Sensing Fluid Concentration for Continuous Glucose Monitoring
    2.
    发明申请
    Sensing Fluid Concentration for Continuous Glucose Monitoring 审中-公开
    感测液体浓度用于连续葡萄糖监测

    公开(公告)号:US20120172692A1

    公开(公告)日:2012-07-05

    申请号:US12985224

    申请日:2011-01-05

    IPC分类号: A61B5/1486

    摘要: An analyte monitor having a plurality of fluid paths, each fluid path having a distal opening adapted to be disposed on one side of a stratum corneum layer of a user's skin, a proximal opening adapted to be disposed on another side of the stratum corneum layer and an interior space extending between the distal and proximal openings; a sensing zone in fluid communication with the proximal openings of the fluid paths; sensing fluid extending from the sensing zone into substantially the entire interior space of the fluid paths; and an analyte sensor adapted to detect a concentration of analyte in the sensing fluid within the sensing zone, wherein at least one of the sensing fluid and the analyte sensor comprises a catalyst for mutarotation of glucose. The invention also includes a method of using the monitor.

    摘要翻译: 一种具有多个流体路径的分析物监测器,每个流体路径具有适于设置在使用者皮肤的角质层的一侧上的远端开口,适于设置在角质层的另一侧上的近侧开口,以及 在远端和近端开口之间延伸的内部空间; 与流体路径的近端开口流体连通的感测区域; 从所述感测区域延伸到所述流体路径的基本上整个内部空间中的感测流体; 以及分析物传感器,其适于检测所述感测区域内的所述感测流体中的分析物的浓度,其中所述感测流体和所述分析物传感器中的至少一个包括用于葡萄糖变异的催化剂。 本发明还包括使用监视器的方法。

    Polymers for separation of biomolecules by capillary electrophoresis

    公开(公告)号:US20060137982A1

    公开(公告)日:2006-06-29

    申请号:US11359713

    申请日:2006-02-21

    IPC分类号: B01D57/02

    CPC分类号: G01N27/44752 G01N27/44747

    摘要: The invention provides uncharged water-soluble silica-adsorbing polymers for suppressing electroendoosmotic flow and to reduce analyte-wall interactions in capillary electrophoresis. In one aspect of the invention, one or more of such polymers are employed as components of a separation medium for the separation of biomolecules, such as polynucleotides, polysaccharides, proteins, and the like, by capillary electrophoresis. Generally, such polymers are characterized by (i) water solubility over the temperature range between about 20° C. to about 50° C., (ii) concentration in a separation medium in the range between about 0.001% to about 10% (weight/volume), (iii) molecular weight in the range of about 5×103 to about 1×106 daltons, and (iv) absence of charged groups in an aqueous medium having pH in the range of about 6 to about 9. In one embodiment, polymers of the invention are selected from the group consisting of polylactams, such as polyvinylpyrrolidone; N,N-disubstituted polyacrylamides; and N-substituted polyacrylamides. In accordance with the method of the invention, a sufficient amount of polymer adsorbs to the capillary surface to establish a zone of high viscosity that shields the analyte from the wall and impedes the movement of an electrical double layer under an electric field.