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Heavy-ion beam-induced reactive oxygen species and redox reactions
https://repo.qst.go.jp/records/82044
https://repo.qst.go.jp/records/8204431f59c5a-e37f-440f-be0d-830981939111
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Matsumoto.K.2021.Free.Radic.Res.55(4).450-460.pdf (1.9 MB)
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| Item type | 一般雑誌記事 / Article(1) | |||||
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| 公開日 | 2020-10-28 | |||||
| タイトル | ||||||
| タイトル | Heavy-ion beam-induced reactive oxygen species and redox reactions | |||||
| 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 | article | |||||
| 著者 |
Ken-ichiro, Matsumoto
× Ken-ichiro, Matsumoto× Ueno, Megumi× Shoji, Yoshimi× Nakanishi, Ikuo× Kenichiro, Matsumoto× Megumi, Ueno× Yoshimi, Shoji× Ikuo, Nakanishi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Quantification and local density estimation of radiation-induced reactive oxygen species (ROS) were described focusing on our recent and related studies. Charged particle radiation, i.e. heavy-ion-beams, are currently utilized for medical treatment. Differences in ROS generation properties between photon and charged particle radiation may lead to differences in the quality of radiation. Radiation-induced generation of ROS in water was quantified using several different approaches to electron paramagnetic resonance (EPR) techniques. Two different densities of localized hydroxyl radical (•OH) generation, i.e. milli-molar and molar levels, were described. Yields of sparse •OH decreased with increasing LET, the yield total •OH was not affected by LET. In the high-density, molar level, •OH environment, •OH can react and directly make hydrogen peroxide (H2O2), and then possible form a high-density H2O2 cluster. The amount of total oxidation reactions caused by oxidative ROS, such as •OH and HO2•, was decreased with increasing LET. Possibilities of the sequential reactions were discussed based on the initial localized density at the generated site. Water-induced ROS have been well investigated. However, little is known about radiation-induced free radical generation in lipidic conditions. Radio-chemistry to understand the sequential radio-biological effects is still under development. | |||||
| 書誌情報 |
Free Radical Research 巻 55, 号 4, p. 450-460, 発行日 2021-03 |
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| 出版者 | ||||||
| 出版者 | Taylor & Francis | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1029-2470 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1080/10715762.2021.1899171 | |||||
