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

Kazuo Tanaka | Zendy; Narufumi Kitamura | Zendy; K. Inafuku | Zendy; Yoshiki Chujo | Zendy

Open Access

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

Author(s) -

Kazuo Tanaka,

Narufumi Kitamura,

K. Inafuku,

Yoshiki Chujo

Publication year - 2009

Publication title -

nucleic acids symposium series

Language(s) - English

Resource type - Journals

eISSN - 1746-8272

pISSN - 0261-3166

DOI - 10.1093/nass/nrp092

Subject(s) - photochemistry , photon upconversion , anthracene , annihilation , fluorescence , chemistry , irradiation , aqueous solution , phthalocyanine , materials science , optoelectronics , optics , doping , physics , organic chemistry , quantum mechanics , nuclear physics

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.

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