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  • Title: Autonomous DNA computing machine based on photochemical gate transition.
    Author: Ogasawara S, Ami T, Fujimoto K.
    Journal: J Am Chem Soc; 2008 Aug 06; 130(31):10050-1. PubMed ID: 18613667.
    Abstract:
    We report the construction of a one-pot autonomous DNA computing machine based on photochemical gate transition (photocleavage, hybridization, and photoligation), and we performed binary digit additions using this machine. In our method, both photochemical DNA manipulations previously reported, photoligation via 5-carboxyvinyldeoxyuridene (cvU) containing ODN and photocleavage via carbazole-modified ODN, were employed. The binary digit additions were autonomously carried out by one-time irradiation at 366 nm in the single test tube. The fluorescence readout by the DNA chip was in good agreement with the correct answer of binary digit additions. We believe that this system is easily applicable to correlation analysis between SNPs as well as other binary digit processing, such as subtraction.
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