Sensors and methods for sensing
    1.
    发明授权
    Sensors and methods for sensing 失效
    传感器和传感方法

    公开(公告)号:US5498549A

    公开(公告)日:1996-03-12

    申请号:US373855

    申请日:1995-01-18

    摘要: A sensor for measuring the concentration of an analyte in a medium is disclosed. In one embodiment, the sensor comprises a sensing element including a matrix material and, covalently bonded thereto, one or more monomeric indicator components each of which is capable of providing a first emitted signal of a given wavelength in response to being exposed to an excitation signal. The sensing element is capable of providing a second emitted signal having a longer wavelength than the first emitted signal or signals in response to being exposed to the excitation signal, the second emitted signal being provided by an excimer component produced in the sensing element from the monomeric indicator component(s) and being dependent on the concentration of the analyte in the medium to a greater extent than the first emitted signal or signals. In another embodiment, the sensor comprises a sensing element including two or more different monomeric components at least one or which is a monomeric indicator component capable of providing a first emitted signal in response to being exposed to a first excitation signal. The sensing element is capable of providing a second emitted signal in response to being exposed to a second excitation signal. This second emitted signal is provided by an exciplex produced from the monomeric components. This second emitted signal is preferably dependent on the concentration of the analyte in the medium. An excitation assembly is positioned and adapted to provide the excitation signal to the sensing element. A detector assembly is positioned and adapted to detect the second emitted signal. Preferably, a processor assembly is positioned and adapted to analyze the second emitted signal in determining the concentration of the analyte in the medium.

    摘要翻译: 公开了一种用于测量介质中分析物浓度的传感器。 在一个实施例中,传感器包括感测元件,其包括基体材料,并共价键合到一个或多个单体指示器部件,每个单体指示器部件能够响应于暴露于激励信号而提供给定波长的第一发射信号 。 感测元件能够响应于暴露于激励信号而提供具有比第一发射信号更长的波长的第二发射信号,第二发射信号由感测元件中产生的准分子组分由单体 指示剂组分,并且取决于介质中分析物的浓度比第一发射信号或信号更大程度。 在另一个实施例中,传感器包括感测元件,其包括两个或更多个不同的单体成分至少一个或者是能够响应于暴露于第一激发信号而提供第一发射信号的单体指示剂成分。 响应于暴露于第二激励信号,感测元件能够提供第二发射信号。 该第二发射信号由由单体组分产生的激元复合体提供。 该第二发射信号优选地取决于介质中分析物的浓度。 激励组件被定位并适于将激励信号提供给感测元件。 检测器组件被定位并适于检测第二发射信号。 优选地,处理器组件被定位并适于在确定介质中分析物的浓度时分析第二发射信号。

    Sensors and methods for sensing
    2.
    发明授权
    Sensors and methods for sensing 失效
    传感器和传感方法

    公开(公告)号:US5409666A

    公开(公告)日:1995-04-25

    申请号:US137289

    申请日:1993-10-14

    摘要: A sensor for measuring the concentration of an analyte in a medium is disclosed. In one embodiment, the sensor comprises a sensing element including a matrix material and, covalently bonded thereto, one or more monomeric indicator components each of which is capable of providing a first emitted signal of a given wavelength in response to being exposed to an excitation signal. The sensing element is capable of providing a second emitted signal having a longer wavelength than the first emitted signal or signals in response to being exposed to the excitation signal, the second emitted signal being provided by an excimer component produced in the sensing element from the monomeric indicator component(s) and being dependent on the concentration of the analyte in the medium to a greater extent than the first emitted signal or signals. In another embodiment, the sensor comprises a sensing element including two or more different monomeric components at least one of which is a monomeric indicator component capable of providing a first emitted signal in response to being exposed to a first excitation signal. The sensing element is capable of providing a second emitted signal in response to being exposed to a second excitation signal. This second emitted signal is provided by an exciplex produced from the monomeric components. This second emitted signal is preferably dependent on the concentration of the analyte in the medium. An excitation assembly is positioned and adapted to provide the excitation signal to the sensing element. A detector assembly is positioned and adapted to detect the second emitted signal. Preferably, a processor assembly is positioned and adapted to analyze the second emitted signal in determining the concentration of the analyte in the medium.

