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Mechanistic Analysis of Ion Association between Dendrigraft Poly- l -lysine and 8-Anilino-1-naphthalenesulfonate at Liquid|Liquid Interfaces
https://doi.org/10.24517/00050466
https://doi.org/10.24517/000504667e51ca1b-523e-4bf8-9d54-4d63dc721702
名前 / ファイル | ライセンス | アクション |
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SC-PR-NAGATANI-H-3237.pdf (789.4 kB)
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SC-PR-NAGATANI-H-Supporting_Information.pdf (195.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-04-05 | |||||
タイトル | ||||||
タイトル | Mechanistic Analysis of Ion Association between Dendrigraft Poly- l -lysine and 8-Anilino-1-naphthalenesulfonate at Liquid|Liquid Interfaces | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
ID登録 | ||||||
ID登録 | 10.24517/00050466 | |||||
ID登録タイプ | JaLC | |||||
著者 |
Nagatani, Hirohisa
× Nagatani, Hirohisa× Fujisawa, Masataka× Imura, Hisanori |
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著者別表示 |
永谷, 広久
× 永谷, 広久× 井村, 久則 |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学理工研究域物質化学系 | |||||
書誌情報 |
Langmuir 巻 34, 号 10, p. 3237-3243, 発行日 2018-03-13 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0743-7463 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10461730 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1021/acs.langmuir.8b00131 | |||||
出版者 | ||||||
出版者 | American Chemical Society | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Molecular association between biocompatible dendritic polymers, dendrigraft poly-l-lysines (DGLs), and an anionic fluorescent probe, 8-anilino-1-naphthalenesulfonate (ANS-), was studied at the polarized water|1,2-dichloroethane (DCE) interface. The fluorescence intensity of ANS measured in aqueous solution was enhanced by the coexistence of DGLs over a wide pH range (2 < pH < 10), where ANS and DGL exist as a monoanionic form and a polycation, respectively. The voltammetric responses indicated that the positively charged DGLs were adsorbed at the water|DCE interface, whereas ANS- was transferred across the interface accompanied by the adsorption process. The interfacial behavior of the DGL-ANS associates was analyzed by potential-modulated fluorescence (PMF) spectroscopy. The PMF results demonstrated that the ion association between DGLs and ANS at the water|DCE interface is strongly affected by the applied potential and the dendritic generation of DGL. By applying appropriate potentials, the ANS anion was dissociated from its ion associate with DGLs at the interface and transferred into the organic phase, whereas DGLs remained in the aqueous phase. The Gibbs free energy of ion association (ΔGD···ANS) was estimated for the second-fourth generation DGLs (DGL-G2-G4) and the G4 polyamidoamine (PAMAM) dendrimer as a control. The highest stability of the DGL-G4-ANS associate manifested itself through ΔGD···ANS: DGL-G4-ANS (>G4 PAMAM dendrimer-ANS) > DGL-G3-ANS > DGL-G2-ANS. The results elucidated the efficient anion-binding ability of higher generation DGLs and its potential dependence at the liquid|liquid interface. © 2018 American Chemical Society. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Embargo Periods 12 Months | |||||
権利 | ||||||
権利情報 | Copyright © 2018 American Chemical Society | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |