| ○種別 (必須): | □ | 学術論文 (審査論文)
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| ○言語 (必須): | □ | 英語
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| ○審査 (推奨): | □ | Peer Review
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| ○カテゴリ (推奨): |
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| ○学究種別 (推奨): |
| ○組織 (推奨): | 1. | 徳島大学.大学院社会産業理工学研究部 (2017年4月1日〜)
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| ○著者 (必須): | 1. | (英) Nakao Toshiki (日) 中尾 俊樹 (読)
| ○役割 (任意): | □ | (英) (日) 記述，実験，解析，考察
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| ○貢献度 (任意): |
| ○学籍番号 (推奨): | □ | ****
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| 2. | 松木 均 ([徳島大学.大学院社会産業理工学研究部.生物資源産業学域.応用生命系.応用生物資源学分野]/[徳島大学.生物資源産業学部.生物資源産業学科.応用生命コース])
| ○役割 (任意): | □ | (英) (日) 考察
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| 3. | (英) Kato Minoru (日) 加藤 稔 (読)
| ○役割 (任意): | □ | (英) (日) 記述，考察
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| ○題名 (必須): | □ | (英) FTIR Study of Temperature- and Pressure-Induced Phase Transitions and Intermolecular Interaction Changes in DMPC Bilayers in H2O and D2O (日)
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| ○要約 (任意): | □ | (英) The thermodynamic and microscopic characteristics of membrane states accompanying temperature-induced phase transitions in phospholipid bilayer membranes forming liposomes have been well elucidated in previous studies. However, microscopic insights into membrane states during pressure-induced phase transitions particularly changes in intermolecular interactions between phospholipid molecules remain limited. In this study, we analyzed such interactions in 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) bilayer membranes using temperature-variable and pressure-variable infrared (IR) spectroscopy in both H2O and D2O environments. We focused on symmetric and antisymmetric stretching modes of methylene (νs(CH2), νas(CH2)) and methyl groups (νs(CH3), νas(CH3)), which effectively reflect molecular interactions. Frequency shifts in these vibrational modes correlated well with membrane curvature and solvent-induced changes in gel phase packing. Temperature and pressure derivatives ∂ν/∂P provided insight into bilayer stability across phases. In particular, ∂ν/∂P for νs(CH2) was about half as large in the interdigitated gel (LβI) phase as in the lamellar gel (Lβ') phase, suggesting reduced repulsive interactions between methylene chains in the LβI phase. (日)
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| ○キーワード (推奨): | 1. | (英) Phospholipid bilayer (日) (読)
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| 2. | 赤外分光法 (infrared spectroscopy)
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| 3. | 相転移 (phase transition)
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| ○発行所 (推奨): | □ | 社団法人 日本化学会
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| ○誌名 (必須): | □ | Bulletin of the Chemical Society of Japan ([社団法人 日本化学会])
(pISSN: 0009-2673, eISSN: 1348-0634)
| ○ISSN (任意): | □ | 0009-2673
ISSN: 0009-2673
(pISSN: 0009-2673, eISSN: 1348-0634) Title: Bulletin of the Chemical Society of JapanTitle(ISO): Bull Chem Soc JpnPublisher: Oxford University Press (NLM Catalog)
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| ○巻 (必須): | □ | 98
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| ○号 (必須): | □ | 12
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| ○頁 (必須): | □ | uoaf105 uoaf105
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| ○都市 (任意): |
| ○年月日 (必須): | □ | 西暦 2025年 12月 初日 (令和 7年 12月 初日)
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| ○URL (任意): |
| ○DOI (任意): | □ | 10.1093/bulcsj/uoaf105 (→Scopusで検索)
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| ○Scopus (任意): | 1. | 2-s2.0-105023825649
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| ○備考 (任意): | 1. | (英) Article.Affiliation: Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima 770-8513, Japan. (日)
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| 2. | (英) Article.PublicationTypeList.PublicationType: Journal Article (日)
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