Three dimensional microelectrode system for dielectrophoresis
    2.
    发明授权
    Three dimensional microelectrode system for dielectrophoresis 有权
    用于介电电泳的三维微电极系统

    公开(公告)号:US08524064B2

    公开(公告)日:2013-09-03

    申请号:US12843269

    申请日:2010-07-26

    摘要: A dielectrophoresis apparatus for separating particles from a sample, including an apparatus body; a dielectrophoresis channel in the apparatus body, the dielectrophoresis channel having a central axis, a bottom, a top, a first side, and a second side; a first mesa projecting into the dielectrophoresis channel from the bottom and extending from the first side across the dielectrophoresis channel to the second side, the first mesa extending at an angle to the central axis of the dielectrophoresis channel; a first electrode extending along the first mesa; a second mesa projecting into the dielectrophoresis channel from the bottom and extending from the first side across the dielectrophoresis channel to the second side, the second mesa extending at an angle to the central axis of the dielectrophoresis channel; a space between at least one of the first electrode and the second side or the second electrode and the second side; and a gap between the first electrode and the second electrode.

    摘要翻译: 一种用于从样品中分离颗粒的介电电泳装置,包括装置体; 所述设备主体中的介电电泳通道,所述介电电泳通道具有中心轴线,底部,顶部,第一侧面和第二侧面; 第一台面从底部突出到介电电泳通道中并且从第一侧穿过介电电泳通道延伸到第二侧,第一台面以与介电电泳通道的中心轴线成一定角度延伸; 沿第一台面延伸的第一电极; 第二台面从底部突出到介电电泳通道中,并从第一侧穿过介电电泳通道延伸到第二侧,第二台面以与介电电泳通道的中心轴成一定角度延伸; 第一电极和第二电极和第二电极和第二侧中的至少一个之间的空间; 以及第一电极和第二电极之间的间隙。

    Synthesis of DNA
    4.
    发明授权
    Synthesis of DNA 失效
    DNA的合成

    公开(公告)号:US07452666B2

    公开(公告)日:2008-11-18

    申请号:US10394911

    申请日:2003-03-21

    IPC分类号: C12Q1/68 C07H21/04

    摘要: A method of synthesizing a desired double-stranded DNA of a predetermined length and of a predetermined sequence. Preselected sequence segments that will complete the desired double-stranded DNA are determined. Preselected segment sequences of DNA that will be used to complete the desired double-stranded DNA are provided. The preselected segment sequences of DNA are assembled to produce the desired double-stranded DNA.

    摘要翻译: 合成预定长度和预定序列的所需双链DNA的方法。 确定将完成所需双链DNA的预选序列片段。 提供将用于完成所需双链DNA的预选择的DNA序列。 组装DNA的预选区段序列以产生所需的双链DNA。

    Multi-stage separations based on dielectrophoresis
    7.
    发明授权
    Multi-stage separations based on dielectrophoresis 失效
    基于介电电泳的多级分离

    公开(公告)号:US06761811B2

    公开(公告)日:2004-07-13

    申请号:US09819108

    申请日:2001-03-27

    IPC分类号: G01N27447

    CPC分类号: B03C5/026

    摘要: A system utilizing multi-stage traps based on dielectrophoresis. Traps with electrodes arranged transverse to the flow and traps with electrodes arranged parallel to the flow with combinations of direct current and alternating voltage are used to trap, concentrate, separate, and/or purify target particles.

    摘要翻译: 基于介电电泳的多级阱的系统。 使用具有横向于流动的电极的陷阱和具有与直流电流和交流电压的组合平行布置的电极的陷阱,以捕获,浓缩,分离和/或净化靶颗粒。

    Sequential addition of short DNA oligos in DNA-polymerase-based synthesis reactions
    8.
    发明授权
    Sequential addition of short DNA oligos in DNA-polymerase-based synthesis reactions 有权
    在基于DNA聚合酶的合成反应中连续添加短DNA寡核苷酸

    公开(公告)号:US08470537B2

    公开(公告)日:2013-06-25

    申请号:US12959789

    申请日:2010-12-03

    IPC分类号: C12Q1/68 C12P19/34

    摘要: A method of preselecting a multiplicity of DNA sequence segments that will comprise the DNA molecule of user-defined sequence, separating the DNA sequence segments temporally, and combining the multiplicity of DNA sequence segments with at least one polymerase enzyme wherein the multiplicity of DNA sequence segments join to produce the DNA molecule of user-defined sequence. Sequence segments may be of length n, where n is an odd integer. In one embodiment the length of desired hybridizing overlap is specified by the user and the sequences and the protocol for combining them are guided by computational (bioinformatics) predictions. In one embodiment sequence segments are combined from multiple reading frames to span the same region of a sequence, so that multiple desired hybridizations may occur with different overlap lengths.

