absorption Spectroscopy, Tetsuya Hama; Akira Kouchi; Naoki Watanabe; Shinichi Enami; Takafumi Shimoaka; Takeshi Hasegawa, Dec. 2017, JOURNAL OF PHYSICAL CHEMISTRY B, 121, 49, 11124, 11131, Scientific journal

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• Study of Perfluoroalkyl Chain-Specific Band Shift in Infrared Spectra on the Chain Length, Takafumi Shimoaka; Masashi Sonoyama; Hideki Amii; Toshiyuki Takagi; Toshiyuki Kanamori; Takeshi Hasegawa, Nov. 2017, JOURNAL OF PHYSICAL CHEMISTRY A, 121, 44, 8425, 8431, Scientific journal

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• Controlling Mechanism of Molecular Orientation of Poly(3-alkylthiophene) in a Thin Film Revealed by Using pMAIRS, Nobutaka Shioya; Takafumi Shimoaka; Kazuo Eda; Takeshi Hasegawa, Jul. 2017, MACROMOLECULES, 50, 13, 5090, 5097, Scientific journal

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• Accurate Molecular Orientation Analysis Using Infrared p-Polarized Multiple-Angle Incidence Resolution Spectrometry (pMAIRS) Considering the Refractive Index of the Thin Film Sample, Nobutaka Shioya; Takafumi Shimoaka; Richard Murdey; Takeshi Hasegawa, Jun. 2017, APPLIED SPECTROSCOPY, 71, 6, 1242, 1248, Scientific journal

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• Optimal Experimental Condition of IR pMAIRS Calibrated by Using an Optically Isotropic Thin Film Exhibiting the Berreman Effect, Nobutaka Shioya; Shingo Norimoto; Naoki Izumi; Miyako Hada; Takafumi Shimoaka; Takeshi Hasegawa, May 2017, APPLIED SPECTROSCOPY, 71, 5, 901, 910, Scientific journal

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• Isolation of the simplest hydrated acid, Rui Zhang; Michihisa Murata; Atsushi Wakamiya; Takafumi Shimoaka; Takeshi Hasegawa; Yasujiro Murata, Apr. 2017, SCIENCE ADVANCES, 3, 4, e1602833, Scientific journal

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• Fringe and Noise Reductions of pMAIRS Spectra Using Principal Component Analysis, Nobutaka Shioya; Takafumi Shimoaka; Takeshi Hasegawa, Jan. 2017, ANALYTICAL SCIENCES, 33, 1, 117, 120, Scientific journal

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• Surface properties of a single perfluoroalkyl group on water surfaces studied by surface potential measurements, Takafumi Shimoaka; Yuki Tanaka; Nobutaka Shioya; Kohei Morita; Masashi Sonoyama; Hideki Amii; Toshiyuki Takagi; Toshiyuki Kanamori; Takeshi Hasegawa, Dec. 2016, JOURNAL OF COLLOID AND INTERFACE SCIENCE, 483, 353, 359, Scientific journal

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• Comprehensive Understanding of Structure-Controlling Factors of a Zinc Tetraphenylporphyrin Thin Film Using pMAIRS and GIXD Techniques, Miyako Hada; Nobutaka Shioya; Takafumi Shimoaka; Kazuo Eda; Masahiko Hada; Takeshi Hasegawa, Nov. 2016, CHEMISTRY-A EUROPEAN JOURNAL, 22, 46, 16539, 16546, Scientific journal

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• Molecular structural analysis of hydrated ethylene glycol accounting for the antifreeze effect by using infrared attenuated total reflection spectroscopy, Takafumi Shimoaka; Takeshi Hasegawa, Nov. 2016, JOURNAL OF MOLECULAR LIQUIDS, 223, 621, 627, Scientific journal

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• Synthesis of a distinct water dimer inside fullerene C-70, Rui Zhang; Michihisa Murata; Tomoko Aharen; Atsushi Wakamiya; Takafumi Shimoaka; Takeshi Hasegawa; Yasujiro Murata, May 2016, NATURE CHEMISTRY, 8, 5, 435, 441, Scientific journal

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• Synthesis of a distinct water dimer inside fullerene C70, Rui Zhang; Michihisa Murata; Tomoko Aharen; Atsushi Wakamiya; Takafumi Shimoaka; Takeshi Hasegawa; Yasujiro Murata, 01 May 2016, Nature Chemistry, 8, 5, 435, 441, Scientific journal

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• Characterization of Adsorbed Molecular Water on the Surface of a Stretched Polytetrafluoroethylene Tape Analyzed by H-1 NMR, Chihiro Wakai; Takafumi Shimoaka; Takeshi Hasegawa, Mar. 2016, JOURNAL OF PHYSICAL CHEMISTRY B, 120, 9, 2538, 2543, Scientific journal

