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    • 2. 发明授权
    • Immunoassay for measuring the concentration of antigen in a sample
    • 用于测量样品中抗原浓度的免疫测定
    • US4824778A
    • 1989-04-25
    • US867554
    • 1986-05-28
    • Keiichi NagaiDaizo TokinagaKazumichi ImaiKenji YasudaSatoshi TakahashiTeruaki Kobayashi
    • Keiichi NagaiDaizo TokinagaKazumichi ImaiKenji YasudaSatoshi TakahashiTeruaki Kobayashi
    • G01N33/543G01N33/561G01N33/53
    • G01N33/561Y10S435/968
    • An immunoassay comprisingimmobilizing antibody in a matrix for electrophoresis;immobilizing antigen in a measurement sample by subjecting the same to antigen antibody reaction with the above-mentioned immobilized antibody by a procedure of moving the antigen by electrophoresis;either moving labeled antibody to the above-mentioned immobilized antigen by electrophoresis to react the same with the immobilized antigen, or moving labeled antigen to the unreacted portion of the above-mentioned immobilized antibody by electrophoresis to react the same with the unreacted portion; andmeasuring the concentration of antigen in the sample, characterized byusing as a label for the labeled antibody or the labeled antigen an enzyme capable of coverting a substrate into a fluorescent substance,moving the substrate convertible into a fluorescent substance by said enzyme by electrophoresis,reacting the substrate with the label enzyme to convert the same into a fluorescent substance, andmeasuring the concentration of the fluorescent substance in the electrolyte solution.
    • 免疫测定法,其包括将抗体固定在用于电泳的基质中; 通过使抗原通过电泳移动的方法,将抗原固定在测量样品中,使其与上述固定化抗体进行抗原抗体反应; 通过电泳将标记抗体移动到上述固定化抗原上,使其与固定化抗原反应,或通过电泳将标记的抗原移动到上述固定化抗体的未反应部分,使其与未反应部分反应; 测定样品中的抗原浓度,其特征在于,将标记抗体或标记抗原的标记作为能够将底物覆盖成荧光物质的酶,通过电泳将所述酶转化为荧光物质, 使底物与标记酶反应,将其转化为荧光物质,并测量电解质溶液中荧光物质的浓度。
    • 4. 发明授权
    • DNA measuring method
    • DNA测定方法
    • US5356776A
    • 1994-10-18
    • US942470
    • 1992-09-09
    • Hideki KambaraKazunori OkanoSatoshi TakahashiKeiichi NagaiTetsuo Nishikawa
    • Hideki KambaraKazunori OkanoSatoshi TakahashiKeiichi NagaiTetsuo Nishikawa
    • C12M1/00C12Q1/68G01N27/447G01N33/53G01N33/58C12Q1/70
    • G01N27/44726C12Q1/68G01N27/447Y10T436/143333
    • DNA molecule length can be measured with high precision and efficiency by 1) using such means as electrophoresis gel migration to orient a DNA molecule having a fluorescence label at both its termini into a straight line by its passing through a migration path having in a portion of it an area not more than several micrometers in diameter, detecting the fluorescence label at both the termini at a predetermined location and measuring the interval between the detection of the fluorescence coming from one terminus and that of the fluorescence from the other or by 2) a DNA molecule bound to a fluorescence label at one terminus and to a particle at the other being led as a whole by such means as electric field application into an aperture smaller in diameter than the particle, leaving the particle fixed at the mouth of the aperture to stretch the DNA molecule and detecting the fluorescence position to measure the distance between the bound particle and the bound fluorescence label.
    • 可以通过以下方式测量DNA分子长度:1)使用电泳凝胶迁移的方式,通过其经过一部分迁移路径将具有两端的荧光标记的DNA分子定向成直线 它是直径不超过几微米的区域,在预定位置的两个末端检测荧光标记,并测量从一个末端检测荧光和来自另一个末端的荧光检测之间的间隔,或者通过2)a 在一个末端与一个荧光标记结合的DNA分子和另一个的一个粒子整体通过电场施加到比颗粒直径更小的孔隙中,将颗粒固定在孔的口处 拉伸DNA分子并检测荧光位置以测量结合的颗粒和结合的荧光标记之间的距离。
    • 6. 发明申请
    • METHOD OF ANALYZING NUCLEIC ACID
    • 分析核酸的方法
    • US20100173287A1
    • 2010-07-08
    • US12090701
    • 2006-03-07
    • Yukie NakashimaKeiichi Nagai
    • Yukie NakashimaKeiichi Nagai
    • C12Q1/68
    • C12Q1/6816C12Q1/6839C12Q2537/119C12Q2521/501
    • According to the present invention, stable amplification of a small amount of nucleic acid and analysis of the same with good sensitivity can be realized by improving efficiency of hybridization primers or probes with a probe. Specifically, the present invention relates to a method of analyzing nucleic acid comprising: a step of hybridizing at least one type of a first probe comprising a 1st sequence complementary to one strand of double-strand nucleic acid, a 2nd sequence complementary to the other strand thereof with the double-strand nucleic acid, and a 3rd sequence that binds the 1st sequence and the 2nd sequence; and a step of hybridizing at least one type of a second probe with the double-strand nucleic acid.
    • 根据本发明,通过用探针提高杂交引物或探针的效率,可以实现少量核酸的稳定扩增及其灵敏度的分析。 具体地说,本发明涉及分析核酸的方法,包括:将至少一种类型的第一探针杂交的步骤,所述第一探针包含与一条双链核酸互补的第一序列,与另一条链互补的第二序列 与第二序列和第二序列结合的第三序列; 以及使至少一种类型的第二探针与双链核酸杂交的步骤。
    • 9. 发明授权
    • Capillary array electrophoresis apparatus
    • 毛细管阵列电泳仪
    • US06531044B1
    • 2003-03-11
    • US09425064
    • 1999-10-25
    • Takashi AnazawaKeiichi Nagai
    • Takashi AnazawaKeiichi Nagai
    • G01N2726
    • G01N27/44782G01N27/44721
    • The electrophoresis apparatus includes plural capillaries for separating fluorephore-labeled samples by electrophoresis, fluorescence detecting parts provided in a part of these capillaries arranged in the same place for detecting a fluorescence emitted by fluorephore labels when a part of the plural capillaries is scanned and irradiated by a laser beam, and a fluorescence detection system for detecting this fluorescence. The fluorescence detecting parts are scanned and repeatedly irradiated by the laser bean where a scanning period of the fluorescence detecting parts by the laser bean is t1, and the fluorescence is detected by the fluorescence detecting system where an acquisition time of fluorescence signal is t2 (t1≦t2). The laser bean from a laser source is narrowly converged by a light collecting lens, and a galvanomirror is rotated in a rotation directional of the galvanomirror around the rotation axis of the galvanomirror so as to repeatedly scan the fluorescence detecting parts.
    • 电泳装置包括多个毛细管,用于通过电泳分离荧光标记的样品,荧光检测部分设置在这些毛细管的一部分中,布置在相同的位置,用于当多个毛细血管的一部分被扫描和照射时,用于检测由荧光标记物发出的荧光 激光束和用于检测该荧光的荧光检测系统。 荧光检测部件被激光束的荧光检测部的扫描期间为t1的激光束扫描并重复照射,荧光检测系统通过荧光检测系统检测荧光,其中荧光信号的获取时间为t2(t1 <= t2)。 来自激光源的激光束由聚光透镜狭窄地收敛,并且电流镜以电流镜的旋转方向围绕电流镜的旋转轴线旋转,以便重复扫描荧光检测部分。