| 1. |
Atsuomi Shundo, Mika Aoki, Pangpang Wang, Taiki Hoshino, Satoru Yamamoto, Sunao Yamada, Keiji Tanaka, "Effect of a Heterogeneous Network on the Fracture Behavior of Epoxy Resins", Macromolecules, Vol. 56, No. 11, pp.3884–3890 (2023)., 2023.05. |
| 2. |
Satoru Yamamoto, Ryoya Ida, Mika Aoki, Riichi Kuwahara, Atsuomi Shundo, Keiji Tanaka, "Formation Mechanism of a Heterogeneous Network in Epoxy Resins", Macromolecules, Vol. 56, No. 11, pp.3913–3921 (2023)., 2023.05. |
| 3. |
Hung K. Nguyen, Atsuomi Shundo, Xiaobin Liang, Satoru Yamamoto, Keiji Tanaka, Ken Nakajima, "Unraveling Nanoscale Elastic and Adhesive Properties at the Nanoparticle/Epoxy Interface Using Bimodal Atomic Force Microscopy", ACS Appl. Mater. Interfaces Vol. 14, pp. 42713–42722 (2022)., 2022.09. |
| 4. |
Atsuomi Shundo, Satoru Yamamoto, Keiji Tanaka, "Network Formation and Physical Properties of Epoxy Resins for Future Practical Applications", JACS Au, Vol. 2, pp. 1522–1542 (2022)., 2022.06. |
| 5. |
Pangpang Wang, Ryusei Maeda, Mika Aoki, Tatsuya Kubozono, Daisuke Yoshihara, Atsuomi Shundo, Takaya Kobayashi, Satoru Yamamoto, Keiji Tanaka, Sunao Yamada, "In Situ Transmission Electron Microscopy Observation of the Deformation and Fracture Processes of an Epoxy/Silica Nanocomposite", Soft Matter, Vol. 18, pp. 1149-1153 (2022)., 2021.12. |
| 6. |
Atsuomi Shundo, Mika Aoki, Satoru Yamamoto, Keiji Tanaka, "Effect of Cross-linking Density on Horizontal and Vertical Shift Factors in Linear Viscoelastic Functions of Epoxy Resins", Macromolecules, Vol. 54, pp. 9618–9624 (2021)., 2021.10. |
| 7. |
Atsuomi Shundo, Mika Aoki, Satoru Yamamoto, Keiji Tanaka, "Cross-linking Effect on Segmental Dynamics of Well-defined Epoxy Resins", Macromolecules, Vol. 54, pp. 5950-5956 (2021)., 2021.06. |
| 8. |
Takuro Kogo, Atsuomi Shundo, Chi Wang, Keiji Tanaka, "Spatial Heterogeneity Accompanying Gel Formation of Poly(N-isopropylacrylamide) Aqueous Solution at a Temperature below Cloud Point", Macromolecules, Vol. 53, pp. 10964-10971 (2020)., 2020.11.  |
| 9. |
Mika Aoki,Atsuomi Shundo, Satoru Yamamoto, Keiji Tanaka, "Effect of Heterogeneous Network on Glass Transition Dynamics and Solvent Crack Behavior of Epoxy Resins", Soft Matter, Vol. 16, pp.7470-7478 (2020). [Back Cover], 2020.07. |
| 10. |
Yihao Wu, Atsuomi Shundo, Yuji Yasukochi, Keiji Tanaka , "Time-dependent Heterogeneity in Polyacrylic Pressure Sensitive Adhesive", European Polymer Journal, Vol. 134, pp.109812-1-5 (2020)., 2020.06. |
| 11. |
Atsuomi Shundo, Yuji Matsumoto, Hisato Hayashi, Nobutomo Tsuruzoe, Hisao Matsuno, Keiji Tanaka , "Mesoscopic Heterogeneity in Nanocellulose-Containing Cell Storage Medium", Journal of Material Chemistry B, Vol. 8, pp. 4570-4574 (2020). [Back Cover Image], 2020.04. |
| 12. |
Satoru Yamamoto, Riichi Kuwahara, Mika Aoki, Atsuomi Shundo, Keiji Tanaka , "Molecular Events for an Epoxy-Amine System at a Copper Interface", ACS Applied Polymer Material, Vol. 2, pp. 1474-1481 (2020)., 2020.02. |
| 13. |
Yuji Matsumoto, Atsuomi Shundo, Hisato Hayashi, Nobutomo Tsuruzoe, Keiji Tanaka, "Effect of the Heterogeneous Structure on Mechanical Properties for a Nanocellulose-Reinforced Polymer Composite", Macromolecules Vol. 52, pp. 8266-8274 (2019)., 2019.10. |
| 14. |
