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    • 2. 发明授权
    • Photographic compositions, elements and processes using
light-activatable enzymes
    • 使用光激活酶的摄影组合物,元件和方法
    • US4356256A
    • 1982-10-26
    • US295444
    • 1981-08-24
    • David F. O'BrienPatricia N. Tyminski
    • David F. O'BrienPatricia N. Tyminski
    • G03C1/72C12Q1/42C12Q1/44C12Q1/61G03C1/73G03C5/24G03C1/52
    • G03C1/731
    • A light-sensitive composition comprising:(1) a plurality of vesicles comprising lipid membranes containing rhodopsin;(2) a mixture of enzymes comprising phosphodiesterase and GTPase;(3) a first nucleotide capable of interacting with GTPase to form a cofactor necessary for the activation of phosphodiesterase;(4) at least one metal cation selected from the group consisting of Mg.sup.+2 and Mn.sup.+2 ; and(5) a second nucleotide capable of being hydrolyzed to produce a proton, said hydrolysis reaction being catalyzed by activated phosphodiesterase, said phosphodiesterase also being activated by rhodopsin exposed by light in the presence of said cofactor and said metal cationis useful in preparing photographic elements comprising means for detecting the hydrolysis reaction, such as an indicator dye. Further, a process for forming an image in the photographic elements comprises imagewise exposing the photographic element to light having a wavelength of 350 to 600 nm, detecting said hydrolysis reaction, and optionally removing the metal cation to render the photographic element insensitive to further exposure.
    • 一种感光组合物,其包含:(1)包含含有视紫红质的脂质膜的多个囊泡; (2)包含磷酸二酯酶和GTP酶的酶的混合物; (3)能够与GTP酶相互作用以形成磷酸二酯酶活化所必需的辅因子的第一核苷酸; (4)至少一种选自Mg +2和Mn +2的金属阳离子; 所述水解反应由活化的磷酸二酯酶催化,所述磷酸二酯酶也被所述辅因子存在下被光暴露的视紫红质激活,所述金属阳离子可用于制备摄影 元件包括用于检测水解反应的装置,例如指示剂染料。 此外,用于在照相元件中形成图像的方法包括将照相元件成像曝光至具有350至600nm波长的光,检测所述水解反应,并任选地除去金属阳离子以使照相元件对进一步曝光不敏感。