『徳島大学 教育・研究者情報データベース (EDB)』---[学外] /
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種別 (必須): 学術論文 (審査論文) [継承]
言語 (必須): 英語 [継承]
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審査 (推奨):
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.工学部.生物工学科.生物機能工学講座 [継承]
著者 (必須): 1.金品 昌志
役割 (任意): (英)   (日) 実験,解析,考察,記述   [継承]
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2. (英) Kamaya Hiroshi (日) 釜谷 比羅志 (読) かまや ひろし
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3. (英) Ueda Issaku (日) 上田 一作 (読) うえだ いっさく
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題名 (必須): (英) Benzyl Alcohol Penetration into Micelles, Dielectric Constants of the Binding Site, Partition Coefficient and High - Pressure Squeeze - Out  (日)    [継承]
副題 (任意):
要約 (任意): (英) The absorbance maximum, lambda max, of a local anesthetic, benzyl alcohol, is shifted to longer wavelengths when solvent polarity is decreased. The shift was approximately a linear function of the dielectric constant of the solvent. This transition in electronic spectra according to the microenvironmental polarity is used to analyze benzyl alcohol binding to surfactant micelles. A facile method is devised to estimate the micelle/water partition coefficient from the dependence of lambda max of benzyl alcohol on surfactant concentrations. The effective dielectric constants of the sodium decyl sulfate, dodecyl sulfate and tetradecyl sulfate micelles were 29, 31 and 33, respectively. The partition coefficient of benzyl alcohol between the micelles and the aqueous phase was 417, 610 and 1089, respectively, in the mole fraction unit. The pressure dependence of the partition coefficient was estimated from the depression of the critical micelle concentration of sodium dodecyl sulfate by benzyl alcohol under high pressure up to 200 MPa. High pressure squeezed out benzyl alcohol molecules from the micelle until about 120 MPa, then started to squeeze in when the pressure was further increased. The volume change of benzyl alcohol by transfer from the aqueous to the micellar phase was calculated from the pressure dependence of the partition coefficient. The volume change, estimated from the thermodynamic argument, was 3.5 +/- 1.1 cm3.mol-1 at 298.15 K, which was in reasonable agreement with the partial molal volume change determined directly from the solution density measurements, 3.1 +/- 0.2 cm3.mol-1. Benzyl alcohol apparently solvates into the micelles close to surface without losing contact with the aqueous phase.  (日) 局所麻酔薬ベンジルアルコールの紫外吸収極大波長が溶媒の誘電率に依存してシフトすることを利用し,ミセルと結合したベンジルアルコールの微視的溶媒環境とミセルヘの分配係数を見積もる方法を提案した.アルキル硫酸塩ミセルにおける結合サイトの見かけの誘電率は29∼33であることから,ミセル表面近傍と結論した.分配係数は加圧により減少し,ミセルよりの絞り出し効果が認められた.   [継承]
キーワード (推奨): 1. (英) Benzyl Alcohol (日) (読) [継承]
2. (英) Benzyl Alcohols (日) (読) [継承]
3. (英) Benzyl Compounds (日) (読) [継承]
4. (英) Binding Sites (日) (読) [継承]
5. (英) Chemistry, Physical (日) (読) [継承]
6. (英) Colloids (日) (読) [継承]
7. (英) Electrochemistry (日) (読) [継承]
8. (英) Fatty Alcohols (日) (読) [継承]
9. (英) Micelles (日) (読) [継承]
10. (英) Physicochemical Phenomena (日) (読) [継承]
11. (英) Pressure (日) (読) [継承]
12. (英) Sodium Dodecyl Sulfate (日) (読) [継承]
13. (英) Sodium Tetradecyl Sulfate (日) (読) [継承]
14. (英) Solubility (日) (読) [継承]
15. (英) Solvents (日) (読) [継承]
16. (英) Spectrophotometry, Ultraviolet (日) (読) [継承]
発行所 (推奨): Elsevier Science [継承]
誌名 (必須): Biochimica et Biophysica Acta (BBA) - Biomembranes ([Elsevier Science])
(pISSN: 0005-2736)

ISSN (任意): 0005-2736
ISSN: 0005-2736 (pISSN: 0005-2736, eISSN: 1879-2642)
Title: Biochimica et biophysica acta. Biomembranes
Title(ISO): Biochim Biophys Acta Biomembr
Publisher: Elsevier BV
 (NLM Catalog  (Scopus  (CrossRef (Scopus information is found. [need login])
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(必須): 777 [継承]
(必須): 1 [継承]
(必須): 75 83 [継承]
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年月日 (必須): 西暦 1984年 10月 1日 (昭和 59年 10月 1日) [継承]
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DOI (任意): 10.1016/0005-2736(84)90498-X    (→Scopusで検索) [継承]
PMID (任意): 6487618    (→Scopusで検索) [継承]
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備考 (任意): 1.(英) Article.PublicationTypeList.PublicationType: Journal Article  (日)    [継承]
2.(英) Article.PublicationTypeList.PublicationType: Research Support, U.S. Gov't, Non-P.H.S.  (日)    [継承]
3.(英) Article.PublicationTypeList.PublicationType: Research Support, U.S. Gov't, P.H.S.  (日)    [継承]

標準的な表示

和文冊子 ● Shoji Kaneshina, Hiroshi Kamaya and Issaku Ueda : Benzyl Alcohol Penetration into Micelles, Dielectric Constants of the Binding Site, Partition Coefficient and High - Pressure Squeeze - Out, Biochimica et Biophysica Acta (BBA) - Biomembranes, Vol.777, No.1, 75-83, 1984.
欧文冊子 ● Shoji Kaneshina, Hiroshi Kamaya and Issaku Ueda : Benzyl Alcohol Penetration into Micelles, Dielectric Constants of the Binding Site, Partition Coefficient and High - Pressure Squeeze - Out, Biochimica et Biophysica Acta (BBA) - Biomembranes, Vol.777, No.1, 75-83, 1984.

関連情報

Number of session users = 6, LA = 0.82, Max(EID) = 372614, Max(EOID) = 996873.