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- ISHINO Shouhei
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Kanazawa University
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- ASAKAWA Tsuyoshi
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Kanazawa University
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- OHTA Akio
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Kanazawa University
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- MIYAGISHI Shigeyoshi
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Kanazawa University
書誌事項
- タイトル別名
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- Fluorescence Quenching of Quinoline Derivatives in a Micelle System
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抄録
The halide-sensitive fluorescence probe, 6-methoxy-N-alkylquinolinium, was prepared to investigate the behavior of counterion dissociation in micellar aqueous solution. Fluorescence was quenched by halide ions based on linear Stern-Volmer plots. The plots indicated a distinct break at cmc of cationic surfactants containing halide counterions. The slope of Stern-Volmer for 6-methoxy-N-ethylquinolinium (MEQ) decreased beyond cmc owing to micellar counterion binding. The quenching efficiency of 6-methoxy-N-dodecylquinolinium (C12MQ) increased significantly beyond cmc with surfactant concentration. The fluorescence of micellar solubilized C12MQ would thus appear to be quenched effectively by halide ions at the micellar surface. These ions were found to function effectively as a quencher in cationic micelle systems, but to have no effect on amphiphilic probe fluorescence in the presence of anionic micelles. Repulsive electrostatic interactions are thus shown to occur between halide ions and anionic micelles containing probes.<br>
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 52 (10), 535-540, 2003
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679068061824
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- NII論文ID
- 130000060172
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- NII書誌ID
- AA11503337
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 6685487
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可