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Inclusion Complex of 2,2-Diphenyl-1-picrylhydrazyl Radical with beta-Cyclodextrin as a Redox Probe in Aqueous Systems
https://repo.qst.go.jp/records/72656
https://repo.qst.go.jp/records/726563ddb9efa-6f8d-408c-a241-889e208079d8
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-02-12 | |||||
| タイトル | ||||||
| タイトル | Inclusion Complex of 2,2-Diphenyl-1-picrylhydrazyl Radical with beta-Cyclodextrin as a Redox Probe in Aqueous Systems | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Nakanishi, Ikuo
× Nakanishi, Ikuo× Ozawa, Toshihiko× Matsumoto, Kenichiro× 中西 郁夫× 小澤 俊彦× 松本 謙一郎 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A stable radical, 2,2-diphenyl-1-picrylhydrazyl (DPPH), exhibits reversible one-electron reduction and oxidation behavior with characteristic color changes. In fact, DPPH has been used as a dosimeter in radiation chemistry as well as a reactivity model of reactive oxygen species to evaluate the activity of antioxidants in non-aqueous and semi-aqueous media. However, the insolubility of DPPH in water has precluded its use in aqueous systems, in particular, physiological concentration (> 0.1 M) of buffer solutions. Recently, we have succeeded in solubilizing DPPH in water using beta-cyclodextrin (beta-CD). In this study, it is demonstrated that beta-CD solubilized DPPH can be used not only as a radiation dosimeter in water but also as a powerful tool to evaluate activity of water-soluble antioxidants in concentrated buffer solutions. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Gordon Research Conference on Oxygen Radicals | |||||
| 発表年月日 | ||||||
| 日付 | 2018-02-07 | |||||
| 日付タイプ | Issued | |||||
