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    • 1. 发明授权
    • Optical substrate for enhanced detectability of fluorescence
    • 用于增强荧光检测性的光学基底
    • US6008892A
    • 1999-12-28
    • US864363
    • 1997-05-23
    • Robert C. KainEric G. MarasonRichard F. Johnston
    • Robert C. KainEric G. MarasonRichard F. Johnston
    • G01N21/01G01N21/64G01N1/00
    • G01N21/6456G01N21/6452G01N21/6428
    • A sample substrate for use in a fluorescence imaging system includes a rigid base with a specularly reflective surface, typically metal, on which is deposited a transparent coating layer. The coating layer has a thickness selected so that a particular fluorescence excitation wavelength, corresponding to a specified fluorescent constituent to be sought in sample material, has an optical path from the top of the coating layer to the reflecting surface in the base of substantially an odd multiple of one-quarter wavelength, so that the standing wave of the fluorescence excitation wavelength of light incident on the substrate has an antinode located at or near where sample material would be disposed on top of the coating layer. This maximizes fluorescence excitation of the sample on the reflective substrate. The transparent coating layer may be a dielectric material (e.g. silica) or may be a multilayer structure with a top layer of biologically active material for binding a specified sample constituent.
    • 用于荧光成像系统的样品衬底包括具有镜面反射表面(通常为金属)的刚性基底,其上沉积有透明涂层。 涂层具有选择的厚度,使得对应于在样品材料中寻找的特定荧光成分的特定荧光激发波长具有从涂层的顶部到基底中的反射表面的基本上奇数的光路 使得入射到基板上的光的荧光激发波长的驻波具有位于或附近的样品材料将设置在涂层顶部上的波腹。 这使得样品在反射基板上的荧光激发最大化。 透明涂层可以是介电材料(例如二氧化硅),也可以是具有用于结合特定样品成分的生物活性材料顶层的多层结构。
    • 2. 发明授权
    • Optical substrate for enhanced detectability of fluorescence
    • 用于增强荧光检测性的光学基底
    • US06177990B1
    • 2001-01-23
    • US09468750
    • 1999-12-21
    • Robert C. KainEric G. MarasonRichard F. Johnston
    • Robert C. KainEric G. MarasonRichard F. Johnston
    • G01N100
    • G01N21/6456G01N21/6428G01N21/6452
    • A sample substrate for use in a fluorescence imaging system includes a rigid base with a specularly reflective surface, typically metal, on which is deposited a transparent coating layer. The coating layer has a thickness selected so that a particular fluorescence excitation wavelength, corresponding to a specified fluorescent constituent to be sought in sample material, has an optical path from the top of the coating layer to the reflecting surface in the base of substantially an odd multiple of one-quarter wavelength, so that the standing wave of the fluorescence excitation wavelength of light incident on the substrate has an antinode located at or near where sample material would be disposed on top of the coating layer. This maximizes fluorescence excitation of the sample on the reflective substrate. The transparent coating layer may be a dielectric material (e.g. silica) or may be a multilayer structure with a top layer of biologically active material for binding a specified sample constituent.
    • 用于荧光成像系统的样品衬底包括具有镜面反射表面(通常为金属)的刚性基底,其上沉积有透明涂层。 涂层具有选择的厚度,使得对应于在样品材料中寻找的特定荧光成分的特定荧光激发波长具有从涂层的顶部到基底中的反射表面的基本上奇数的光路 使得入射到基板上的光的荧光激发波长的驻波具有位于或附近的样品材料将设置在涂层顶部上的波腹。 这使得样品在反射基板上的荧光激发最大化。 透明涂层可以是介电材料(例如二氧化硅),也可以是具有用于结合特定样品成分的生物活性材料顶层的多层结构。
    • 7. 发明授权
    • Apparatus for measuring spatial distribution of fluorescence on a
substrate
    • 用于测量衬底上荧光的空间分布的装置
    • US5424841A
    • 1995-06-13
    • US069150
    • 1993-05-28
    • Ezra Van GelderBee C. LiangRichard F. JohnstonRobert T. Loder, Jr.
    • Ezra Van GelderBee C. LiangRichard F. JohnstonRobert T. Loder, Jr.
    • G01N21/64
    • G01N21/6456G01N21/6428G01N2021/6441
    • A fluorescence detection scanner and method employing a fiberoptic collector, positioned adjacent to the scanning plane of the excitation beam, with a light collecting surface which is oriented to reject back-scattered excitation light from the incident surface of the sample support. The scanning plane of the excitation beam is off normal relative to the incident surface of the sample support and the light collecting surface is located within the area defined by the resulting acute angle of incidence. The light collecting surface is angled away from the location at which the incident excitation beam intersects the surface of the sample support so that back-scattered excitation light does not enter the optical fibers. The orientation of the light collector results in a four to five-fold decrease in excitation-light background without attenuation of the fluorescence emitted by the sample. Long-pass interference filters, selected to reject the excitation wavelength, are located at the input and output surfaces of the fiberoptic light collector to further reduce background excitation light. Multiple fluorophores are discriminated by sequentially scanning the sample with a different interchangeable narrow bandpass filter for each fluorophore. Internal fluorescence standards in the sample are used to determine filter efficiencies for each label in each filter image and the quantity of each fluorophore is computed by linear analysis. Increased detector sensitivity allows linear quantitation of multiple fluorophores in the femto-mole range.
