DNA分子の低エネルギー電子照射効果 The Effect of Low-Energy-Electron Irradiation to DNA Molecules

この論文にアクセスする

この論文をさがす

著者

抄録

Secondary electrons with kinetic energies below 20 eV are abundant species generated in living cells by the irradiation with ionizing radiations. It is unclear whether such low-energy electrons are able to induce damage on DNA. In this study, we have directly observed the structural changes of DNA molecules under the irradiation with 4-40 eV electrons which are field-emitted from the tip of a scanning tunneling microscope. Single- and double-strand breaks of linear DNA molecules (λDNA and ΦX DNA) are induced by the electron irradiations. By the electron irradiations of circular DNA molecules (pUC18 DNA) in an entanglement, some parts of the DNA were lost or spread by the dissociation of the molecules. These electron-induced reactions are strongly dependent on the electron energies.

収録刊行物

  • 電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society  

    電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society 127(2), 192-197, 2007-02-01 

    The Institute of Electrical Engineers of Japan

参考文献:  13件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

キーワード

各種コード

  • NII論文ID(NAID)
    10018480484
  • NII書誌ID(NCID)
    AN10065950
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854221
  • NDL 記事登録ID
    8668400
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-795
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