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タイトル: Unique incorporation behavior of amino acid-type surfactant into phospholipid vesicle membrane
著者: Yasuhara, Kazuma
Ohta, Akio link image link image
Asakura, Yoshihiro
Kodama, Taishi
Asakuwa, Tsuyoshi
Miyagishi, Shigeyoshi
太田, 明雄
発行日: 2005年 6月
出版社(者): Springer Verlag
引用: Colloid and Polymer Science 283 (9), pp. 987-993
雑誌名: Colloid and Polymer Science
ISSN: 0303-402X
巻: 283
号: 9
開始ページ: 987
終了ページ: 993
キーワード: 5(6)-Carboxyfluorescein
Amino acid-type surfactant
Cooperative adsorption
Incorporation of surfactant
Phospholipid vesicle
抄録: The incorporation behavior of some anionic surfactants, including amino acid-type surfactants, on phospholipid vesicles was investigated. This was done by measuring the release of a vesicle-entrapped fluorescence probe and the scattered light intensities of vesicle particles in the surfactant solution as a function of surfactant concentration and time. Sodium dodecyl sulfate, sodium dodecanesulfonate, sodium dodecanoyl sarcosinate, and sodium dodecanoyl glutamate were employed in this study. All surfactants ruptured the phospholipid vesicle at around each critical micelle concentration by mixed micelle formation with phospholipid. While leakage of the fluorescence probe took place at a very low concentration in the sulfate- or sulfonate-type surfactant systems, it occurred at the concentration just below the CMC in the amino acid-type surfactant systems. Kinetic analysis of the release of the probe from the vesicles showed that the former surfactants adsorbed independently and homogeneously onto the phospholipid vesicles, while the latter surfactants were cooperatively incorporated.
URI: http://hdl.handle.net/2297/1829
関連URI: http://dx.doi.org/10.1007/s00396-004-1252-7
資料種別: Journal Article
版表示: author
出現コレクション:1.査読済論文(工)

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