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    • 2. 发明授权
    • Method of measuring chemical concentration based on spatial separation and resolution of luminescence
    • 基于空间分离和发光分辨率测量化学浓度的方法
    • US06501549B1
    • 2002-12-31
    • US09077694
    • 1998-12-03
    • Joseph D. AndradeChung-Yih WangVladimir HladyPhilip M. TrioloRobert J. Scheer
    • Joseph D. AndradeChung-Yih WangVladimir HladyPhilip M. TrioloRobert J. Scheer
    • G01B1100
    • G01N21/763G01N21/6456G01N21/76
    • A method and associated apparatus for measuring chemical concentration in a liquid sample based on spatial separation and resolution of light is disclosed. The method is preferably applied to sensitive, quantitative, luminescence-based biosensors which reads the analyte concentration via spatial distribution of the emitted light. The detection of light is used to assess the spatial position, rather than the intensity or wavelength, of emitted light. A bioluminescent or chemiluminescent reaction requiring, for example, ATP, NADPH or NADH as a specific, and sensitive co-factor is used. ATP or NADH concentration is modulated, “tuned,” and/or regulated via, for example, an enzyme which consumes (“consumase”) ATP, NADPH, or NADH, thereby producing a spatial distribution of ATP or NADH and a spatial distribution in the emitted light. By appropriate control of the consumase or “synthase” activity and kinetics, a sensitive, specific, and easily readable luminescent pattern is produced, permitting detection.
    • 公开了一种基于空间分离和光分辨率来测量液体样品中化学浓度的方法和相关装置。 该方法优选地应用于通过发射光的空间分布读取分析物浓度的灵敏的,定量的,基于发光的生物传感器。 光的检测用于评估发射光的空间位置,而不是强度或波长。 使用需要例如ATP,NADPH或NADH作为特异性和敏感辅因子的生物发光或化学发光反应。 ATP或NADH浓度通过例如消耗(“消耗”)ATP,NADPH或NADH的酶“调节”和/或调节,由此产生ATP或NADH的空间分布和空间分布 发出的光。 通过适当控制消耗或“合成酶”活性和动力学,产生敏感,特异且容易读取的发光图案,允许检测。
    • 4. 发明授权
    • Process for conducting fluorescence immunoassays without added labels
and employing attenuated internal reflection
    • 用于进行荧光免疫测定而没有添加标记并使用衰减内反射的方法
    • US4368047A
    • 1983-01-11
    • US257838
    • 1981-04-27
    • Joseph D. AndradeRichard Van Wagenen
    • Joseph D. AndradeRichard Van Wagenen
    • G01N21/64G01N33/58G01N33/54G01N31/06
    • G01N33/582G01N33/58Y10S436/805Y10S436/815Y10S436/816Y10S436/817
    • A process is presented for conducting fluorescence immunoassays without the use of added labels by utilizing ultraviolet radiation and internal reflection optics to activate fluorescent groups present in the molecules of interest. The assay is accomplished by directing a beam of light having wavelengths in the ultraviolet region to a solid liquid interface which (1) has a material X immobilized thereon, and (2) is contacted with an assay solution containing in unknown Y which contains intrinsic tyrosine, tryptophan, nucleic acid or related fluorescence groups which are activated by wavelengths in the ultraviolet region; X and Y may be in the relationship of antibody and antigen in that one had the ability of recognizing the particular spatial and polar configuration of the other and is attracted to and bound to such configuration, said beam of ultraviolet light being projected under such conditions that there is internal reflection at the interface, and then measuring the amount of fluorescence emitted from the surface of the interface, the amount of the fluorescence emission being a function of the amount of the unknown Y being detected. In the event that Y is not fluorescent, the X-Y sandwich can be further exposed to a solution containing X, to form XYX sandwich. The observed fluorescence of X is proportional to the amount of bound Y which is in turn related to the solution concentration of Y.
