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ssDNA damage dependence from singlet oxygen concentration at photodynamic interaction

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, , Citation V.V. Klimenko et al 2017 J. Phys.: Conf. Ser. 917 042013 DOI 10.1088/1742-6596/917/4/042013

1742-6596/917/4/042013

Abstract

Single stranded DNA damage at photodynamic treatment with Radachlorin photosensitizer was investigated. Chemical trap method was used to evaluate generation of singlet oxygen in water solution. Interaction of singlet oxygen with ssDNA resulted into decrease of the replication activity of ssDNA. DNA stopped replicating during PCR at irradiation doses greater than 15 J/cm2 and concentration of photosensitizer [PS] = 3.8 μM. The dependence of replication activity of ssDNA on generated singlet oxygen concentration was identified.

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10.1088/1742-6596/917/4/042013