Fluorescence switching of photochromic vinylpyrene-substituted 2′-deoxyguanosine |
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| Authors: | Yoshio Saito Katsuhiko Matsumoto Subhendu Sekhar Bag Takashi Morii |
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| Institution: | a Department of Materials Chemistry and Engineering, School of Engineering, Nihon University, Koriyama, Fukushima 963-8642, Japan
b Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan |
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| Abstract: | We synthesized C8-vinylpyrene-substituted 2′-deoxyguanosine VPyG and studied the photoregulated reversible E-Z isomerization. When E-isomer was irradiated with visible light (>420 nm), E- toZ-isomerization took place very rapidly, while upon irradiation with UV-light (∼365 nm), Z-isomer was converted to E-isomer. When Z-isomer was illuminated with 365-400 nm light, no fluorescence was observed, while E-isomer showed a very strong fluorescence emission, indicating that VPyG could be a useful fluorescence switching molecule. |
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