Generation of reactive oxygen species in water under exposure to visible or infrared irradiation at absorption bands of molecular oxygen |
| |
| Authors: | S. V. Gudkov O. E. Karp S. A. Garmash V. E. Ivanov A. V. Chernikov A. A. Manokhin M. E. Astashev L. S. Yaguzhinsky V. I. Bruskov |
| |
| Affiliation: | 1.Institute of Theoretical and Experimental Biophysics,Russian Academy of Sciences,Pushchino, Moscow Region,Russia;2.Pushchino State University,Pushchino, Moscow Region,Russia;3.Institute of Cell Biophysics,Russian Academy of Sciences,Pushchino, Moscow Region,Russia;4.Moscow State University,Moscow,Russia |
| |
| Abstract: | It is found that in bidistilled water saturated with oxygen, hydrogen peroxide and hydroxyl radicals are formed under the
influence of visible and infrared radiation in the absorption bands of molecular oxygen. Formation of reactive oxygen species
(ROS) occurs under the influence of both solar and artificial light sources, including the coherent laser irradiation. The
oxygen effect, i.e. the impact of dissolved oxygen concentration on production of hydrogen peroxide induced by light, is detected.
It is shown that the visible and infrared radiation in the absorption bands of molecular oxygen leads to the formation of
8-oxoguanine in DNA in vitro. Physicochemical mechanisms of ROS formation in water when exposed to visible and infrared light
are studied, and the involvement of singlet oxygen and superoxide anion radicals in this process is shown. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