    摘要翻译: 公开了一种用于测量介质中分析物浓度的传感器。 在一个实施例中,传感器包括感测元件,其包括基体材料,并共价键合到一个或多个单体指示器部件,每个单体指示器部件能够响应于暴露于激励信号而提供给定波长的第一发射信号 。 感测元件能够响应于暴露于激励信号而提供具有比第一发射信号更长的波长的第二发射信号,第二发射信号由感测元件中产生的准分子组分由单体 指示剂组分,并且取决于介质中分析物的浓度比第一发射信号或信号更大程度。 在另一个实施例中,传感器包括感测元件,其包括两个或更多个不同的单体组分,其中至少一个单体组分是能够响应于暴露于第一激发信号而提供第一发射信号的单体指示剂组分。 响应于暴露于第二激励信号,感测元件能够提供第二发射信号。 该第二发射信号由由单体组分产生的激元复合体提供。 该第二发射信号优选地取决于介质中分析物的浓度。 激励组件被定位并适于将激励信号提供给感测元件。 检测器组件被定位并适于检测第二发射信号。 优选地,处理器组件被定位并适于在确定介质中分析物的浓度时分析第二发射信号。

    Dental impression tray for photocurable impression material
    5.
    发明授权
    Dental impression tray for photocurable impression material 失效
    用于光固化印模材料的牙印版托盘

    公开(公告)号:US5487662A

    公开(公告)日:1996-01-30

    申请号:US216148

    申请日:1994-03-22

    摘要: A dental impression tray includes a self-contained light source for curing photocurable impression material. The light source is a solid state light emitter such as a light emitting diode. In one embodiment, an array of light emitting diodes is arranged along a channel of the tray. In another embodiment, a light dispersive material distributes light into the tray channel from a bank of one or more emitters.

    摘要翻译: 牙印模托盘包括用于固化光固化印模材料的独立光源。 光源是诸如发光二极管的固态光发射器。 在一个实施例中,沿着托盘的通道布置发光二极管阵列。 在另一个实施例中,光散射材料将光从一个或多个发射器的一组分配到托盘通道中。

    Process for producing microfluidic articles
    7.
    发明授权
    Process for producing microfluidic articles 失效
    生产微流体制品的方法

    公开(公告)号:US07060419B2

    公开(公告)日:2006-06-13

    申请号:US10297962

    申请日:2001-06-14

    IPC分类号: B29C35/08 B29C33/42 C08F2/46

    摘要: A process for producing microfluidic articles comprises (a) preparing a photoreactive composition comprising (1) at least one reactive species that is a polymer or a polymer precursor and that is capable of undergoing an acid- or radical-initiated chemical reaction and (2) at least one multiphoton photoinitiator system; (b) exposing a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby forming exposed and unexposed portions of the composition, and thereby inducing at least one acid- or radical-initiated chemical reaction in the exposed portion; and (c) removing either the exposed or the unexposed portion of the composition, so as to form a microfluidic article comprising a seamless polymer matrix that defines at least one inlet, at least one outlet, and a microfluid processing architecture that is capable of fluidic communication with the inlet and the outlet and that is otherwise fully enclosed within the polymer matrix.

    摘要翻译: 制备微流体制品的方法包括(a)制备光反应性组合物,其包含(1)至少一种作为聚合物或聚合物前体的反应性物质,并且能够经历酸或自由基引发的化学反应,和(2) 至少一种多光子光引发剂体系; (b)将组合物的一部分暴露于足以引起同时吸收至少两个光子的光,从而形成组合物的暴露部分和未曝光部分,从而在暴露部分中诱导至少一种酸或自由基引发的化学反应 ; 和(c)去除组合物的暴露部分或未曝光部分,以形成包含无定形聚合物基质的微流体制品,所述无缝聚合物基质限定至少一个入口,至少一个出口以及能够流动的微流体加工结构 与入口和出口的通信,否则完全封闭在聚合物基质内。

    Multiphoton photosensitization system
    9.
    发明授权
    Multiphoton photosensitization system 有权
    多光子光敏化系统

    公开(公告)号:US06750266B2

    公开(公告)日:2004-06-15

    申请号:US10033507

    申请日:2001-12-28

    IPC分类号: G03F7038

    摘要: A multiphoton-activatable, photoreactive composition comprises: (a) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction; (b) a photochemically-effective amount of a multiphoton photosensitizer comprising at least one multiphoton up-converting inorganic phosphor; and (c) a photochemically-effective amount of a one-photon photoinitiator system that is capable of being photosensitized by the multiphoton photosensitizer.

    摘要翻译: 多光子活化的光反应性组合物包含:(a)能够经历酸或自由基引发的化学反应的至少一种反应性物质; (b)光化学有效量的多光子光敏剂,其包括至少一个多光子上转换无机磷光体; 和(c)光化学有效量的能够被多光子光敏剂光敏化的单光子光引发剂体系。