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    • 3. 发明授权
    • Luminescent method for measuring endotoxin
    • 用于测量内毒素的发光方法
    • US08394602B2
    • 2013-03-12
    • US12734485
    • 2008-11-11
    • Akio KurodaKenichi Noda
    • Akio KurodaKenichi Noda
    • C12Q1/56
    • G01N21/763C12Q1/66G01N33/56911G01N33/579
    • The present invention provides a method comprising allowing a reaction of a sample, a reagent containing Factor C, which can be activated by binding with endotoxin, and a synthetic luminescent substrate comprising a luminescent substrate bound to a peptide, for release of the luminescent substrate from the synthetic luminescent substrate, allowing a luminescent enzyme to act on the luminescent substrate released in the luminescent substrate release step, for measurement of the luminescence intensity, and quantifying the level of endotoxin in the sample based on a measured value obtained in the luminescence measuring step, the method enabling endotoxin to be simply and quickly measured at a level that cannot be detected in conventional methods for endotoxin measurement, without use of any dedicated measuring device.
    • 本发明提供了一种方法,其包括使样品,可通过与内毒素结合而活化的因子C的试剂与包含与肽结合的发光底物的合成发光底物反应,从而将发光底物从 所述合成发光基板允许发光酶作用于在所述发光底物释放步骤中释放的所述发光基板,用于测量所述发光强度,并且基于在所述发光测量步骤中获得的测量值来定量所述样品中的内毒素水平 ,在不使用任何专用测量装置的情况下,能够以常规的内毒素测量方法无法检测的水平简单且快速地测量内毒素的方法。
    • 8. 发明授权
    • Bias circuit for controlling bias voltage of differential amplifier
    • 用于控制差分放大器偏置电压的偏置电路
    • US5488330A
    • 1996-01-30
    • US361583
    • 1994-12-22
    • Hideaki MasuokaAkio Kuroda
    • Hideaki MasuokaAkio Kuroda
    • H03G11/00H03D7/14H03F1/32H03F3/45H04B1/26
    • H03F3/4521H03F1/3211H03F3/45085H03F3/45089H03F2203/45366H03F2203/45542H03F2203/45544H03F2203/45574H03F2203/45702
    • A first differential amplifier includes first and second transistors. A bias circuit includes a second differential amplifier, a constant-current source, and a capacitor. The bases of third and fourth transistors constituting a second differential amplifier, are connected to those of the first and second transistors, respectively. The constant-current source supplies a constant current to the third and fourth transistors, and one end of the capacitor is connected to a connection node of the constant-current source and fourth transistor. In the bias circuit, when a high-level signal is supplied to the base of the first transistor, the capacitor is charged and discharged in accordance with the operations of the third and fourth transistors, with the result that the base potential of the first and second transistors is stabilized, and the operation current flowing through the first differential amplifier is prevented from increasing.
    • 第一差分放大器包括第一和第二晶体管。 偏置电路包括第二差分放大器,恒流源和电容器。 构成第二差分放大器的第三和第四晶体管的基极分别连接到第一和第二晶体管的基极。 恒流源向第三和第四晶体管提供恒定电流,并且电容器的一端连接到恒流源和第四晶体管的连接节点。 在偏置电路中,当向第一晶体管的基极提供高电平信号时,根据第三和第四晶体管的操作对电容器进行充电和放电,结果是第一和第二晶体管的基极电位 第二晶体管稳定,并且防止流过第一差分放大器的工作电流增加。