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Published on: February 11, 2016
Singlet oxygen generation from Li⁺@C⁺₆₀ nano-aggregates dispersed by laser irradiation in aqueous solution
Kei Ohkubo1, Naoki Kohno, Yusuke Yamada
1Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA and SENTAN, Japan Science and Technology Agency (JST), Suita, Osaka 565-0871, Japan. ookubo@chem.eng.osaka-u.ac.jp fukuzumi@chem.eng.osaka-u.ac.jp.
Abstract:
Laser pulse irradiation of a deaerated aqueous solution containing the solid state lithium ion-encapsulated fullerene resulted in the formation of highly dispersed nano-aggregates (Li(+)@C60)n. Photoirradiation of an O2-saturated D2O solution containing (Li(+)@C60)n gave singlet oxygen with 55% quantum yield, leading to efficient double-stranded DNA cleavage.

