Nucleosides possessing blocked aliphatic amino groups
    1.
    发明授权
    Nucleosides possessing blocked aliphatic amino groups 失效
    具有封闭脂肪族氨基的核苷

    公开(公告)号:US5015733A

    公开(公告)日:1991-05-14

    申请号:US287387

    申请日:1988-12-19

    IPC分类号: C07H21/00 C12Q1/68

    CPC分类号: C07H21/00 C12Q1/6816

    摘要: The invention consists of compounds and methods for the synthesis of oligonucleotides which contain one or more free aliphatic amino groups attached to the sugar moieties of the nucleoside subunits. The synthetic method is versatile and general, permitting amino groups to be selectively placed at any position on oligonucleotides of any composition or length which is attainable by current DNA synthetic methods. Fluorescent dyes or other detectable moieites may be covalently attached to the amino groups to yield the corresponding modified oligonucleotide.

    摘要翻译: 本发明由用于合成寡核苷酸的化合物和方法组成,其含有连接至核苷亚基的糖部分的一个或多个游离脂族氨基。 合成方法是通用且通用的,允许将氨基选择性地置于任何可通过当前DNA合成方法获得的组合物或长度的寡核苷酸上的任何位置。 可以将荧光染料或其它可检测的硅氧烷共价连接到氨基上,得到相应的修饰寡核苷酸。

    Oligonucleotides possessing a primary amino group in the terminal
nucleotide
    2.
    发明授权
    Oligonucleotides possessing a primary amino group in the terminal nucleotide 失效
    在末端核苷酸中具有伯氨基的寡核苷酸

    公开(公告)号:US5118800A

    公开(公告)日:1992-06-02

    申请号:US661914

    申请日:1991-02-27

    IPC分类号: C07H21/00 C12Q1/68

    CPC分类号: C07H21/00 C12Q1/6816

    摘要: The invention consists of compounds and methods for the synthesis of oligonucleotides which contain one or more free aliphatic amino groups attached to the sugar moieties of the nucleoside subunits. The synthetic method is versatile and general, permitting amino groups to be selectively placed at any position on oligonucleotides of any composition or length which is attainable by current DNA synthetic methods. Fluorescent dyes or other detectable moieties may be covalently attached to the amino groups to yield the corresponding modified oligonucleotide.

    摘要翻译: 本发明由用于合成寡核苷酸的化合物和方法组成,其含有连接至核苷亚基的糖部分的一个或多个游离脂族氨基。 合成方法是通用且通用的,允许将氨基选择性地置于任何可通过当前DNA合成方法获得的组合物或长度的寡核苷酸上的任何位置。 荧光染料或其它可检测部分可以共价连接到氨基上以产生相应的修饰的寡核苷酸。

    DNA-reporter conjugates linked via the 2' or 5'-primary amino group of
the 5'-terminal nucleoside
    3.
    发明授权
    DNA-reporter conjugates linked via the 2' or 5'-primary amino group of the 5'-terminal nucleoside 失效
    通过5'-末端核苷的2'或5'-末端氨基连接的DNA-报道偶联物

    公开(公告)号:US5118802A

    公开(公告)日:1992-06-02

    申请号:US661913

    申请日:1991-02-27

    IPC分类号: C07H21/00 C12Q1/68

    CPC分类号: C07H21/00 C12Q1/6816

    摘要: The invention consists of compounds and methods for the synthesis of oligonucleotides which contain one or more free aliphatic amino groups attached to the sugar moieties of the nucleoside subunits. The synthetic method is versatile and general, permitting amino groups to be selectively placed at any position on oligonucleotides of any composition or length which is attainable by current DNA synthetic methods. Fluorescent dyes or other detectable moieties may be covalently attached to the amino groups to yield the corresponding modified oligonucleotide.

    摘要翻译: 本发明由用于合成寡核苷酸的化合物和方法组成,其含有连接至核苷亚基的糖部分的一个或多个游离脂族氨基。 合成方法是通用且通用的,允许将氨基选择性地置于任何可通过当前DNA合成方法获得的组合物或长度的寡核苷酸上的任何位置。 荧光染料或其它可检测部分可以共价连接到氨基上以产生相应的修饰的寡核苷酸。

    Nanopillar arrays for electron emission
    4.
    发明授权
    Nanopillar arrays for electron emission 有权
    用于电子发射的纳米柱阵列

    公开(公告)号:US07884324B2

    公开(公告)日:2011-02-08

    申请号:US12130103

    申请日:2008-05-30

    IPC分类号: G01N23/00 G01N13/10 H01J49/08

    摘要: The present invention provides systems, devices, device components and structures for modulating the intensity and/or energies of electrons, including a beam of incident electrons. In some embodiments, for example, the present invention provides nano-structured semiconductor membrane structures capable of generating secondary electron emission. Nano-structured semiconductor membranes of this aspect of the present invention include membranes having an array of nanopillar structures capable of providing electron emission for amplification, filtering and/or detection of incident radiation, for example secondary electron emission and/or field emission. Nano-structured semiconductor membranes of the present invention are useful as converters wherein interaction of incident primary electrons and nanopillars of the nanopillar array generates secondary emission. Nano-structured semiconductor membranes of this aspect of the present invention are also useful as directed charge amplifiers wherein secondary emission from a nanopillar array provides gain functionality for increasing the intensity of radiation comprising incident electrons.

