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    • 4. 发明授权
    • Film-coated sensor
    • 薄膜传感器
    • US5186808A
    • 1993-02-16
    • US548931
    • 1990-07-27
    • Shuichiro YamaguchiNaoto UchidaSatoru KasaiTakeshi ShimomuraNoboru Oyama
    • Shuichiro YamaguchiNaoto UchidaSatoru KasaiTakeshi ShimomuraNoboru Oyama
    • G01N27/333A61B5/145A61B5/1473A61B5/15G01N27/30G01N27/327
    • A61B5/14542A61B5/14865A61B2562/02
    • A film-coated sensor is formed by providing an electrically conductive substrate (2), which has a sectional area of less than 10.sup.-5 cm.sup.2, connected to a lead wire (5) at one end of an insulative capillary (1) and inscribed in the capillary (1), and providing a coating film (7) at another end, which is open, of the capillary (1) by an electrolytic polymerization process.The film-coated sensor obtained has a surface which is uniform, the film coating is easy to control, and since the sensor is not readily susceptible to flow of a specimen fluid, there is little drift and response is quick. Owing to its small size, the sensor is capable of measuring very small samples and of performing measurement upon being directly inserted into a living body or tissue.The sensor can be used also as an enzyme sensor by coating the surface of the film-coated sensor with a fixing enzyme film.
    • PCT No.PCT / JP89 / 00085 Sec。 371日期1990年7月27日第 102(e)1990年7月27日PCT PCT 1989年1月27日PCT公布。 公开号WO89 / 07262 日本1989年8月10日。薄膜涂层传感器是通过提供导电基片(2)形成的,导电基片(2)的截面积小于10-5厘米2,与导线(5)的一端连接 绝缘毛细管(1)并内接在毛细管(1)中,并通过电解聚合过程在毛细管(1)的开口的另一端提供涂膜(7)。 获得的涂膜传感器具有均匀的表面,膜涂层易于控制,并且由于传感器不容易受到样品流体的流动,因此几乎没有漂移和响应快。 由于传感器尺寸小,所以传感器能够测量非常小的样品,并且直接插入生物体或组织中进行测量。 传感器也可以通过用固定酶膜涂覆薄膜传感器的表面作为酶传感器。
    • 7. 发明授权
    • Enzyme sensor and method of manufacturing the same
    • 酶传感器及其制造方法
    • US5205920A
    • 1993-04-27
    • US487372
    • 1990-03-02
    • Noboru OyamaTakeshi ShimomuraShuichiro Yamaguchi
    • Noboru OyamaTakeshi ShimomuraShuichiro Yamaguchi
    • C12Q1/00
    • C12Q1/004
    • An enzyme sensor is disclosed, which has a two-layer fixed film structure consisting of a reduction function layer including an electron movement medium and di-valent iron ions and an enzyme-fixed layer covering said reduction function layer, and in which hydrogen peroxide generated through decomposition of glucose or the like in the enzyme-fixed layer is reduced by electron movement medium and di-valent iron ions in the reduction function layer.Thus, the construction of enzyme sensor is simplified, measurement is extremely facilitated, and the measurement time is reduced.As a different principle of enzyme sensor, an electrically conductive substrate of conductive carbon or the like is covered with an oxygen-reducing catalytic function layer and enzyme layer.Thus, there is no problem of contamination of enzyme sensor, and it is possible to readily manufacture and miniaturize enzyme sensors.
    • 公开了一种酶传感器,其具有由包括电子移动介质和二价铁离子的还原功能层和覆盖所述还原功能层的酶固定层组成的两层固定膜结构,其中产生过氧化氢 通过酶固定层中的葡萄糖等的分解,还原功能层中的电子移动介质和二价铁离子被还原。 因此,酶传感器的结构简单化,极大的方便了测量,测量时间缩短。 作为酶传感器的不同原理,导电性碳等的导电性基材被氧还原性催化剂层和酶层覆盖。 因此,酶传感器没有污染的问题,可以容易地制造和微型化酶传感器。