2024/12/27 更新

写真b

ウエノ ナミ
上野 那美
UENO Nami
*大学が定期的に情報更新している項目(その他は、researchmapの登録情報を転載)
所属*
理学部 化学科
職名*
助教
研究キーワード
  • 電子状態

  • 多変量解析

  • 高分子

  • 分光分析

  • 学内職務経歴*
    • 2023年9月 - 現在 
      理学部   化学科   助教
     

    研究分野

    • 自然科学一般 / 数理物理、物性基礎

    論文

    • Improved stability of aluminum surface plasmon resonance sensor by protective gold layer 査読有り

      Ichiro Tanabe, Kenya Tanaka, Taisei Hikida, Takayoshi Fujita, Nami Ueno

      Sensors and Actuators A: Physical375   115528 - 115528   2024年9月

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      掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

      DOI: 10.1016/j.sna.2024.115528

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    • Visualization of Changes in Crystallinity and Intermolecular Hydrogen Bonding of Poly(ϵ-caprolactone) during Marine Degradation Process by High- and Low-Frequency Three-Dimensional Raman Mapping 査読有り

      Tomoaki Segawa, Kohei Ito, Masahiro Hatayama, Yota Maruyama, Jiacheng Gao, Nami Ueno, Harumi Sato

      ACS Applied Polymer Materials6 ( 11 ) 6408 - 6415   2024年6月14日

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      掲載種別:研究論文(学術雑誌)  

      The samples investigated were prepared by seeking poly(ϵ-caprolactone) (PCL) films in seawater for the study of marine degradation processes. Raman mapping measurements in the low-frequency region and the C═O stretching region were used for investigating the strength of the CH···O═C hydrogen bonding and the changes in the crystallinity of PCL, respectively, in its marine degradation process. During the marine degradation of the PCL film, the amorphous parts of the film decomposed and flow away in the seawater. A band at around 60 cm-1 reflecting intermolecular CH···O═C hydrogen bonds showed a weakening of hydrogen bonds in the crystal structure of PCL. Three-dimensional (3D) Raman mapping developed by the C═O stretching region indicated that the marine degradation started from the surface of the annealed PCL film. However, 3D Raman mapping measurements in the low-frequency region showed no significant difference in the strength of the hydrogen bonding between a film surface and an inside after marine degradation of day 7. These findings suggest that the crystallinity changes mainly near the film surface, but changes in the strength of the hydrogen bonding occur both near the surface and inside of the PCL film.

      DOI: 10.1021/acsapm.4c00621

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    • Visualization of isothermal crystallization and phase separation in poly[(R)-3-hydroxybutyrate]/poly(L-lactic acid) by low-frequency Raman imaging 査読有り

      Nami Ueno, Harumi Sato

      Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy312   124052 - 124052   2024年5月

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      担当区分:筆頭著者   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

      DOI: 10.1016/j.saa.2024.124052

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    • Room-temperature quantum coherence of entangled multiexcitons in a metal-organic framework. 査読有り 国際誌

      Akio Yamauchi, Kentaro Tanaka, Masaaki Fuki, Saiya Fujiwara, Nobuo Kimizuka, Tomohiro Ryu, Masaki Saigo, Ken Onda, Ryota Kusumoto, Nami Ueno, Harumi Sato, Yasuhiro Kobori, Kiyoshi Miyata, Nobuhiro Yanai

      Science advances10 ( 1 ) eadi3147   2024年1月5日

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      記述言語:英語   掲載種別:研究論文(学術雑誌)  

      Singlet fission can generate an exchange-coupled quintet triplet pair state 5TT, which could lead to the realization of quantum computing and quantum sensing using entangled multiple qubits even at room temperature. However, the observation of the quantum coherence of 5TT has been limited to cryogenic temperatures, and the fundamental question is what kind of material design will enable its room-temperature quantum coherence. Here, we show that the quantum coherence of singlet fission-derived 5TT in a chromophore-integrated metal-organic framework can be over hundred nanoseconds at room temperature. The suppressed motion of the chromophores in ordered domains within the metal-organic framework leads to the enough fluctuation of the exchange interaction necessary for 5TT generation but, at the same time, does not cause severe 5TT decoherence. Furthermore, the phase and amplitude of quantum beating depend on the molecular motion, opening the way to room-temperature molecular quantum computing based on multiple quantum gate control.