    摘要翻译: 本发明提供了用于调制包括入射电子束的电子的强度和/或能量的系统,装置,器件组件和结构。 在一些实施例中,例如,本发明提供能够产生二次电子发射的纳米结构的半导体膜结构。 本发明该方面的纳米结构半导体膜包括具有能够提供用于放射,滤波和/或检测入射辐射的电子发射的纳米柱结构阵列的膜,例如二次电子发射和/或场发射。 本发明的纳米结构半导体膜可用作其中纳米柱阵列的入射一次电子和纳米柱的相互作用产生二次发射的转换器。 本发明该方面的纳米结构半导体膜也可用作定向电荷放大器,其中来自纳米柱阵列的二次发射提供了用于增加包括入射电子的辐射强度的增益功能。

    Horizontal gel electrophoresis apparatus
    6.
    发明授权
    Horizontal gel electrophoresis apparatus 失效
    水平凝胶电泳仪

    公开(公告)号:US5228971A

    公开(公告)日:1993-07-20

    申请号:US878632

    申请日:1992-05-04

    IPC分类号: G01N27/447

    CPC分类号: G01N27/44704 G01N27/44756

    摘要: A horizontal electrophoresis assembly is described which is designed to utilize very thin gels of polyacrylamide. The assembly allows for water cooling of the gel during electrophoresis so that higher voltages can be applied to the gel without polymer degradation. The gel mold is made from a set of glass plates which are clamped into place defining a gel mold between them. In one embodiment, the site of field introduction is separated from the site of sample introduction so that the electric field is generally linear at the region of sample introduction.

    摘要翻译: 描述了一种设计用于使用非常薄的聚丙烯酰胺凝胶的水平电泳组件。 该组件允许在电泳期间水冷却凝胶,使得更高的电压可以施加到凝胶上而没有聚合物降解。 凝胶模具由一组玻璃板制成,这些玻璃板被夹紧就位,在它们之间限定凝胶模具。 在一个实施例中,场引入位置与样品引入位置分离,使得电场在样品引入区域通常是线性的。

    Detection apparatus for electrophoretic gels
    8.
    发明授权
    Detection apparatus for electrophoretic gels 失效
    电泳凝胶检测装置

    公开(公告)号:US5162654A

    公开(公告)日:1992-11-10

    申请号:US650393

    申请日:1991-02-01

    IPC分类号: G01J3/12 G01N21/64 G01N27/447

    摘要: An apparatus is disclosed to optically determine which of four fluorophores is attached to a band of DNA molecules on an electrophoresis gel. The apparatus includes four separate band pass interference filters and four wedge prisms to create four discrete areas of light on a detector. Digital comparison of the relative intensity of light sensed in the four discrete areas determines the identity of the excited fluorophore.

    摘要翻译: 公开了一种用于光学确定四个荧光团中的哪一个附着到电泳凝胶上的DNA分子带上的装置。 该装置包括四个单独的带通干涉滤光器和四个楔形棱镜,以在检测器上产生四个离散的光区域。 在四个离散区域中感测的光的相对强度的数字比较确定激发的荧光团的身份。

    Dial pulse detection method and apparatus
    9.
    发明授权
    Dial pulse detection method and apparatus 失效
    拨号脉冲检测方法和装置

    公开(公告)号:US3935392A

    公开(公告)日:1976-01-27

    申请号:US434013

    申请日:1974-01-17

    IPC分类号: H04Q1/32 H04Q1/36

    CPC分类号: H04Q1/32

    摘要: Apparatus and method for detecting the occurrence of a dial pulse signal in a telephone circuit. Transient signals within the frequency range of possible dial pulse signals are detected, and the amplitude of the detected signals are compared with a predetermined amplitude level. A first time period and a second time period are initiated in response to a first detected signal which exceeds a certain initial reference amplitude, with the duration of the first time period being less than the interval between the two consecutive transient pulse signals to be expected of a true dial pulse signal. The duration of the second time period is substantially equal to the period of a true dial pulse signal. A received signal resembling a dial pulse signal is detected during the first period only if the amplitude of such signal exceeds a second reference amplitude which is greater than the initial reference amplitude. A second apparent dial pulse transient signal condition, occurring after the termination of the first time period but before the termination of the second time period, is interpreted as the occurrence of a true dial pulse signal, in response to which a corresponding dial pulse output signal is produced. A second apparent dial pulse transient signal condition occurring in the first time period, however, merely extends the duration of the first time period and provides no dial pulse output signal. An amplitude comparison circuit automatically adjusts the reference amplitude in response to the signal level of the circuit providing input signals to the apparatus.

    摘要翻译: 用于检测电话电路中拨号脉冲信号的发生的装置和方法。 检测可能的拨号脉冲信号的频率范围内的瞬态信号,并将检测到的信号的幅度与预定的振幅电平进行比较。 响应于超过某一初始参考幅度的第一检测信号开始第一时间段和第二时间段,其中第一时间段的持续时间小于预期的两个连续瞬态脉冲信号之间的间隔 真正的拨号脉冲信号。 第二时间段的持续时间基本上等于真实拨号脉冲信号的周期。 只有当这种信号的幅度超过大于初始参考幅度的第二参考幅度时,才在第一周期期间检测到类似于拨号脉冲信号的接收信号。 在第一时间段结束之后但在第二时间段结束之前发生的第二表观拨号脉冲瞬态信号条件被解释为真实拨号脉冲信号的发生,响应于此,对应的拨号脉冲输出信号 生产。 然而,在第一时间段中发生的第二表观拨号脉冲瞬态信号条件仅延长了第一时间段的持续时间并且不提供拨号脉冲输出信号。 振幅比较电路响应于向设备提供输入信号的电路的信号电平自动调整参考幅度。