Transient decay amperometry
    1.
    发明授权
    Transient decay amperometry 有权
    瞬态衰变电流分析法

    公开(公告)号:US08470604B2

    公开(公告)日:2013-06-25

    申请号:US13210738

    申请日:2011-08-16

    IPC分类号: G01N27/333 G01N33/66

    摘要: A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a transient decay, where the output signal is not inversely proportional to the square root of the time. The transient decay is greater or less than the −0.5 decay constant of a Cottrell decay. The transient decay may result from a relatively short incubation period, relatively small sample reservoir volumes, relatively small distances between electrode surfaces and the lid of the sensor strip, and/or relatively short excitations in relation to the average initial thickness of the reagent layer. The biosensor system determines the analyte concentration from the output signal having a transient decay.

    摘要翻译: 生物传感器系统使用没有Cottrell衰变的电化学过程来确定生物样品的分析物浓度。 生物传感器系统产生具有瞬时衰减的输出信号,其中输出信号不与时间的平方根成反比。 瞬态衰减大于或小于Cottrell衰变的-0.5衰减常数。 瞬时衰减可能由相对较短的潜伏期,相对小的样品储存容量,电极表面与传感器条的盖之间的相对小的距离和/或相对于试剂层的平均初始厚度的相对短的激发而产生。 生物传感器系统从具有瞬时衰减的输出信号确定分析物浓度。

    Reagent Composition and Methods of Using and Forming the Same
    2.
    发明申请
    Reagent Composition and Methods of Using and Forming the Same 有权
    试剂组合物及其使用和形成方法

    公开(公告)号:US20080199937A1

    公开(公告)日:2008-08-21

    申请号:US11885237

    申请日:2006-03-03

    IPC分类号: C12N9/24 C12M1/34

    摘要: A reagent composition containing GDH-PQQ as an enzyme-co-factor and screen-printed on working and counter electrodes of electrochemical biosensors, maintains activity of the enzyme reagents by proper selection of components. A preferred composition includes hydrophilic polymers, amorphous untreated silica, buffers, surfactants, and a mediator For example, the biosensor is useful in the amperometric determination of glucose.

    摘要翻译: 包含GDH-PQQ作为酶辅因子并丝网印刷在电化学生物传感器的工作和对电极上的试剂组合物通过适当选择组分保持酶试剂的活性。 优选的组合物包括亲水性聚合物,无定形未处理二氧化硅,缓冲液,表面活性剂和介体。例如,生物传感器可用于葡萄糖的电流测定。

    Reagent composition for electrochemical biosensors
    4.
    发明授权
    Reagent composition for electrochemical biosensors 有权
    用于电化学生物传感器的试剂组合物

    公开(公告)号:US08921065B2

    公开(公告)日:2014-12-30

    申请号:US11885237

    申请日:2006-03-03

    摘要: A reagent composition containing GDH-PQQ as an enzyme-co-factor and screen-printed on working and counter electrodes of electrochemical biosensors, maintains activity of the enzyme reagents by proper selection of components. A preferred composition includes hydrophilic polymers, amorphous untreated silica, buffers, surfactants, and a mediator. For example, the biosensor is useful in the amperometric determination of glucose.

    摘要翻译: 包含GDH-PQQ作为酶辅因子并丝网印刷在电化学生物传感器的工作和对电极上的试剂组合物通过适当选择组分保持酶试剂的活性。 优选的组合物包括亲水性聚合物,无定形未处理二氧化硅,缓冲剂,表面活性剂和介体。 例如,生物传感器可用于葡萄糖的电流分析测定。

    Test Sensor Reagent Having Cellulose Polymers
    5.
    发明申请
    Test Sensor Reagent Having Cellulose Polymers 有权
    具有纤维素聚合物的测试传感器试剂

    公开(公告)号:US20090152128A1

    公开(公告)日:2009-06-18

    申请号:US12083952

    申请日:2006-11-13

    IPC分类号: G01N33/50 G01N33/52

    CPC分类号: C12Q1/26 C12Q1/006

    摘要: A test sensor reagent for measuring the concentration of analytes in body fluids includes cellulose polymers for improving the stability of the test sensor and reducing the total assay time. The test sensor reagent also includes an enzyme, an electron transfer mediator and a rheological additive.

    摘要翻译: 用于测量体液中分析物浓度的测试传感器试剂包括用于改善测试传感器的稳定性并减少总测定时间的纤维素聚合物。 测试传感器试剂还包括酶,电子转移介体和流变添加剂。

    Use of CO.sub.2 absorbant for stabilization of dried alkaline reagent in
creatinine assay
    8.
    发明授权
    Use of CO.sub.2 absorbant for stabilization of dried alkaline reagent in creatinine assay 失效
    在肌酐测定中使用CO2吸收剂来稳定干燥的碱性试剂

    公开(公告)号:US5610073A

    公开(公告)日:1997-03-11

    申请号:US534267

    申请日:1995-09-26

    摘要: Disclosed is an improvement to the method for the detection of creatinine in which creatinine, in aqueous solution, is contacted with a dry reagent system of an indicator for creatinine. The assay is carried out at a pH above about 11.5 which is maintained by an alkaline material. The improvement involves packaging the reagent system with a material capable of absorbing CO.sub.2 and at least some ambient water vapor. This inhibits the formation of carbonic acid thereby reducing the neutralization of the alkaline reagent system during storage to increase the shelf life and decrease the variability of the system.

    摘要翻译: 公开了对肌酸酐检测方法的改进,其中肌酸酐在水溶液中与肌酸酐指示剂的干试剂体系接触。 该测定在高于约11.5的pH下进行,其由碱性材料维持。 该改进涉及用能够吸收CO 2和至少一些环境水蒸汽的材料包装试剂系统。 这抑制了碳酸的形成,从而减少了储存期间碱性试剂体系的中和,从而提高了保质期并降低了系统的变异性。

    Biosensor desiccant system having enhanced measurement performance
    10.
    发明授权
    Biosensor desiccant system having enhanced measurement performance 有权
    具有增强的测量性能的生物传感器干燥剂系统

    公开(公告)号:US09233788B2

    公开(公告)日:2016-01-12

    申请号:US13553203

    申请日:2012-07-19

    摘要: A biosensor system for determining the concentration of an analyte in a sample includes a plurality of test sensors, and includes a container including a desiccant and the plurality of test sensors, sealed in the container. When the container is stored for two weeks at a temperature of 50° C., and each test sensor is subsequently removed from the container, connected through the at least two conductors to a measurement device and then contacted with one of a plurality of samples including an analyte, where the plurality of samples has analyte concentrations that span the range of 50 mg/dL-600 mg/dL, and the analyte concentration in each sample is determined by the test sensor and the measuring device, the bias of each determined analyte concentration may be within ±10 mg/dL or ±10%, and the coefficient of variation of the determined analyte concentrations may be at most 2.5%.

    摘要翻译: 用于确定样品中分析物浓度的生物传感器系统包括多个测试传感器,并且包括密封在容器中的包括干燥剂和多个测试传感器的容器。 当容器在50℃的温度下储存两周时,并且随后将每个测试传感器从容器中取出,通过至少两个导体连接到测量装置,然后与多个样品中的一个接触,包括 分析物,其中多个样品具有跨越50mg / dL-600mg / dL范围的分析物浓度,并且每个样品中的分析物浓度由测试传感器和测量装置确定,每个确定的分析物的偏差 浓度可能在±10 mg / dL或±10%以内,测定的分析物浓度的变异系数可以达到2.5%以下。