Method and system for precise dispensation of a liquid
    34.
    发明授权
    Method and system for precise dispensation of a liquid 有权
    精确分配液体的方法和系统

    公开(公告)号:US07258253B2

    公开(公告)日:2007-08-21

    申请号:US10837221

    申请日:2004-04-30

    IPC分类号: B67D5/08

    摘要: Devices, systems, and methods for the precise dispensation of small volumes of liquids are presented. A fluid microdispenser comprises a liquid-filled tube, an actuator coupled to the tube, and a tip at one end of the tube. When the actuator applies an actuation pressure, a precise volume of liquid is ejected from the orifice of the tip. The orifice is manufactured to control the volume of liquid ejected by each actuation and, therefore, may have a diameter smaller than that of the liquid-filled tube. The invention comprises systems, methods, and devices so that the inner diameter of the liquid-filled tube is decreased (tapered) to that of the orifice so as to maximize transmission to the orifice of the pressure generated by the actuation stimulus. This enables the volume of liquid ejected by each stimulus to be reproducibly controlled by the amplitude of the actuation stimulus.

    摘要翻译: 提出了用于精确分配少量液体的装置,系统和方法。 流体微分配器包括充满液体的管,耦合到管的致动器和管的一端的尖端。 当致动器施加致动压力时,精确体积的液体从尖端的孔喷出。 制造孔口以控制由每次致动喷射的液体的体积,因此可以具有比液体填充管的直径更小的直径。 本发明包括系统,方法和装置,使得充满液体的管的内径减小(锥形)到孔口的内径,从而最大程度地使通过致动刺激产生的压力对孔的传递。 这使得可以通过致动刺激的振幅可再现地控制由每个刺激喷射的液体的体积。

    Low fluorescence assay platforms and related methods for drug discovery
    36.
    发明授权
    Low fluorescence assay platforms and related methods for drug discovery 有权
    低荧光测定平台及药物发现的相关方法

    公开(公告)号:US06517781B1

    公开(公告)日:2003-02-11

    申请号:US09476959

    申请日:2000-01-03

    IPC分类号: B01L300

    摘要: One aspect of the present invention is a multi-well platform for fluorescence measurements, comprising a plurality of wells within a frame, wherein the multi-well platform has low fluorescence background. Another aspect of the present invention is a system for spectroscopic measurements, comprising reagents for an assay and a multi-well platform for fluorescence measurements. A further aspect of the present invention is a method for detecting the presence of an analyte in a sample contained in a multi-well platform by detecting light emitted from the sample. Another aspect of the present invention is a method from identifying a modulator of a biological process or target in a sample contained in a multi-well platform by detecting light emitted from the sample. Another aspect of the present invention is a composition identified by this method. A further aspect of the present invention is a method to identify a therapeutic. A further aspect of the present invention is a method of testing a therapeutic for therapeutic activity and toxicology by identifying a therapeutic using a method of the present invention and monitoring the toxicology and efficacy of the therapeutic in an in vivo model.

    摘要翻译: 本发明的一个方面是用于荧光测量的多孔平台,其包括框架内的多个孔,其中所述多孔平台具有低荧光背景。 本发明的另一方面是用于光谱测量的系统,其包括用于测定的试剂和用于荧光测量的多孔平台。 本发明的另一方面是通过检测从样品发射的光来检测多孔平台中包含的样品中分析物的存在的方法。 本发明的另一方面是通过检测从样品发射的光来识别多孔平台中包含的样品中生物过程或靶的调节剂的方法。 本发明的另一方面是通过该方法鉴定的组合物。 本发明的另一方面是鉴定治疗剂的方法。 本发明的另一方面是通过使用本发明的方法鉴定治疗剂并监测治疗剂在体内模型中的毒理学和功效来测试治疗活性和毒理学治疗剂的方法。

    On-line process flow and reaction monitor
    40.
    发明授权
    On-line process flow and reaction monitor 失效
    在线工艺流程和反应监测

    公开(公告)号:US5447692A

    公开(公告)日:1995-09-05

    申请号:US337311

    申请日:1994-11-10

    摘要: The present invention makes use of a single detector to monitor several process functions, e.g. reaction efficiency, reagent flow rates, the presence of empty reagent reservoirs, the absence of a chemical reactor column in the system, blockage of flow system, etc., at a single location in the flow system. In accordance with the detection scheme of the present invention, only one detector is required to accomplish the same, if not more, functions as many detectors in the prior art instruments. In the described embodiment, an optical detector is positioned downstream of a chemical reaction chamber. This detector monitors the effluent from the reaction chamber to monitor the reaction efficiency. It also monitors the system functions upstream of the reaction chamber. System flow rate is monitored by detecting the presence of a gas bubble which has been introduced into the system at a known instance. Depletion of reagents in the reservoirs can be detected by monitoring the absence of the reagents at the detector at times when the reagents are expected. The flow system may be periodically diagnosed to check for flow blockage or missing flow component, by monitoring the flow past the detector which corresponds to a predetermined succession of reagents introduced into the system. Any deviation from a predictable succession of changes in the flow monitored by the detector indicates possible blockage of the flow delivery system or missing flow components.

    摘要翻译: 本发明利用单个检测器来监视多个过程功能,例如, 反应效率,试剂流量,空试剂储存器的存在,系统中没有化学反应器塔,堵塞流动系统等,在流动系统的单个位置。 根据本发明的检测方案,仅需要一个检测器来实现与现有技术的仪器相同的(如果不是更多的)功能的检测器。 在所描述的实施例中,光学检测器位于化学反应室的下游。 该检测器监测来自反应室的流出物以监测反应效率。 它还监控反应室上游的系统功能。 通过检测在已知情况下已经引入到系统中的气泡的存在来监测系统流量。 可以通过在预期的时候监测检测器处的​​试剂的不存在来检测储存器中试剂的消耗。 可以通过监测通过检测器的流量来对应于引入到系统中的预定的一系列试剂,周期性地诊断流量系统来检查流体阻塞或缺少流动成分。 由检测器监测的流量的可预测连续变化的任何偏差表明流量输送系统或缺少流动分量的可能的阻塞。