Acceleration of guanine oxidation under visible light irradiation by photon upconversion based on triplet-triplet annihilation.

Kazuo Tanaka, Narufumi Kitamura, Kenichi Inafuku, Yoshiki Chujo

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We report the fluorescent polymer complex which can show fluorescence emission at 380 nm with the excitation of 520 nm in aqueous media. This photon upconversion based on triplet-triplet annihilation can efficiently take place via inter-molecular energy transfers between the Ru complex as a sensitizer and anthracene molecules as an emitter captured into the water-soluble network polymers. We performed the oxidation reaction of 2'-deoxyguanosine by riboflavin in the presence of the polymer complex with the visible light irradiation. It was clearly indicated that oxidative decomposition can be accelerated by UV light generation via upconversion based on triplet-triplet annihilation.

Original languageEnglish
Pages (from-to)183-184
Number of pages2
JournalNucleic acids symposium series (2004)
Issue number53
DOIs
Publication statusPublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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