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    • 5. 发明申请
    • Dna enzyme and method for controlling activity thereof
    • Dna酶及其活性控制方法
    • US20070203331A1
    • 2007-08-30
    • US10590777
    • 2005-02-24
    • Hiroyuki AsanumaMakoto KomiyamaDaijiro MatsunagaTakeshi Kuramochi
    • Hiroyuki AsanumaMakoto KomiyamaDaijiro MatsunagaTakeshi Kuramochi
    • C07H21/04
    • C12N9/22C07H21/04
    • A DNA enzyme having the RNA cleavage activity significantly improved as compared with those of known DNA enzymes and a method for controlling the activity, the method being capable of reversibly controlling the RNA cleavage activity of the DNA enzyme by light irradiation, are provided. The DNA enzyme includes a nucleotide residue, to which any one organic group selected from the group consisting of azobenzene, spiropyran, stilbene, and derivatives thereof is bonded, at a 3′-side end of a catalytically active loop of the DNA enzyme. The method for controlling the activity includes the step of applying light at specific wavelengths to the DNA enzyme including a nucleotide residue, to which any one organic group selected from the group consisting of azobenzene, spiropyran, stilbene, and derivatives thereof is bonded, and thereby, effecting reversible structural isomerization between a planar structure and a nonplanar structure of the organic group, so as to control the RNA cleavage activity of the DNA enzyme.
    • 提供了与已知DNA酶相比具有RNA切割活性的DNA酶和控制活性的方法,通过光照射能够可逆地控制DNA酶切割活性的方法。 DNA酶包括在DNA酶的催化活性环的3'端的核苷酸残基,其中选自偶氮苯,螺吡喃,二苯乙烯及其衍生物中的任何一个有机基团均与之结合。 用于控制活性的方法包括将具有特定波长的光包括在DNA酶中的步骤,所述DNA酶包括核苷酸残基,任意一个选自偶氮苯,螺吡喃,二苯乙烯及其衍生物的有机基团与其结合,从而 ,在有机基团的平面结构和非平面结构之间进行可逆结构异构化,以控制DNA酶的RNA切割活性。
    • 10. 发明授权
    • Color diffusion transfer photographic material
    • 彩色扩散转印照相材料
    • US5447834A
    • 1995-09-05
    • US223822
    • 1994-04-04
    • Munehisa FujitaHiroyuki Asanuma
    • Munehisa FujitaHiroyuki Asanuma
    • G03C1/18G03C1/015G03C1/08G03C1/29G03C8/08G03C8/10G03C1/07G03C1/12
    • G03C1/015G03C1/29G03C8/10
    • A color photographic material for diffusion transfer which comprises a support having thereon at least one light-sensitive silver halide emulsion layer containing a combination of a reducible dye providing compound represented by the following general formula (I) and an electron donor, said reducible dye providing compound releasing a diffusing dye when reduced, wherein at least one layer of silver halide emulsion layers contains a silver halide emulsion obtained by treating a silver halide emulsion, previously chemical sensitized in the presence of a sensitizing dye, with a solid adsorbent to desorb a part or the whole of the adsorbed dye.PWR-(Time).sub.t -Dye (I)wherein PWR represents a group which releases -(Time).sub.t -Dye when reduced; Time represents a group which releases Dye through subsequent reactions after -(Time).sub.t -Dye is released from PWR; t represents an integer of 0 or 1; and Dye represents a dye or a precursor thereof.
    • 一种用于扩散转移的彩色照相材料,其包括其上具有至少一种含有由以下通式(I)表示的可还原染料提供化合物与电子给体的组合的感光卤化银乳剂层的支持体,所述可还原染料提供 化合物在还原时释放扩散染料,其中至少一层卤化银乳剂层含有卤化银乳剂,其通过处理预先在敏化染料存在下敏化的卤化银乳剂与固体吸附剂一起解吸一部分 或全部吸附染料。 PWR-(时间)t-染料(I)其中PWR表示当减少时释放 - (时间)t-染料的组; 时间表示在 - (时间)t-Dye从PWR释放后随后反应释放染料的组; t表示0或1的整数; 染料代表染料或其前体。