DNA damage upon UV illumination in the presence of inorganic UV-shielding materials

Tsugio Sato, Ahmed Mohamed El-Toni, Shu Yin, Hisao Hidaka

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    White nanoparticles of calcia-doped ceria were prepared from the precipitate by reacting CeCl3-CaCl2 mixed solution with NaOH solution at pH 12 and the oxidation with hydrogen peroxide solution at 40°C, followed by the calcination at 700°C for 1 h. Ceria particles generated far less singlet oxygen and caused far less damage to the DNA plasmids upon UV illumination than either the titania or the zinc oxide reference pigments.

    Original languageEnglish
    Pages (from-to)293-296
    Number of pages4
    JournalKey Engineering Materials
    Volume352
    DOIs
    Publication statusPublished - 2007 Jan 1

    Keywords

    • Calcia-doped ceria
    • DNA damage
    • Inorganic UV-shielding material
    • Photocatalytic activity
    • Singlet oxygen

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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