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• In Situ Observation of a Self-Assembled Monolayer Formation of Octadecyltrimethoxysilane on a Silicon Oxide Surface Using a High Speed Atomic Force Microscope, Junji Iwasa; Kazuhisa Kumazawa; Kazumasa Aoyama; Hiroshi Suzuki; Shingo Norimoto; Takafumi Shimoaka; Takeshi Hasegawa, Feb. 2016, JOURNAL OF PHYSICAL CHEMISTRY C, 120, 5, 2807, 2813, Scientific journal

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• H-1 NMR Analysis of Water Freezing in Nanospace Involved in a Nafion Membrane, Chihiro Wakai; Takafumi Shimoaka; Takeshi Hasegawa, Jun. 2015, JOURNAL OF PHYSICAL CHEMISTRY B, 119, 25, 8048, 8053, Scientific journal

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• An Origin of Complicated Infrared Spectra of Perfluoroalkyl Compounds Involving a Normal Alkyl Group, Takeshi Hasegawa; Takafumi Shimoaka; Yuki Tanaka; Nobutaka Shioya; Kohei Morita; Masashi Sonoyama; Hideki Amii; Toshiyuki Takagi; Toshiyuki Kanamori, Jun. 2015, CHEMISTRY LETTERS, 44, 6, 834, 836, Scientific journal

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• Nafion 膜中に存在する束縛水の発見と水和構造の解明, 下赤卓史; 長谷川健, May 2015, 57, 1, 1, 7
• A new schematic for poly(3-alkylthiophene) in an amorphous film studied using a novel structural index in infrared spectroscopy, N. Shioya; T. Shimoaka; K. Eda; T. Hasegawa, 2015, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17, 20, 13472, 13479, Scientific journal

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• Hydration structure of strongly bound water on the sulfonic acid group in a Nafion membrane studied by infrared spectroscopy and quantum chemical calculation, T. Shimoaka; C. Wakai; T. Sakabe; S. Yamazaki; T. Hasegawa, 2015, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17, 14, 8843, 8849, Scientific journal

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• Stratified Dipole-Arrays Model Accounting for Bulk Properties Specific to Perfluoroalkyl Compounds, Takeshi Hasegawa; Takafumi Shimoaka; Nobutaka Shioya; Kohei Morita; Masashi Sonoyama; Toshiyuki Takagi; Toshiyuki Kanamori, Oct. 2014, CHEMPLUSCHEM, 79, 10, 1421, 1425, Scientific journal

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• Analysis of Molecular Orientation and Conformation of Poly(3-hexylthiophene) Thin Films on Silicon by Infrared p-Polarized Multiple-angle Incidence Resolution Spectrometry, Nobutaka Shioya; Takafumi Shimoaka; Takeshi Hasegawa, Aug. 2014, CHEMISTRY LETTERS, 43, 8, 1198, 1200, Scientific journal

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• Transient Reciprocating Motion of a Self-Propelled Object Controlled by a Molecular Layer of a N-Stearoyl-p-nitroaniline: Dependence on the Temperature of an Aqueous Phase, Satoshi Nakata; Tomoaki Ueda; Tatsuya Miyaji; Yui Matsuda; Yukiteru Katsumoto; Hiroyuki Kitahata; Takafumi Shimoaka; Takeshi Hasegawa, Jul. 2014, JOURNAL OF PHYSICAL CHEMISTRY C, 118, 27, 14888, 14893, Scientific journal

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• Surface Selection Rule of Infrared Diffuse Reflection Spectrometry for Analysis of Molecular Adsorbates on a Rough Surface of a Nonabsorbing Medium, Seiya Morimine; Shingo Norimoto; Takafumi Shimoaka; Takeshi Hasegawa, May 2014, ANALYTICAL CHEMISTRY, 86, 9, 4202, 4208, Scientific journal

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• Infrared spectroscopic study of stereo-controlled poly(N-isopropylacrylamide) with an extended chain conformation induced by adsorption on a gold surface, Takafumi Shimoaka; Kazuaki Rikiyama; Yukiteru Katsumoto; Takeshi Hasegawa, Nov. 2013, ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 405, 29, 9411, 9418, Scientific journal

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• Analysis of the Surface Coverage of a Self-Assembled Monolayer of Octadecyl Silane on a Si(100) Surface by Infrared External-Reflection Spectroscopy, Shingo Norimoto; Seiya Morimine; Takafumi Shimoaka; Takeshi Hasegawa, Oct. 2013, ANALYTICAL SCIENCES, 29, 10, 979, 984, Scientific journal

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• Analysis of the Hydration Process and Rotational Dynamics of Water in a Nafion Membrane Studied by H-1 NMR Spectroscopy, Chihiro Wakai; Takafumi Shimoaka; Takeshi Hasegawa, Aug. 2013, ANALYTICAL CHEMISTRY, 85, 15, 7581, 7587, Scientific journal