      DOI: 10.1126/sciadv.adi3147

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    • Electronic interaction between dimethyl carbonate and Li<sup>+</sup> studied by attenuated total reflectance far-ultraviolet spectroscopy 査読有り

      Hitomi Sato, Nami Ueno, Ichiro Tanabe

      Chemical Communications60 ( 50 ) 6375 - 6378   2024年

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      掲載種別:研究論文(学術雑誌)   出版者・発行元:Royal Society of Chemistry (RSC)  

      Electronic interaction between an electrolyte solvent and lithium ions was revealed by far-ultraviolet spectroscopy and quantum chemical calculations.

      DOI: 10.1039/d4cc01775g

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    • Analyzing the Quality Parameters of Apples by Spectroscopy from Vis/NIR to NIR Region: A Comprehensive Review

      Justyna Grabska, Krzysztof Beć, Nami Ueno, Christian Huck

      Foods12 ( 10 ) 1946 - 1946   2023年5月10日

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      掲載種別:研究論文(学術雑誌)   出版者・発行元:MDPI AG  

      Spectroscopic methods deliver a valuable non-destructive analytical tool that provides simultaneous qualitative and quantitative characterization of various samples. Apples belong to the world’s most consumed crops and with the current challenges of climate change and human impacts on the environment, maintaining high-quality apple production has become critical. This review comprehensively analyzes the application of spectroscopy in near-infrared (NIR) and visible (Vis) regions, which not only show particular potential in evaluating the quality parameters of apples but also in optimizing their production and supply routines. This includes the assessment of the external and internal characteristics such as color, size, shape, surface defects, soluble solids content (SSC), total titratable acidity (TA), firmness, starch pattern index (SPI), total dry matter concentration (DM), and nutritional value. The review also summarizes various techniques and approaches used in Vis/NIR studies of apples, such as authenticity, origin, identification, adulteration, and quality control. Optical sensors and associated methods offer a wide suite of solutions readily addressing the main needs of the industry in practical routines as well, e.g., efficient sorting and grading of apples based on sweetness and other quality parameters, facilitating quality control throughout the production and supply chain. This review also evaluates ongoing development trends in the application of handheld and portable instruments operating in the Vis/NIR and NIR spectral regions for apple quality control. The use of these technologies can enhance apple crop quality, maintain competitiveness, and meet the demands of consumers, making them a crucial topic in the apple industry. The focal point of this review is placed on the literature published in the last five years, with the exceptions of seminal works that have played a critical role in shaping the field or representative studies that highlight the progress made in specific areas.

      DOI: 10.3390/foods12101946

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    • Temperature‐dependent structural variations of water and supercooled water and spectral analysis of Raman spectra of water in the OH‐stretching band region and low‐frequency region studied by two‐dimensional correlation Raman spectroscopy 査読有り

      Hiroto Asano, Nami Ueno, Yukihiro Ozaki, Harumi Sato

      Journal of Raman Spectroscopy53 ( 10 ) 1669 - 1678   2022年9月28日

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      担当区分:筆頭著者   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