    • 呈现用于进行荧光免疫测定的方法,而不使用通过利用紫外线辐射和内部反射光学器件来添加目标分子中的荧光基团的添加的标记物。 该测定通过将具有紫外线区域的波长的光束引导到固体液体界面来实现,该固体液体界面(1)具有固定在其上的材料X,和(2)与含有未知Y的测定溶液接触,所述测定溶液含有内在酪氨酸 ,色氨酸,核酸或由紫外线区域中的波长激活的相关荧光基团; X和Y可以是抗体和抗原的关系,因为它们具有识别另一个的特定空间和极性构型并被吸引并结合到这种构型的能力,所述紫外线束在以下条件下投射: 在界面处存在内部反射,然后测量从界面的表面发射的荧光量,荧光发射量是被检测的未知Y的量的函数。 在Y不是荧光的情况下,可以将X-Y三明治进一步暴露于含有X的溶液中以形成XYX三明治。 观察到的X的荧光与结合的Y的量成比例,这又与Y的溶液浓度有关。
    • 8. 发明授权
    • Method and apparatus for the regulation of complex binding
    • 用于调节复合物结合的方法和装置
    • US5135876A
    • 1992-08-04
    • US100935
    • 1987-09-24
    • Joseph D. AndradeJames Herron
    • Joseph D. AndradeJames Herron
    • G01N33/543
    • G01N33/54373Y10S436/805
    • A reusable biosensor is disclosed. A molecule containing a moiety of an antibody-antigen complex and photosensitive polymers are bonded to an optical conduit. When placed in a solution, the presence or absence of a second complementary moiety of an antibody-antigen complex can be determined by sensing whether or not the first moiety is complexed. The first moiety of an antibody-antigen complex can then be regenerated by transmitting light through the optical conduit which alters the structure of the photosensitive polymers to cause interference with said complex, thereby dissociating the second complementary moiety from the first moiety. The ability to regulate and control specific binding has applications can be useful in information storage devices, bioorganic electronic devices, and optical devices.
    • 公开了可重复使用的生物传感器。 含有抗体 - 抗原复合物部分和感光性聚合物的分子被结合到光导管上。 当置于溶液中时,抗体 - 抗原复合物的第二互补部分的存在或不存在可以通过检测第一部分是否复合来确定。 抗体 - 抗原复合物的第一部分然后可以通过透过光导管来再生,该光导管改变光敏聚合物的结构以引起与所述复合物的干扰,从而使第二互补部分与第一部分解离。 调节和控制特异性结合的能力可用于信息存储设备,生物有机电子设备和光学设备中。
    • 9. 发明授权
    • Molecular gas analysis by Raman scattering in intracavity laser
configuration
    • 通过拉曼散射在腔内激光配置中的分子气体分析
    • US4648714A
    • 1987-03-10
    • US774643
    • 1985-09-11
    • Robert E. BennerJoseph D. AndradeRichard A. Van WagenenDwayne R. Westenskow
    • Robert E. BennerJoseph D. AndradeRichard A. Van WagenenDwayne R. Westenskow
    • G01J3/12G01J3/44G01N21/39G01N21/65H01S3/108
    • H01S3/1086G01N21/65G01J2003/123G01J3/44G01N2021/391
    • The concentration of multiple polyatomic gases are determined almost simultaneously by Raman scattering. The gas sample is placed in a sampling cell located in the resonance cavity of a laser and a polarized laser beam having sufficient intensity to produce detectable signals of Raman scattered light is passed through the cell. The scattered light is captured and redirected by means of a reflection mirror located parallel to the axis of the laser beam adjacent to and outside of the cell. Signals of both inelastic Raman scattered light and elastic laser scattered light are collected by a collection lens means opposite the reflection mirror and outside the gas cell. The collection lens is also parallel to the axis of the laser beam. The collected scattered signals are directed onto a laser line rejection filter where the scattered elastic laser signals are filtered out and the inelastic Raman scattered signals are transmitted to come in contact with a rotating filter wheel containing a series of interference filters with each filter being specific to the transmission of one Raman line. The Raman lines passing through the rotating filters are sensed sequentially by a single detector means and amplified and converted into digital electrical pulses which are processed and converted into visual readouts indicative of the concentration of each of the polyatomic molecules in the gas being determined.
    • 多重多原子气体的浓度几乎同时由拉曼散射确定。 将气体样品放置在位于激光器的共振腔中的采样单元中,并且具有足够强度以产生可拉曼散射光的可检测信号的偏振激光束通过该单元。 散射光被平行于与电池相邻并且在电池外部的激光束的轴线平行的反射镜捕获并重定向。 无弹性拉曼散射光和弹性激光散射光的信号通过与反射镜相对的收集透镜装置和气室的外部收集。 收集透镜也平行于激光束的轴线。 收集的散射信号被引导到激光线抑制滤波器,其中散射的弹性激光信号被滤出,并且非弹性拉曼散射信号被传输以与包含一系列干涉滤光器的旋转滤光轮接触,每个滤光器特定于 一条拉曼线的传输。 通过旋转滤波器的拉曼线路被单个检测器装置依次检测,并被放大并转换成数字电脉冲,这些电脉冲被处理并转换成指示所确定的气体中每个多原子分子的浓度的视觉读数。