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• Correlation between the local OH stretching vibration wavenumber and the hydrogen bonding pattern of water in a condensed phase: Quantum chemical approach to analyze the broad OH band, Takafumi Shimoaka; Takeshi Hasegawa; Keiichi Ohno; Yukiteru Katsumoto, Dec. 2012, JOURNAL OF MOLECULAR STRUCTURE, 1029, 209, 216, Scientific journal

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• Dynamic Rearrangement of Stearic Acid Molecules Adsorbed on a Gold Surface Induced by Ambient Water Molecules Studied by Infrared Spectroscopy, Takafumi Shimoaka; Yuki Itoh; Takeshi Hasegawa, Aug. 2012, JOURNAL OF PHYSICAL CHEMISTRY C, 116, 32, 17142, 17148, Scientific journal

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• Blue Shift of the Isolated CD Stretching Band of CH2DOH in Water Induced by Changes in the Hydrogen-Bonding Pattern, Takafumi Shimoaka; Yukiteru Katsumoto, Nov. 2010, JOURNAL OF PHYSICAL CHEMISTRY A, 114, 44, 11971, 11976, Scientific journal

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• Relationship between the broad OH stretching band of methanol and hydrogen-bonding patterns in the liquid phase, Keiichi Ohno; Takafumi Shimoaka; Nobuyuki Akai; Yukiteru Katsumoto, Aug. 2008, JOURNAL OF PHYSICAL CHEMISTRY A, 112, 32, 7342, 7348, Scientific journal

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MISC

• Molecular Orientation Analysis in a Thin Film of a π-Gelator Forming a Unique Aggregate at Air-Water Interface, 山口悠太; 下赤卓史; 塩谷暢貴; AJAYAGHOSH Ayyappanpillai; 森泰蔵; 森泰蔵; 有賀克彦; 有賀克彦; 長谷川健, 2021, 日本化学会春季年会講演予稿集(Web), 101st
• ケモメトリックスが決着をつけたBTBの色と分子構造の関係, 下赤卓史, 2021, 1, 30
• In-Situ Molecular Orientation Analysis of a π-Gelator at Air-Water Interface by Using Infrared Spectroscopy, 山口悠太; 下赤卓史; 塩谷暢貴; AJAYAGHOSH Ayyappanpillai; 森泰蔵; 有賀克彦; 有賀克彦; 長谷川健, 2020, 日本化学会春季年会講演予稿集(CD-ROM), 100th
• Molecular Orientation Analysis in a Thin Film of a π-Gelator by Using Infrared Spectroscopy, 山口悠太; 下赤卓史; 塩谷暢貴; AJAYAGHOSH Ayyappanpillai; 森泰蔵; 森泰蔵; 有賀克彦; 有賀克彦; 長谷川健, 2020, 日本分光学会年次講演会(CD-ROM), 2020
• 振動分光法により読み解く有機フッ素化合物の分子集合構造, 下赤卓史, Oct. 2019, 68, 6, 189, 198, Introduction scientific journal
• Nafion 膜中に存在する“束縛水”の発見と吸着構造解析, 下赤卓史, 2016, 1, 3
• 振動分光法で見る溶液, 下赤卓史; 長谷川 健, 2016, 29, 2, 79, 84
• Vibrational Spectroscopic Study of Solution and Surface Chemistry, 下赤 卓史, 2015, 2015, 24, 26
• Vibrational Spectroscopic Study of Solution and Surface Chemistry, 下赤 卓史, 2014, 2014, 22, 23
• 空気中の水分が誘起する金表面に弱く吸着した分子種の赤外分光法による配向ダイナミクス解析, 下赤卓史; 伊藤雄樹; 長谷川健, Dec. 2012, 21, 3, 9