      Abstract

      Raman spectra of water and supercooled water were measured in the temperature range of −6 to 18°C with every 2°C step. The obtained spectra were analyzed for the 3750–2850 and 400–100 cm<sup>−1</sup> regions by two‐dimensional correlation (2D‐COS) Raman spectroscopy. As previously reported, there are three bands at around 3620, 3420, and 3200 cm<sup>−1</sup> in the OH‐stretching region. These bands were assigned to the OH‐stretching modes of dangling (Dang) bonds of water, destructured, and structured water species, respectively. A pair of clear peaks appear in asynchronous 2D‐COS maps in the 3750–2850 cm<sup>−1</sup> region of Raman spectra of water developed using the spectra measured in the temperature ranges of −6 to 2°C, 0 to 8°C, and 8 to 18°C, and they are similar to each other, suggesting nonlinear (convex) temperature‐dependent increase and decrease of the two kinds of water species. A power spectrum calculated along the diagonal line in the synchronous spectrum in the −6 to 18°C range has a peak at 3171 cm<sup>−1</sup> with a broad shoulder at around 3400 cm<sup>−1</sup>. These peaks at 3171 and 3400 cm<sup>−1</sup> may be assigned to the collective mode and its local mode of structured water, respectively. In the 400–100 cm<sup>−1</sup> region, there is a broad feature centered at 185 cm<sup>−1</sup> assigned to the intermolecular stretching mode of water molecule. Close inspection of the low‐frequency region by the baseline corrected spectra and the second derivative spectra shows that the broad feature consists of a major band at around 185 cm<sup>−1</sup> and a weak shoulder at around 150 cm<sup>−1</sup>. We have assigned these two peaks at 185 and 150 cm<sup>−1</sup> to the structured and destructured water, respectively, based on the results of 2D‐COS and the comparison with the results of multivariate curve resolution‐alternative least squares reported by Hamaguchi et al. A hetero 2D correlation synchronous map between the 3750–3000 and 400–100 cm<sup>−1</sup> regions reveals that there is a cross peak between the structured water band at around 3200 cm<sup>−1</sup> and the 185 cm<sup>−1</sup> band, confirming that the 185 cm<sup>−1</sup> band comes from the structured water.

      DOI: 10.1002/jrs.6444

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      その他リンク: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jrs.6444

    • Experimental verification of increased electronic excitation energy of water in hydrate-melt water by attenuated total reflection-far-ultraviolet spectroscopy 査読有り

      Nami Ueno, Masato Takegoshi, Anna Zaitceva, Yukihiro Ozaki, Yusuke Morisawa

      The Journal of Chemical Physics156 ( 7 ) 074705   2022年2月21日

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      担当区分:筆頭著者   出版者・発行元:AIP Publishing  

      DOI: 10.1063/5.0071893

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      その他リンク: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K05013/

    • Far Ultraviolet Spectroscopy for Polymers

      Yusuke Morisawa, Nami Ueno

      Spectroscopic Techniques for Polymer Characterization   165 - 182   2021年10月22日

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      出版者・発行元:Wiley  

      DOI: 10.1002/9783527830312.ch6

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    • Determining the Coordination Number of Li⁺ and Glyme or Poly(ethylene glycol) in Solution Using Attenuated Total Reflectance-Far Ultraviolet Spectroscopy 査読有り

        36 ( 1 ) 91 - 93   2020年1月10日

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      担当区分:筆頭著者   記述言語:英語   出版者・発行元:社団法人 日本分析化学会  

      DOI: 10.2116/analsci.19c011

      DOI: 10.1039/d0cp03865b_references_DOI_Fow4PRZmf8rygqweelJLkFZIpO6

      PubMed

      CiNii Article

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      その他リンク: https://link.springer.com/article/10.2116/analsci.19C011/fulltext.html

    • Changes in the Electronic Transitions of Polyethylene Glycol upon the Formation of a Coordinate Bond with Li+, Studied by ATR Far-Ultraviolet Spectroscopy 査読有り

      Nami Ueno, Tomonari Wakabayashi, Harumi Sato, Yusuke Morisawa

      The Journal of Physical Chemistry A123 ( 50 ) 10746 - 10756   2019年11月15日

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      担当区分:筆頭著者   出版者・発行元:American Chemical Society (ACS)  

      DOI: 10.1021/acs.jpca.9b09274

      DOI: 10.3175/molsci.14.a0114_references_DOI_JD6ZusM7OHffgvMiPGH0tTpY9ZB

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    • Bi2Ne: Weakly bound cluster of diatomic bismuth with neon

      Asuka Endo, Miho Hatanaka, Nami Ueno, Yusuke Morisawa, Tomonari Wakabayashi

      Low Temperature Physics45 ( 7 ) 689 - 696   2019年7月

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      出版者・発行元:AIP Publishing  

      DOI: 10.1063/1.5111288

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      その他リンク: https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-17H06445/

    • Bi2Ne: Weakly bound cluster of diatomic bismuth with neon 査読有り

      Endo, A., Hatanaka, M., Ueno, N., Morisawa, Y., Wakabayashi, T.

