| ○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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| ○招待 (推奨): |
| ○審査 (推奨): | □ | Peer Review
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| ○カテゴリ (推奨): |
| ○共著種別 (推奨): |
| ○学究種別 (推奨): |
| ○組織 (推奨): | 1. | 徳島大学.工学部.生物工学科.生物機能工学講座 (〜2023年3月31日)
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| ○著者 (必須): | 1. | 後藤 優樹 ([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) 実験，記述，解析，考察
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| 2. | (英) Ishida Shunsuke (日) (読)
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| ○学籍番号 (推奨): | □ | ****
| [ユーザ] |
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| 3. | (英) Ito Yuka (日) (読)
| ○役割 (任意): | □ | (英) (日) 実験，解析
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| ○学籍番号 (推奨): | □ | ****
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| 4. | 玉井 伸岳 ([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) 計画，考察，論文執筆の指導
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| 5. | 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])
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| 6. | 金品 昌志
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| ○題名 (必須): | □ | (英) Thermotropic and Barotropic Phase Transitions of Dialkyldimethylammonium Bromide Bilayer Membranes: Effect of Chain Length (日)
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| ○副題 (任意): |
| ○要約 (任意): | □ | (英) The bilayer phase transitions of dialkyldimethylammonium bromides (2C(n)Br; n = 12, 14, 16) were observed by differential scanning calorimetry and high-pressure light-transmittance measurements. Under atmospheric pressure, the 2C(12)Br bilayer membrane underwent the stable transition from the lamellar crystal (L(c)) phase to the liquid crystalline (L(α)) phase. The 2C(14)Br bilayer underwent the main transition from the metastable lamellar gel (L(β)) phase to the metastable L(α) phase in addition to the stable L(c)/L(α) transition. For the 2C(16)Br bilayer, moreover, three kinds of phase transitions were observed: the metastable main transition, the metastable transition from the metastable lamellar crystal (L(c(2))) phase to the metastable L(α) phase, and the stable lamellar crystal (L(c(1)))/L(α) transition. The temperatures of all the phase transitions elevated almost linearly with increasing pressure. The temperature (T)-pressure (p) phase diagrams of the 2C(12)Br and 2C(14)Br bilayers were simple, but that of the 2C(16)Br bilayer was complex; that is, the T-p curves for the metastable main transition and the L(c(2))/L(α) transition intersect at ca. 25 MPa, which means the inversion of the relative phase stability between the metastable phases of L(β) and L(c(2)) above and below the pressure. Moreover, the T-p curve of the L(c(2))/L(α) transition was separated into two curves under high pressure, and as a result, the pressure-induced L(c(2P)) phase appeared in between. Thermodynamic quantities for phase transitions of the 2C(n)Br bilayers increased with an increase in alkyl-chain length. The chain-length dependence of the phase-transition temperature for all kinds of transitions observed suggests that the stable L(c(1))/L(α) transition incorporates the metastable L(c(2))/L(α) transition in the bilayers of 2C(n)Br with shorter alkyl chains, and the main-transition of the 2C(12)Br bilayer would occur at a temperature below 0 °C. (日)
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| ○キーワード (推奨): | 1. | (英) Atmospheric Pressure (日) (読)
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| 2. | (英) Cell Membrane (日) (読)
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| 3. | (英) Light (日) (読)
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| 4. | (英) Lipid Bilayers (日) (読)
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| 5. | (英) Phase Transition (日) (読)
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| 6. | (英) Quaternary Ammonium Compounds (日) (読)
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| 7. | (英) Surface-Active Agents (日) (読)
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| 8. | (英) Temperature (日) (読)
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| 9. | (英) Thermodynamics (日) (読)
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| ○発行所 (推奨): | □ | アメリカ化学会
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| ○誌名 (必須): | □ | Langmuir ([アメリカ化学会])
(pISSN: 0743-7463, eISSN: 1520-5827)
| ○ISSN (任意): | □ | 1520-5827
ISSN: 0743-7463
(pISSN: 0743-7463, eISSN: 1520-5827) Title: Langmuir : the ACS journal of surfaces and colloidsTitle(ISO): LangmuirPublisher: American Chemical Society (NLM Catalog)
(Scopus)
(CrossRef)
(Scopus information is found. [need login]) | [継承] |
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| ○巻 (必須): | □ | 27
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| ○号 (必須): | □ | 10
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| ○頁 (必須): | □ | 5824 5831
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| ○都市 (任意): |
| ○年月日 (必須): | □ | 西暦 2011年 6月 初日 (平成 23年 6月 初日)
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| ○URL (任意): |
| ○DOI (任意): | □ | 10.1021/la200323h (→Scopusで検索)
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| ○PMID (任意): | □ | 21520909 (→Scopusで検索)
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| ○備考 (任意): | 1. | (英) Article.Affiliation: Department of Life System, Institute of Technology and Science, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan. (日)
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| 2. | (英) Article.PublicationTypeList.PublicationType: Journal Article (日)
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