Books etc

• ラマン分光スペクトルデータ解析事例集, Contributor, Feb. 2022, 405p, ISBN: 9784861048722

Presentations

• 顕微ラマン分光法による有機フッ素材料の簡便な配向解析, 下赤 卓史, サーモフィッシャーサイエンティフィック FT-IR・ラマン バーチャル・ユーザーズフォーラム 2022（オンライン）, 08 Jul. 2022
• 最小二乗法によるデータ解析, 下赤 卓史, ぶんせき講習会（基礎編その1）（オンライン）, 13 May 2022
• 最小二乗法によるデータ解析, 下赤 卓史, ぶんせき講習会（基礎編その1）（オンライン）, 14 May 2021
• 振動分光法で読み解くパーフルオロアルキル化合物の分子集合構造, 下赤 卓史, 第2回群馬大学 F-マテリアルプロジェクト研究会（オンライン）, 30 Mar. 2021
• プロトン伝導膜中の吸着水及び有機フッ素鎖の役割に関する振動分光学的研究, 下赤 卓史, 日本分析化学会第68年会（千葉）, 12 Sep. 2019
• 有機フッ素化合物の分子集合構造を読み解く振動分光法の開拓, 下赤 卓史, 日本分光学会年次講演会（宇治）, May 2019
• 固体試料のROA解析：パーフルオロアルキル化合物のアトロプ異性の識別をめざして, 下赤 卓史, 日本分光学会先端レーザー分光部会若手シンポジウム（和光）, Jan. 2019
• 赤外分光法で読み解く機能性有機薄膜の分子配向, 下赤 卓史, 膜工学サロン（神戸）, Sep. 2018
• Quantitative Molecular Orientation Analysis in Organic Semiconductor Thin films Having a Rough Surface by pMAIRS, T. Shimoaka; N. Shioya; M. Hada; T. Hasegawa, SciX2017 (Reno, USA), Oct. 2017
• プロトン伝導性高分子に含まれる水の新しい描像, 下赤 卓史, ソフトマターを中心とした材料科学の基礎と応用（京都）, Mar. 2017
• 「分光スペクトルを読み解く」，「ケモメトリックスの基礎と応用」, 下赤 卓史, 日本分光学会スペクトル解析部会第１回シンポジウム（寝屋川）, Jan. 2017
• 多変量解析を利用した溶液解析, 下赤 卓史, 日本分光学会・第52回夏期セミナー（幕張）, Sep. 2016
• 振動分光法で見る溶液―不凍液の化学構造解析―, 下赤 卓史, キンカ京都化学者クラブ 第305回例会（京都）, Mar. 2016
• 量子化学計算の基礎と応用, 下赤 卓史, 分光セミナー（東京）, Nov. 2015
• ケモメトリックスのスペクトル解析への応用①赤外分光法, 下赤 卓史, ぶんせき講習会（発展編）（宇治）, Dec. 2014

Industrial Property Rights

• Patent right, 特願2016-159790, 17 Aug. 2016, 特許第6061052号, 22 Dec. 2016

Awards

• Sep. 2019
• May 2019
• Jun. 2016

Research Projects

• Molecular Interaction Analysis for Understanding Perfluoroalkyl Compound-Specific Properties, Shimoaka Takafumi, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Kyoto University, 01 Apr. 2017, 31 Mar. 2021, In this project, we studied the intermolecular interactions between perfluoroalkyl (Rf) compounds and heterogeneous molecules. As a representative result, we found a characteristic property of liquid perfluoroalkanes on the water surface: those remain on the water surface for a long time. This result indicates that perfluoroalkane molecules have a good affinity at the air-water interface, although Rf compounds are known to have a low affinity to water in general. This property does not appear in non-fluorinated organic solvents. As a result, the specific character of perfluoroalkanes on the water surface is surely attributed to the molecular interactive force derived from the large dipole., 17K14502

  対象リソースIRI
• Development of Analytical Techniques for Studying the Structure and Property of a Polymer Influenced by Minute Water Molecules Involved in a Polymer Thin Film, Shimoaka Takafumi; Hasegawa Takeshi; Wakai Chihiro; Katsumoto Yukiteru, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Kyoto University, 01 Apr. 2014, 31 Mar. 2018, In the research project, water molecules involved in a polymer thin film were investigated. A notable research result is about Nafion, which is used as a representative proton exchange membrane. Thus far, only two kinds of water about a sulfonic acid (SA) group have been known, i.e., the hydration water and exterior bulky water. To understand the hydration state of water on the SA group, 1H NMR spectra were analyzed, and a new third water species was found, which was also found to be significantly restricted in motion. This motion-restricted water was further studied by the IR spectral ‘variation’ in detail with an aid of quantum calculation by changing the number of hydration water molecules. As a result, the newly found “third water” was revealed to have a H-bonded complex with a unique ring-shape on two sites of the SA group, which explains the motion restriction., 26810075

  対象リソースIRI
• Development of a novel spectroscopic technique for revealing the molecular orientation in a thin film deposited on particles or a rough surface, Hasegawa Takeshi; SHIMOAKA Takafumi, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Exploratory Research, Kyoto University, 01 Apr. 2014, 31 Mar. 2017, Surface selection rule (SSR) for discussing the molecular orientation in a thin film adsorbed on a rough surface is figured out by analyzing a surface monolayer by defining the angle of incidence and polarizations. By introducing crossed-Nicol polarizers in the incident and detection paths, the specular reflection and diffuse reflection components are readily separated. To fully understand the spectra of the SAM, a new idea is proposed that the incidental light can be excluded from the discussion when the angle of incidence is small, which is named the pseudo-transmission (pd-Tr) model. Through the experiments of all the combinations of polarizations and angles of incidence, the pd-Tr model and the light suppression are found to be an important base to fully understand the SSR of molecular adsorbates on a rough surface of a non-absorbing medium., 26620118

  対象リソースIRI