    摘要翻译: 预选选择将包含用户定义序列的DNA分子的多个DNA序列片段的方法,将DNA序列片段在时间上分离,并将多个DNA序列片段与至少一种聚合酶结合,其中多个DNA序列片段 加入生产用户定义序列的DNA分子。 序列段可以是长度为n,其中n是奇整数。 在一个实施例中,期望的杂交重叠的长度由用户指定,并且用于组合它们的序列和协议由计算(生物信息学)预测指导。 在一个实施例中,序列片段从多个读取框架组合以跨越序列的相同区域,使得可以以不同的重叠长度发生多个期望的杂交。

    Waveguide detection of right-angle-scattered light in flow cytometry
    9.
    发明授权
    Waveguide detection of right-angle-scattered light in flow cytometry 失效
    流式细胞术中直角散射光的波导检测

    公开(公告)号:US6154276A

    公开(公告)日:2000-11-28

    申请号:US27764

    申请日:1998-02-23

    IPC分类号: G01N15/14 G01N21/00

    CPC分类号: G01N15/1436

    摘要: A transparent flow cell is used as an index-guided optical waveguide. A detector for the flow cell but not the liquid stream detects the Right-Angle-Scattered (RAS) Light exiting from one end of the flow cell. The detector(s) could view the trapped RAS light from the flow cell either directly or through intermediate optical light guides. If the light exits one end of the flow cell, then the other end of the flow cell can be given a high-reflectivity coating to approximately double the amount of light collected. This system is more robust in its alignment than the traditional flow cytometry systems which use imaging optics, such as microscope objectives.

    摘要翻译: 使用透明流通池作为折射引导光波导。 用于流动池而不是液体流的检测器检测从流动池的一端排出的直角散射(RAS)光。 检测器可以直接或通过中间光学光导来观察来自流动池的被捕获的RAS光。 如果光离开流动池的一端,则流动池的另一端可以被给予高反射率涂层,使其收集的光量大约增加一倍。 该系统在比对比使用成像光学器件的传统流式细胞仪系统如显微镜目标更加坚固。

    Infrared-sensitive photocathode
    10.
    发明授权
    Infrared-sensitive photocathode 失效
    红外敏感光电阴极

    公开(公告)号:US5404026A

    公开(公告)日:1995-04-04

    申请号:US004766

    申请日:1993-01-14

    CPC分类号: H01J1/34 H01J2201/3423

    摘要: A single-crystal, multi-layer device incorporating an IR absorbing layer that is compositionally different from the Ga.sub.x Al.sub.1-x Sb layer which acts as the electron emitter. Many different IR absorbing layers can be envisioned for use in this embodiment, limited only by the ability to grow quality material on a chosen substrate. A non-exclusive list of possible IR absorbing layers would include GaSb, InAs and InAs/Ga.sub.w In.sub.y Al.sub.1-y-w Sb superlattices. The absorption of the IR photon excites an electron into the conduction band of the IR absorber. An externally applied electric field then transports electrons from the conduction band of the absorber into the conduction band of the Ga.sub.x Al.sub.1-x Sb, from which they are ejected into vacuum. Because the band alignments of Ga.sub.x Al.sub.1-x Sb can be made the same as that of GaAs, emitting efficiencies comparable to GaAs photocathodes are obtainable. The present invention provides a photocathode that is responsive to wavelengths within the range of 0.9 .mu.m to at least 10 .mu.m.

    摘要翻译: 结合了IR吸收层的单晶多层器件,该吸收层在组成上不同于充当电子发射体的GaxAl1-xSb层。 可以设想许多不同的IR吸收层用于该实施方案中,这仅限于在所选择的基底上生长优质材料的能力。 可能的IR吸收层的非排他性列表将包括GaSb,InAs和InAs / GawInyAl1-y-wSb超晶格。 IR光子的吸收激发电子进入IR吸收体的导带。 外部施加的电场然后将电子从吸收器的导带传输到GaxAl1-xSb的导带,从它们被喷射到真空中。 因为GaxAl1-xSb的带对准可以与GaAs相同,所以可获得与GaAs光电阴极相当的发射效率。 本发明提供一种响应波长在0.9μm至至少10μm之间的光电阴极。