      Fizika Nizkikh Temperatur45 ( 7 ) 807 - 815   2019年1月

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      掲載種別:研究論文(学術雑誌)  

      © 2019 Institute for Low Temperature Physics and Engineering. All rights reserved. The A-X transition of diatomic bismuth, Bi2, was revisited by laser induced fluorescence in solid Ne at 3 K. Molecular constants, i.e., vibrational frequencies of 137 cm-1 and 174 cm-1, were reproduced for the upper and lower electronic states as reported by Bondybey et al. [Chem. Phys. Lett. 76, 30 (1980)]. Two-dimensional mapping of emission spectra confirmed satellite bands in higher and lower excitation/emission energies for each of the major bands in the vibrational progression of v′-v″ (v′ = 0.5, v″ = 5-12). Based on the molecular orbital cal-culations, presence of clusters, Bi2Nen (n = 1-6), is proposed for possible carriers of the observed satellites. For the relatively large matrix shift of ∼ 67 cm-1 in solid Ne for the term energy of the A state, the diatomic bismuthis supposed to exist as a linearly coordinated cluster of Bi2Ne in the matrix.

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    • Elucidation of the electronic states in polyethylene glycol by attenuated Total reflectance spectroscopy in the far-ultraviolet region 査読有り

      Nami Ueno, Tomonari Wakabayashi, Yusuke Morisawa

      Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy197   170 - 175   2018年5月

    ▼全件表示

    講演・口頭発表等

    • Influence of solvation structure variations induced by organic solvent molecular structures and salts on the electronic states of lithium electrolytes. 招待有り

      SCIX 2024  2024年10月24日 

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      開催年月日: 2024年10月20日 - 2024年10月25日

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    • PVA Hydrogelにおけるゲル形成に伴う電子状態変化

      第73回高分子討論会  2024年9月25日 

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      開催年月日: 2024年9月25日 - 2024年9月27日

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    • 電子状態変化を用いた有機溶媒電解質の溶媒和構造解析

      分析化学会第73年会  2024年9月11日 

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      開催年月日: 2024年9月11日 - 2024年9月13日

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    • FUV領域の電子状態に対する溶媒・アニオン依存性を ベースとしたリチウム塩電解質の溶媒和構造解析

      日本分光学会年次講演会  2024年6月19日 

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      開催年月日: 2024年6月19日 - 2024年6月21日

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    • 近赤外分光を用いたバイオコークス形成過程におけるバイオマス試料の分析

      上野 那美, 森澤 勇介

      環境工学総合シンポジウム講演論文集  2020年  一般社団法人 日本機械学会

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      開催年月日: 2020年 - 2020年

      記述言語:日本語  

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    共同研究・競争的資金等の研究

    • 高分子水和ゲルにおける水和構造の変化に伴う電子状態変化の要因解明

      池谷科学技術振興財団  2024年度 単年度研究助成 

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      2024年4月 - 2025年3月

      担当区分:研究代表者  資金種別:競争的資金

      配分額:2000000円

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    • 高分子のゲル化に伴う相互作用変化と電子状態変化の要因解明

      日本私立学校振興・共済事業団  2024年度 女性研究者奨励金 

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      2024年4月 - 2025年3月

      担当区分:研究代表者  資金種別:競争的資金

      配分額:400000円

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    • SCIX2024での研究発表

      八洲環境技術振興財団  2024年度 国際会議等助成 

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      2024年10月 - 2024年10月

      資金種別:競争的資金

      配分額:200000円

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