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    • 5. 发明申请
    • METHOD AND APPARATUS FOR CHEMICAL ANALYSIS OF FLUIDS
    • 流体化学分析方法与装置
    • WO2009031088A1
    • 2009-03-12
    • PCT/IB2008/053503
    • 2008-08-29
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.ALBU, Lucian, R.ZOU, HansSHIMIZU, Jeff
    • ALBU, Lucian, R.ZOU, HansSHIMIZU, Jeff
    • G01N27/02G01N27/416
    • G01N27/27
    • An apparatus and method for electrochemical fluid analysis comprises a chamber (1202) having a depth dimension for accommodating a volume of a fluid under test, first and second electrodes (A1) disposed within the chamber and extending along the depth dimension in spaced relation with each other, and a soluble solid, such as an annealed polymer, e.g. EUDRAGIT occupying a lateral gap between the first and second electrodes. The rate of dissolution as monitored by electrochemical impedance spectroscopy (EIS) of the soluble solid within the fluid depends on the chemical concentration of a corresponding analyte present in solution in the fluid. In one embodiment a silicon-based integrated circuit device defining an upper margin includes an array of electrodes disposed along said upper margin to permit direct exposure of the electrode array to the fluid under test. The device is constructed using CMOS technology.
    • 用于电化学流体分析的装置和方法包括具有用于容纳待测流体体积的深度尺寸的腔室(1202),设置在腔室内的第一和第二电极(A1),并且沿着与每个腔室间隔开的深度尺寸延伸 另一种和可溶性固体,例如退火的聚合物,例如 EUDRAGIT占据第一和第二电极之间的横向间隙。 通过流体中可溶性固体的电化学阻抗谱(EIS)监测的溶解速率取决于流体中溶液中存在的相应分析物的化学浓度。 在一个实施例中,限定上边缘的硅基集成电路器件包括沿着所述上边缘设置的电极阵列,以允许电极阵列直接暴露于待测流体。 该器件采用CMOS技术构建。
    • 6. 发明申请
    • SENSOR SYSTEM BASED ON COMPOUND WITH SOLUBILITY DEPENDING ON ANALYTE CONCENTRATION
    • 基于分析仪浓度敏感性的化合物传感器系统
    • WO2008135930A1
    • 2008-11-13
    • PCT/IB2008/051709
    • 2008-05-02
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.ZOU, HansALBU, Lucian RemusSHIMIZU, Jeff
    • ZOU, HansALBU, Lucian RemusSHIMIZU, Jeff
    • G01N33/50G01N33/84G01N33/543G01N27/414
    • G01N27/4145
    • A biochemical sensing device for measuring an analyte level, e.g., for in vivo applications. An exemplary device includes an electrode (12), a power supply (18) connected to the electrode, and a compound/polymer coating (14) on the electrode. The compound/polymer is soluble in a solution, and its rate of solubility is dependent on an analyte-related property of the solution, e.g., the solution pH. The biochemical sensing device can further include an electrical switch (16) in the connection between the power supply and the electrode. The biochemical sensing device can further include a data processor (22) connected to the power supply (18), and a data memory component (24) connected to the data processor. A process for measuring analyte-related property of a solution is also provided. The process includes providing an electrode coated with a compound/polymer, wherein the compound/polymer has an analyte- dependent solubility profile, exposing the compound/polymer coated electrode to the solution, measuring the conductance at the electrode as a function of time, and correlating the rate of conductance to the solubility of the compound/polymer to determine the pH of the solution.
    • 用于测量分析物水平的生物化学感测装置,例如用于体内应用。 示例性装置包括电极(12),连接到电极的电源(18)和电极上的化合物/聚合物涂层(14)。 化合物/聚合物可溶于溶液,其溶解度取决于溶液的分析物相关性质,例如溶液pH。 生物化学感测装置还可以包括在电源和电极之间的连接中的电开关(16)。 生物化学感测装置还可以包括连接到电源(18)的数据处理器(22)和连接到数据处理器的数据存储器组件(24)。 还提供了用于测量溶液的分析物相关性质的方法。 该方法包括提供涂覆有化合物/聚合物的电极,其中所述化合物/聚合物具有分析物依赖性溶解度分布,将化合物/聚合物涂覆的电极暴露于溶液,测量作为时间的函数的电极电导,以及 将电导率与化合物/聚合物的溶解度相关联以确定溶液的pH。