WEKO3
アイテム
Hydration of Nucleobase as Probed by Electron Emission of Uridine-5’-Mono-Phosphate (UMP) in Aqueous Solution Induced by Nitrogen K-Shell Ionization
https://repo.qst.go.jp/records/79302
https://repo.qst.go.jp/records/79302fb7207fa-ad79-4fca-b1f4-11cdd43cc457
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-11 | |||||
| タイトル | ||||||
| タイトル | Hydration of Nucleobase as Probed by Electron Emission of Uridine-5’-Mono-Phosphate (UMP) in Aqueous Solution Induced by Nitrogen K-Shell Ionization | |||||
| 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 | |||||
| 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 |
Yasuaki, Takeda(東京農工大)
× Yasuaki, Takeda(東京農工大)× Hiroyuki, Shimada(東京農工大)× Ryosuke, Miura(東京農工大)× Masatoshi, Ukai(東京農工大)× Fujii, Kentaro× Yoshihiro, Fukuda(スプリングエイトサービス)× Yuji, Saitoh(原子力機構)× Kentaro, Fujii |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To identify the precise early radiation processes of DNA lesions, we measure electron kinetic energy spectra emitted from uridine-5’ monophosphate (UMP) in aqueous solution for the photoionization of the N 1s orbital electron and for the following Auger effect using a monochromatic soft X-ray synchrotron radiation at energies above the nitrogen K-shell ionization threshold. The change of photoelectron spectra for UMP in aqueous solutions at different proton concentrations (pH = 7.5 and 11.3) is ascribed to the chemical shift of the N3 nitrogen atom in uracil moiety of canonical and deprotonated forms. The lowest double ionization potentials for aqueous UMP at different pH obtained from the Auger electron spectra following the N 1s photoionization values show the electrostatic aqueous interaction of uracil moiety of canonical (neutral) and deprotonated (negatively charged) forms with hydrated water molecules. | |||||
| 書誌情報 |
Quantum Beam Science 巻 4, 号 1, p. 10, 発行日 2020-02 |
|||||
| 出版者 | ||||||
| 出版者 | MDPI | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2412-382X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3390/qubs4010010 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.mdpi.com/2412-382X/4/1/10 | |||||
