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    • 3. 发明授权
    • Miniaturized solid-state reference electrode with self-diagnostic function
    • 具有自诊断功能的小型化固态参比电极
    • US06554982B1
    • 2003-04-29
    • US09889032
    • 2001-07-12
    • Jae Ho ShinSung Dong LeeHakhyun NamGeun Sig ChaByeong Woo Bae
    • Jae Ho ShinSung Dong LeeHakhyun NamGeun Sig ChaByeong Woo Bae
    • G01N27401
    • G01N27/301
    • The present invention relates to a reference electrode for a potentiometric electrode system, characterized in that the junction in contact with a sample solution is enlarged and an ion-sensitive membrane containing an ion selective material as a protective membrane for the inner reference solution is employed, which comprises a substrate; a metal layer; an insoluble metal salt layer; an insulating film for insulating the metal layer from an aqueous solution; a hydrogel serving as an inner reference solution; the junction on the hydrogel contacting with a sample solution; the ion-sensitive, protective membrane formed over all surface areas of the hydrogel, except for the junction, to separate the sample solution from the inner reference solution or act as an ion-sensing membrane upon the contamination of the junction, whereby the operational abnormality caused by junction contamination may be easily checked and fast activation may be achieved.
    • 本发明涉及一种用于电位电极系统的参考电极,其特征在于,与样品溶液接触的接合点被扩大,并且使用含有作为内部参比溶液的保护膜的离子选择性材料的离子敏感膜, 其包括基底; 金属层; 不溶性金属盐层; 用于将金属层与水溶液绝缘的绝缘膜; 作为内参照溶液的水凝胶; 水凝胶上的接头与样品溶液接触; 在水凝胶的所有表面区域之外形成的离子敏感的保护膜除了接合部分之外,以将样品溶液与内部参考溶液分离,或者当接合部被污染时用作离子感测膜,由此操作异常 可以容易地检查结点污染引起的并且可以实现快速激活。
    • 8. 发明授权
    • Microchip-based carbon dioxide gas sensor
    • 基于Microchip的二氧化碳气体传感器
    • US06746583B2
    • 2004-06-08
    • US09877857
    • 2001-06-08
    • Jae Seon LeeJae Ho ShinMin Hyung LeeHakhyun NamGeun Sig Cha
    • Jae Seon LeeJae Ho ShinMin Hyung LeeHakhyun NamGeun Sig Cha
    • G01N27327
    • G01N27/333G01N27/4162G01N33/004
    • There is provided a microchip-based differential-type carbon dioxide gas sensor for detecting dissolved carbon dioxide levels. It functions with at least one working electrode composed of an unbuffered hydrogel membrane containing a certain amount of sodium bicarbonate and a pH-sensitive gas-permeable membrane; and a reference electrode composed of a buffered hydrogel membrane and a pH-sensitive gas-permeable membrane. The unbuffered hydrogel membrane contains carbonic anhydrase, which reduces the time period for the hydration of carbon dioxide, thereby allowing the quick measurement of the level of carbon dioxide. In addition to being significantly improved in stabilization, sensing, and recovering time periods, the differential-type carbon dioxide gas sensor can be fabricated in small sizes and quickly measure levels of carbon dioxide dissolved in sample solution.