Mika Aoki, Atsuomi Shundo, Kenji Okamoto, Tatsuya Ganbe, Keji Tanaka, "Segregation of an Amine Component in a Model Epoxy Resin at a Copper Interface", Polymer Journal, Vol. 51, pp. 359~363 (2019). , 2019.03. |
| 15. |
Mika Aoki, Atsuomi Shundo, Riichi Kuwahara, Satoru Yamamoto, Keji Tanaka, "Mesoscopic Heterogeneity in the Curing Process of an Epoxy-Amine System", Macromolecules Vol. 52, pp. 2075~2082 (2019)., 2019.02. |
| 16. |
Yuji Matsumoto, Atsuomi Shundo, Masashi Ohno, Nobutomo Tsuruzoe, Masahiro Goto, Keiji Tanaka, "Mesoscopic Heterogeneity in Pore Size of Supramolecular Networks", Langmuir, Vol. 34, pp. 7503～7508 (2018)., 2018.06. |
| 17. |
Hidenobu Taneda, Atsuomi. Shundo, Hisao Matsuno, Keiji Tanaka, "Design of a Well-Defined Polyrotaxane Structure on a Glassy Polymer Surface", Langmuir, Vol. 34 pp. 709~714 (2018), 2018.01. |
| 18. |
Atsuomi Shundo, Takuya Yamamoto, Yasuyuki Tezuka, Keiji Tanaka, Load-induced frictional transition for well-defined cyclic self-Assembled monolayers, Toraibarojisuto/Journal of Japanese Society of Tribologists, 63, 4, 248-252, 2018.01, Self-Assembled monolayer (SAM) with amphiphilic linear molecules has been studied as a surface modifier. In general, the surface properties of a SAM are dependent on the chain end chemistry of the molecules. Thus, a SAM composed of alkane loops from cyclic alkanedisulfide on a gold substrate, in which both sulfurs arc bound to gold, may possess unique surface properties due to the chain folding as well as a lack of chain ends. We here focus on the frictional properties of the linear and cyclic SAMs. For the cyclic SAM, the load dependence of the frictional force became more striking beyond a threshold. Such a frictional transition was not observed for the corresponding linear SAM. The load-induced transition in the frictional response from the alkane loops could be related to the conformational change of the alkane loops, which collapsed along the direction normal to the SAM surface.. |
| 19. |
Yuji Matsumoto, Atsuomi Shundo, Masashi Ohno, Nobutomo Tsuruzoe, Masahiro Goto, Keiji Tanaka, "Evolution of Heterogeneity Accompanying Sol–gel Transitions in a Supramolecular Hydrogel", Soft Matter, Vol. 13, pp. 7433-7440 (2017), 2017.10. |
| 20. |
Atsuomi Shundo, Physical properties and heterogeneity in supramolecular fiber dispersion, Journal of Fiber Science and Technology, 10.2115/fiber.73.p-200, 73, 5, 2017.01. |
| 21. |
Atsuomi Shundo, Koichiro Hori, Yasuyuki Tezuka, Takuya Yamamoto, Keiji Tanaka, "Load-Induced Frictional Transition at Well-Defined Alkane Loop Surface", Langmuir, Vol. 33, pp. 2396~2401 (2017), 2016.12, 本論文では、環状アルカンジスルフィドの自己組織化単分子膜とその摩擦特性について報告した。. |
| 22. |
Kenji Okamoto, Tatsuya Ganbe, Nobuyuki Sekine, Mika Aoki, Manabu Inutsuka, Atsuomi Shundo, Daisuke Kawaguchi, Keiji Tanaka, Nanoscale characterization of epoxy interface on silica, 1st IEEE International Conference on Dielectrics, ICD 2016
Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016, 10.1109/ICD.2016.7547549, 1, 84-87, 2016.08, The objective of this study is to carry out nanoscale characterization of the epoxy resin interface on silica by determining the glass-transition temperature (Tg) and molecular conformation at the interface by means of a novel non-destructive method. The Tg was determined by fluorescence lifetime measurements using evanescent wave excitation. It was revealed that the Tg of epoxy resin at a distance of 30 nm from the interface was 10 K higher than that at a distance of 80 nm. The chemical composition and molecular conformation were analysed by X-ray photoelectron spectroscopy and sum-frequency generation (SFG) spectroscopy, respectively. The SFG data revealed that unreacted epoxy group remained at the interface. The Tg of epoxy resin increased in the regions near the interface, and the epoxy group remained unreacted at a distance of ca. 10 nm or less from the interface.. |
| 23. |
Atsuomi Shundo, Koichiro Hori, David P. Penaloza, Yuji Matsumoto, Yasushi Okumura, Hirotsugu Kikuchi , Kyung Eun Lee, Sang-Ouk Kim, Keiji Tanaka, "Hierarchical Spatial Heterogeneity in Liquid Crystals Composed of Graphene Oxides", Phys. Chem. Chem. Phys., Vol. 18, pp. 22399~22406 (2016), 2016.07, 本論文では、酸化グラフェンが形成するリオトロピック液晶の階層的な不均一性について報告した。. |
| 24. |
Atsuomi Shundo, "Dynamic Structure and Functionalization of Polymer Interfaces"
, Polym. J., Vol. 47, pp. 719~726 (2015)
, 2015.11, 本論文では、異種相と接した高分子界面の動的な構造解析、およびそれに基づく界面機能化について報告した。. |
| 25. |
Keigo Matsumoto, Atsuomi Shundo, Masahi Ohno, Kowichiro Saruhashi, Nobuhide Miyachi, Nobutomo Tsuruzoe, Keiji Tanaka, "Sol-gel Transition Accelerated by Co-assembly of Two Components in Supramolecular Hydrogels"
, Phys.Chem.Chem.Phys., Vol. 17, pp. 26724~26730
, 2015.10, 超分子ヒドロゲルの物性制御の手法として、二種類の低分子の自己組織化（co-assembly）が注目されている。二種類の低分子から形成されるヒドロゲルは、それぞれの分子から形成されるゲルとは異なる物性を示すことが知られている。本論文では、低分子が自己組織化して形成される繊維状会合体の疎水性ドメインに基づく階層構造の制御に基づきゾルーゲル転移の制御に成功した。. |
| 26. |
Keigo Matsumoto, Atsuomi Shundo, Masahi Ohno, Shun Fujita, Kowichiro Saruhashi, Nobuhide Miyachi, Katsuaki Miyaji, Keiji Tanaka, "Modulation of Physical Properties of Supramolecular Hydrogels Based on a Hydrophobic Core"
, Phys.Chem.Chem.Phys., Vol. 17, pp. 2192-2198
, 2015.01, 年、超分子ヒドロゲルの物性制御の手法として、二種類の低分子の自己組織化（co-assembly）が注目されている。二種類の低分子から形成されるヒドロゲルは、それぞれの分子から形成されるゲルとは異なる物性を示すことが知られている。また、それぞれの分子の組成を変えることによって、最終的に得られる超分子ヒドロゲルの物性を精密に制御することが可能である。本論文では、低分子が自己組織化して形成される繊維状会合体の疎水性ドメインに基づく階層構造の制御に着目し、ゲルの粘弾特性およびゾルーゲル転移の制御を検討した。. |
| 27. |
Hisao Matsuno, Toshiyuki Ohta, Atsuomi Shundo, Yasuo Fukunaga, Keiji Tanaka, "Simple Surface Treatment of Cell-culture Scaffolds by Ultrafine Bubble Water"
, Langmuir Vol. 30, pp. 15238-15243 , 2014.12, 粒径が数百nm以下の気泡を分散させた水をウルトラファインバブル (UFB) 水と呼ばれる。本研究では、UFB水処理を施すことで、細胞が増殖しやすい高分子表面が構築できることを見出した。. |
| 28. |
Atsuomi Shundo, Yuuki Hoshino, Takahiro Higuchi, Yuji Matsumoto, David P. Penaloza Jr., Keigo Matsumoto, Masahi Ohno, Katsuaki Miyaji, Masahiro Goto, Keiji Tanaka, "Facile Microcapsule Fabrication by Spray Deposition of a Supramolecular Hydrogel"
, RSC Advances Vol.4, pp.36097-36100
, 2014.08, 超分子ヒドロゲルは歪印加によってゾル状態となる。本研究では、その特性に着目し、スプレー基材への応用を検討した。その結果、超分子ヒドロゲルを基板にスプレーするだけで、マイクロカプセルが生成することを見出した。分光学的手法および顕微鏡観察によってその生成機構を議論した。. |
| 29. |
Jonathan P. Hill, Jan Labuta, Shinsuke Ishihara, Atsuomi Shundo, Katsuhiko Ariga, "Non–chiral Tetrapyrroles for NMR Determination of Enantiomeric Excess", Symmetry - Culture and Science, Vol. 25, pp. 063-066 (2014)., 2014.01. |
| 30. |
Jan Labuta, Shinsuke Ishihara, Tomas Sikorsky, Zdenek Futera, Atsuomi Shundo, Lenka Hanykova, Jaroslav V. Burda, Katsuhiko Ariga, Jonathan P. Hill, "NMR spectroscopic detection of chirality and enantiopurity in referenced systems without formation of diastereomers"