    • 一种荧光检测扫描器和采用与激发光束的扫描平面相邻的光纤收集器的方法,该光收集表面被定向成阻止来自样品支架的入射表面的反向散射的激发光。 激发光束的扫描平面相对于样品支架的入射表面正常,并且光收集表面位于由所产生的锐角入射限定的区域内。 光收集表面远离入射激发光束与样品支架表面相交的位置成角度,使得后向散射的激发光不进入光纤。 光收集器的取向导致激发光背景下降4-5倍,而不会使样品发射的荧光发生衰减。 被选择以抑制激发波长的长通干涉滤光器位于光纤集光器的输入和输出表面,以进一步减少背景激发光。 通过用每个荧光团的不同可互换的窄带通滤光器顺序扫描样品来区分多个荧光团。 使用样品中的内部荧光标准来确定每个过滤图像中每个标记的过滤效率,并且通过线性分析计算每个荧光团的量。 增加的检测器灵敏度允许在毫微微摩尔范围内的多个荧光团的线性定量。
    • 10. 发明授权
    • Capillary valve, connector, and router
    • 毛细管阀,连接器和路由器
    • US06190616B1
    • 2001-02-20
    • US08927645
    • 1997-09-11
    • Stevan B. JovanovichGregory J. RonanDavid J. RoachRichard F. Johnston
    • Stevan B. JovanovichGregory J. RonanDavid J. RoachRichard F. Johnston
    • G01N120
    • G01N35/1097B01L3/5025B01L3/561B01L3/565B01L2200/026B01L2300/0838B01L2400/0406B01L2400/0622B01L2400/0644G01N30/20G01N30/24G01N30/6039G01N30/6078G01N2030/8827G02B6/3504G02B6/3558G02B6/381G02B6/3818G02B6/3825G02B6/3851G02B6/3854G02B6/3869G02B6/3877G02B6/3878G02B6/3887G02B6/3894G02B6/403Y10T137/86549Y10T436/143333Y10T436/2575
    • A capillary valve, connector and router where one or more cylindrical fibers, which may be capillaries, plugged capillaries, optical fibers, or the like, including at least one capillary tube are contained in a first cylindrical bundle of fibers that terminates at a first face. A second cylindrical bundle of fibers also containing one or more fibers including at least one capillary tube terminates in a second face abutting the first face. A fastener or adapter holds the members together with faces in mutually biased alignment, allowing relative rotation of the two cylindrical bundles which terminate in rotatable ferrules. Various functions achieved by rotation include a zero dead volume slide valve, a fluid router and a manifold. The fibers in each sleeve are preferably of uniform size for close symmetrical packing, but could be of disparate sizes, allowing connection of macroscale tubes to capillary tubes. A single connector member may be attached by a fastener to a reservoir or other macroscale device to bring one or more capillary tubes into fluid communication with a macroscale device. A plurality of fibers in one ferrule could allow dispensing of fluid from a single fiber in the other ferrule so that a single fiber could feed a plurality of wells through the plurality of fibers. Connection of a plurality of macroscale pumps enables push-pull fluid motion, with routing, in a capillary system formed by a plurality of fibers coupled by switches, connectors and routers. Chemical reactions, separations and analysis may be carried out with microliter volumes and smaller.
    • 一种毛细阀,连接器和路由器,其中一个或多个圆柱形纤维(其可以是毛细管,堵塞的毛细管,光纤等)包括至少一个毛细管,其包含在第一圆柱形纤维束中,其终止于第一面 。 还包含一个或多个包括至少一个毛细管的纤维的第二圆柱形纤维束终止于邻接第一面的第二面。 紧固件或适配器将构件以与相对偏压对准的面保持在一起,允许两个圆柱形束的相对旋转,其终止于可旋转的套圈中。 通过旋转实现的各种功能包括零死体积滑阀,流体路由器和歧管。 每个套管中的纤维优选地具有均匀的尺寸以用于紧密对称的包装,但是可以具有不同的尺寸,允许宏观尺管连接到毛细管。 单个连接器构件可以通过紧固件附接到储存器或其他宏观尺寸装置以使一个或多个毛细管与宏观尺寸装置流体连通。 一个套圈中的多个纤维可以允许从另一个套圈中的单个纤维分配流体,使得单个纤维可以通过多个纤维供给多个孔。 多个宏观泵的连接使得能够通过布线在由被开关,连接器和路由器耦合的多个光纤形成的毛细管系统中的推挽流体运动。 化学反应,分离和分析可以用微升体积和更小的方式进行。