    • 提供了一种用于检测溶解二氧化碳水平的基于微芯片的差分式二氧化碳气体传感器。 它与至少一个由含有一定量碳酸氢钠和pH敏感性透气膜的无缓冲水凝胶膜组成的工作电极起作用; 以及由缓冲水凝胶膜和pH敏感性透气膜构成的参比电极。 无缓冲水凝胶膜含有碳酸酐酶,减少了二氧化碳水化的时间,从而可以快速测定二氧化碳的含量。 除了稳定化,感测和恢复时间段的显着改进之外,差分型二氧化碳气体传感器可以制造成小尺寸并且快速测量溶解在样品溶液中的二氧化碳的水平。
    • 9. 发明授权
    • Method for fabricating biosensors using hydrophilic polyurethane
    • 使用亲水性聚氨酯制造生物传感器的方法
    • US06509148B2
    • 2003-01-21
    • US09485513
    • 2000-02-10
    • Geun Sig ChaHakhyun NamJae Ho Shin
    • Geun Sig ChaHakhyun NamJae Ho Shin
    • C12Q100
    • C12Q1/002
    • Disclosed is a method for fabricating biosensors, using hydrophilic polyurethane. Bio-active reagents, including enzymes, antibodies, antigens, cells and receptors, are mixed with hydrophilic polyurethane and the mixture is directly coated over a signal transducer to form a sensing film which serves as a signal detector. The method using hydrophilic polyurethane allows the simplification of the fabrication of biosensors without conducting complicated chemical reactions and washing steps, such as crosslinking. The bio-active reagent entrapped within the hydrophilic polyurethane film can retains its high activity for an extended period of time and the intrinsic potentiometric response of the underlying ion-selective polymeric membrane is not affected by the bio-active reagent immobilized polyurethane film coated on its sensing surface. Therefore, the biosensors are superior in specificity, selectivity, and stability. Also, the adoption of solid-state type electrodes by virtue of the direct immobilization of the bio-active reagents allows the biosensors to be miniaturized, offering the advantages of the detection of small quantities of samples and mass production for low cost.
    • 公开了使用亲水性聚氨酯制造生物传感器的方法。 将生物活性试剂(包括酶,抗体,抗原,细胞和受体)与亲水性聚氨酯混合,并将混合物直接涂覆在信号传感器上以形成用作信号检测器的感测膜。 使用亲水性聚氨酯的方法允许简化生物传感器的制造,而不进行复杂的化学反应和洗涤步骤,例如交联。 包埋在亲水性聚氨酯膜内的生物活性试剂可以在长时间内保持其高活性,并且潜在的离子选择性聚合物膜的固有电位响应不受其上涂覆的生物活性试剂固定化聚氨酯膜的影响 传感表面。 因此,生物传感器的特异性,选择性和稳定性优异。 此外,通过生物活性试剂的直接固定,采用固态电极使得生物传​​感器小型化,提供少量样品的检测和低成本的批量生产的优点。
    • 10. 发明授权
    • Electrochemical biosensor measuring system
    • 电化学生物传感器测量系统
    • US08377272B2
    • 2013-02-19
    • US12529008
    • 2008-02-26
    • Keun Ki KimMoon Hwan KimJae Hyun YooGang CuiHakhyun NamGeun Sig Cha
    • Keun Ki KimMoon Hwan KimJae Hyun YooGang CuiHakhyun NamGeun Sig Cha
    • G01N27/327
    • A61B5/1486A61B5/14532G01N33/48771G01N2035/00851
    • Disclosed is an electrochemical biosensor measuring device which can be used together with an electrochemical biosensor. The biosensor measuring device comprises an electrical connection portion which is electrically connected with the electrodes of the biosensor upon the insertion of the biosensor there into, and a connector having a structure in which at least one light absorption or reflection path sequentially comprising a light emitter-production lot information identification portion-detector unit is provided to identify the production lot information recorded in the biosensor. The electrochemical biosensor measuring device can automatically identify the production lot information of the biosensor, encoded in the form of a hue or hole marks, upon the insertion of the electrochemical biosensor into the measuring device, thereby obviating the need to manually input the production lot information of the biosensor. Thus, inconvenience and the frequency of errors, which occur when a user personally inputs the production lot information, can be reduced, with the result that the measured values can be conveniently and accurately acquired.
    • 公开了一种可与电化学生物传感器一起使用的电化学生物传感器测量装置。 生物传感器测量装置包括电连接部分,其在将生物传感器插入其中时与生物传感器的电极电连接;以及连接器,具有其中至少一个光吸收或反射路径顺序地包括发光 - 提供生产批次信息识别部分检测器单元以识别记录在生物传感器中的生产批次信息。 当将电化学生物传感器插入到测量装置中时,电化学生物传感器测量装置可以自动识别以色调或孔痕形式编码的生物传感器的生产批量信息,从而避免需要手动输入生产批次信息 的生物传感器。 因此,可以减少当用户亲自输入生产批量信息时发生的不便和错误频率,结果可以方便和准确地获取测量值。