, Nature Communications, Vol. 4, pp. 2188-1-8 [Highlighted as a Hot Paper], 2013.07, キラルセンシングには、キラル化合物 (ホスト分子) の添加によるジアステレオマー誘導体化が必須と考えられてきた。本論文は、アキラルな化合物でもキラルセンシングが可能であることを世界で初めて実証したものである。研究結果は、NMRによるキラルセンシングの原理的なブレイクスルーとして位置づけられる。. |
| 31. |
Atsuomi Shundo, Koichiro Hori, David P. Penaloza Jr, Kazuki Yoshihiro, Annaka Masahiko, Keiji Tanaka, "Nonsolvents-induced Swelling of Poly(methyl methacrylate) Nanoparticles"
, Physical Chemistry Chemical Physics, Vol.15, pp.16574-16578, 2013.07. |
| 32. |
David P. Penaloza Jr., Atsuomi Shundo, Keigo Matsumoto, Masahi Ohno, Katsuaki Miyaji, Masahiro Goto, Keiji Tanaka, "Spatial Heterogeneity in the Sol-gel Transition of a Supramolecular System"
, Soft Matter., Vol.9, 5166-5172. [Cover Page], [Selected as a June's Hot Paper in SM Blog], 2013.06, 粒子追跡法は、プローブ粒子の熱運動に基づきソフトマテリアルの局所物性を評価できる手法である。本発表では、粒子追跡法を利用した超分子ヒドロゲルのゾル－ゲル転移過程における空間的な不均一性について報告した。さらに、（１）粒子のサイズと不均一性の相関、および（２）様々な空間スケールにおける構造についても併せて報告し、不均一性の起源を議論した。. |
| 33. |
Atsuomi Shundo, Sinsuke Ihihara, Jan Labuta, Yosuke Onuma, Hideki Sakai, Masahiko Abe, Katsuhiko Ariga, Jonathan P. Hill, "Colorimetric visualization of acid–base equilibria in non-polar solvent"
, Chemical Communications., Vol.49, pp.6870-6872 [Highlighted in Chemistry World], 2013.06, 本論文は、独自に設計・開発したカリックスピロール誘導体が、有機化合物の酸解離定数 (pKa) に対して様々に呈色し、酸塩基平衡を可視化する指示薬として有用であることを明らかにしたものである。. |
| 34. |
Atsuomi Shundo, Koichiro Hori, Takuya Ikeda, Nobuo Kimizuka, Keiji Tanaka, "Design of a Dynamic Polymer Interface for Chiral Discrimination"
, Journal of the American Chemical Society, Vol.135, pp.10282-10285, 2013.06, 一般に、光学異性体を分離・検出するためには、光学異性体を含む溶液・液体と接した高分子材料の界面において、キラル高分子が一方の対掌体と選択的に相互作用 (キラル識別) する必要がある。しかしながら、これまで界面における高分子の振る舞いに関する系統的な研究は少なく、材料設計の際にそれほど考慮されていないのが現状である。そこで本研究では、キラル液体界面におけるキラル高分子の凝集状態と不斉選択性の関係を明らかにすることを目的とした。. |
| 35. |
Taizo Mori, Keita Sakakibara, Hiroshi Endo, Misaho Akada, Ken Okamoto, Atsuomi Shundo, Michael V. Lee, Qingmin Ji,, Takuya Fujisawa, Kenichiro Oka, Mutsuyoshi Matsumoto, Hideki Sakai, Masahiko Abe, Jonathan P. Hill, Katsuhiko Ariga, "Langmuir Nanoarchitectonics: One-Touch Fabrication of Regular-Size Nanodisks at the Air-Water Interface"
, Langmuir, Vol.29 (24), pp 7239–7248, 2013.04. |
| 36. |
Atsuomi Shundo, David P. Penaloza, Keiji Tanaka, "Microscopic Heterogeneity in Viscoelastic Properties of Molecular Assembled Systems"
, Chin. J. Polym. Sci., Vol. 31, pp. 1-11, 2013.01. |
| 37. |
Atsuomi Shundo, Koichiro Hori, David P. Penaloza Jr., Keiji Tanaka, "Optical Tweezers with Fluorescence Detection for Temperature-dependent Microrheological Measurements"
, Review of Scientific Instruments, Vol.84(1), 014103-01410., 2013.01. |
| 38. |
Atsuomi Shundo, Yohei Okada, Fuyuki Ito, Keiji Tanaka, "Fluorescence Behavior of Dyes in Thin Films of Various Polymers"
, Macromolecules, Vol. 45, pp. 329-335, 2012.02. |
| 39. |
Taizo Mori, Keita Sakakibara, Hiroshi Endo, Misaho Akada, Ken Okamoto, Atsuomi Shundo, Michael V. Lee, Qingmin Ji, Takuya Fujisawa, Ken-ichiro Oka, Mutsuyoshi Matsumoto, Hideki Sakai, Masahiko Abe, Jonathan P. Hill, Katsuhiko Ariga, "One-Touch Nanofabrication of Regular-Sized Disks through Interfacial Dewetting and Weak Molecular Interaction"
, Chemistry Letters, Vol. 41, pp. 170-172, [Selected as Editor’s Choice], 2012.02. |
