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    ELECTROCHEMICAL CELL
    1.
    发明申请
    ELECTROCHEMICAL CELL 失效
    电化学细胞

    公开(公告)号：US20120145539A1

    公开(公告)日：2012-06-14

    申请号：US13357318

    申请日：2012-01-24

    Applicant: Alastair McIndoe Hodges ,  Thomas William Beck ,  Oddvar Johansen

    Inventor： Alastair McIndoe Hodges ,  Thomas William Beck ,  Oddvar Johansen

    IPC: C25B9/00

    CPC classification number: G01N27/403 ,  C12Q1/004 ,  G01N27/3272 ,  G01N27/3273 ,  Y10T29/49117

    Abstract: Devices and methods are provided for determining the concentration of a reduced form of a redox species. For example, a device can include a working electrode and a counter electrode spaced by a predetermined distance so that reaction produces from the counter electrode arrive at the working electrode. An electric potential difference can be applied between the electrodes, and the potential of the working electrode can be selected such that the rate of electro-oxidation of the reduced form of the species is diffusion controlled. Current as a function of time can be determined, the magnitude of the steady state current can be estimated, and a value indicative of the diffusion coefficient and/or of the concentration of the reduced form of the species can be obtained from the change in current with time and the magnitude of the steady state current. Other embodiments of apparatuses, devices, and methods are also provided.

    Abstract translation: 提供了用于确定还原形式的氧化还原物质的浓度的装置和方法。 例如，器件可以包括隔开预定距离的工作电极和对电极，使得从反电极产生的反应到达工作电极。 可以在电极之间施加电位差，并且可以选择工作电极的电位，使得物种的还原形式的电氧化速率被扩散控制。 可以确定作为时间的函数的电流，可以估计稳态电流的大小，并且可以从电流的变化获得指示物种的还原形式的扩散系数和/或浓度的值 随着时间和稳态电流的大小。 还提供了装置，装置和方法的其他实施例。

    Electrochemical cell
    5.
    发明授权
    Electrochemical cell 有权
    电化学电池

    公开(公告)号：US08101056B2

    公开(公告)日：2012-01-24

    申请号：US12567433

    申请日：2009-09-25

    Applicant: Alastair McIndoe Hodges ,  Thomas William Beck ,  Oddvar Johansen

    Inventor： Alastair McIndoe Hodges ,  Thomas William Beck ,  Oddvar Johansen

    IPC: G01N27/403 ,  G01N27/327

    CPC classification number: G01N27/403 ,  C12Q1/004 ,  G01N27/3272 ,  G01N27/3273 ,  Y10T29/49117

    Abstract: A hollow electrochemical cell is provided. In one exemplary embodiment, a hollow electrochemical cell includes two sets of electrodes and an opening for admitting an analyte to the cell. At least one of the two sets of electrodes can be in fluid communication with the opening. Further, a first set of electrodes can include a working electrode spaced from a counter or counter/reference electrode by less than 500 μm one embodiment the working and counter or counter/reference electrodes are not co-planer. In another embodiment the working and counter or counter/reference electrodes are of substantially corresponding area. In yet another embodiment the working and counter or counter/reference electrodes are spaced from 100 to 200 μm apart. The first set of electrodes and the second set of electrodes can be spaced apart by greater than about 500 μm. Other embodiments of a hollow electrochemical cell are also provided, as are several embodiments of a glucose sensor.

    Abstract translation: 提供了一种中空的电化学电池。 在一个示例性实施例中，中空电化学电池包括两组电极和用于允许分析物进入细胞的开口。 两组电极中的至少一个可以与开口流体连通。 此外，第一组电极可以包括与计数器或对准/参考电极间隔小于500μm的工作电极。 在一个实施例中，工作和计数器或计数器/参考电极不是共平面的。 在另一个实施例中，工作和计数器或计数器/参考电极具有基本对应的区域。 在又一个实施例中，工作和计数器或对准/参考电极间隔开100至200微米。 第一组电极和第二组电极可间隔开大于约500μm。 还提供了中空电化学电池的其它实施方案，葡萄糖传感器的几个实施方案也是如此。

    Electrochemical cell
    7.
    发明申请
    Electrochemical cell 审中-公开
    电化学电池

    公开(公告)号：US20060254932A1

    公开(公告)日：2006-11-16

    申请号：US11487728

    申请日：2006-07-17

    Applicant: Alastair Hodges ,  Thomas Beck ,  Oddvar Johansen ,  Ian Maxwell

    Inventor： Alastair Hodges ,  Thomas Beck ,  Oddvar Johansen ,  Ian Maxwell

    IPC: G01N27/26 ,  G01N33/487

    CPC classification number: C12Q1/004 ,  C12Q1/006 ,  G01N27/3272

    Abstract: A biosensor for use in determining a concentration of a component in an aqueous liquid sample is provided including: an electrochemical cell having a first electrically resistive substrate having a thin layer of electrically conductive material, a second electrically resistive substrate having a thin layer of electrically conductive material, the substrates being disposed with the electrically conductive materials facing each other and being separated by a sheet including an aperture, the wall of which aperture defines a cell wall and a sample introduction aperture whereby the aqueous liquid sample may be introduced into the cell; and a measuring circuit.

