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DNA Damage Upon UV Illumination in the Presence of Inorganic UV-Shielding Materials

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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 40oC, followed by the calcination at 700oC 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.

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Periodical:

Key Engineering Materials (Volume 352)

Pages:

293-296

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.352.293

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Online since:

August 2007

Authors:

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

Keywords:

Calcia-doped Ceria, DNA Damage, Inorganic UV-Shielding Material, Photocatalytic Activity, Singlet Oxygen

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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