    Abstract translation: 提供了一种用于确定含水液体样品中组分浓度的生物传感器，包括：电化学电池，具有具有导电材料薄层的第一电阻衬底，具有导电薄层的第二电阻衬底 材料，所述基板被布置成导电材料相互面对并由包括孔的片分隔开，所述片的壁的孔限定细胞壁和样品引入孔，由此可将水性液体样品引入细胞中; 和测量电路。

    Modified catalysts and process for the solar reduction of water
    9.
    发明授权
    Modified catalysts and process for the solar reduction of water 失效
    用于太阳能还原水的改性催化剂和方法

    公开(公告)号：US4606798A

    公开(公告)日：1986-08-19

    申请号：US725521

    申请日：1985-04-23

    Applicant: Wolfgang H. F. Sasse ,  Oddvar Johansen ,  Albert W. Mau ,  Jean D. Swift

    Inventor： Wolfgang H. F. Sasse ,  Oddvar Johansen ,  Albert W. Mau ,  Jean D. Swift

    IPC: B01J19/12 ,  C01B3/04

    CPC classification number: B01J19/127 ,  C01B3/042 ,  Y02E60/364

    Abstract: A solar reaction system which produces hydrogen by reduction of hydronium ions using methylviologen or a related compound as an electron-transfer agent and a platinum electron-transfer catalyst, wherein the catalyst is modified with a water-soluble divalent sulphur compound, or a sulphur compound in which the sulphur is reducible to the divalent state, in an amount sufficient to inhibit hydrogenation side-reactions during the solar reduction process but not sufficient to significantly suppress the reduction of hydronium ion to hydrogen by the electron-transfer agent.

    Abstract translation: 一种通过使用甲基荧光素或相关化合物作为电子转移剂还原水合氢离子产生氢的太阳能反应系统和铂电子转移催化剂，其中催化剂用水溶性二价硫化合物或硫化合物 其中硫可还原成二价状态，其量足以抑制太阳能还原过程中的氢化副反应，但不足以显着抑制电子转移剂将氢离子水离子还原成氢。

    Electrochemical cell
    10.
    发明授权
    Electrochemical cell 有权
    电化学电池

    公开(公告)号：US08075760B2

    公开(公告)日：2011-12-13

    申请号：US12560773

    申请日：2009-09-16

    Applicant: Alastair McIndoe Hodges ,  Thomas William Beck ,  Oddvar Johansen

    Inventor： Alastair McIndoe Hodges ,  Thomas William Beck ,  Oddvar Johansen

    IPC: G01N27/327

    CPC classification number: G01N27/403 ,  C12Q1/004 ,  G01N27/3272 ,  G01N27/3273 ,  Y10T29/49117

    Abstract: A method for determining the concentration of a reduced or oxidized form of a redox species is provided. In one exemplary embodiment, an electrochemical apparatus is provided in which the apparatus includes a hollow electrochemical cell for measuring a concentration of glucose in a blood sample, a current of the cell is measured, and a concentration of a redox mediator is determined, at least in part from, a measured current of the cell. The hollow electrochemical cell can include at least one non-metal working electrode, at least one counter electrode or counter/reference electrode, and a spacer interposed between the working electrode and the counter or counter/reference electrode. In one embodiment the working electrode and the counter or counter/reference electrode are not co-planer and are separated by a distance of from about 20 microns to about 200 microns. In another embodiment the working electrode and the counter or counter/reference electrode are not co-planer and the cell has an effective cell volume of less than 1.5 microliters.

    Abstract translation: 提供了确定还原或氧化形式的氧化还原物质的浓度的方法。 在一个示例性实施例中，提供了一种电化学装置，其中所述装置包括用于测量血液样品中葡萄糖浓度的中空电化学电池，测量电池的电流，并且至少确定氧化还原介体的浓度 部分来自电池的测量电流。 中空电化学电池可以包括至少一个非金属工作电极，至少一个对电极或对置/参考电极，以及插入在工作电极和计数器或反/参比电极之间的间隔物。 在一个实施例中，工作电极和计数器或对位/参比电极不是共平面的并且分开约20微米至约200微米的距离。 在另一个实施例中，工作电极和计数器或对准/参比电极不是共平面的，并且电池具有小于1.5微升的有效电池容积。

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